… | |
… | |
491 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
491 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
492 | /* ECB.H BEGIN */ |
492 | /* ECB.H BEGIN */ |
493 | /* |
493 | /* |
494 | * libecb - http://software.schmorp.de/pkg/libecb |
494 | * libecb - http://software.schmorp.de/pkg/libecb |
495 | * |
495 | * |
496 | * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> |
496 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
497 | * Copyright (©) 2011 Emanuele Giaquinta |
497 | * Copyright (©) 2011 Emanuele Giaquinta |
498 | * All rights reserved. |
498 | * All rights reserved. |
499 | * |
499 | * |
500 | * Redistribution and use in source and binary forms, with or without modifica- |
500 | * Redistribution and use in source and binary forms, with or without modifica- |
501 | * tion, are permitted provided that the following conditions are met: |
501 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
532 | |
532 | |
533 | #ifndef ECB_H |
533 | #ifndef ECB_H |
534 | #define ECB_H |
534 | #define ECB_H |
535 | |
535 | |
536 | /* 16 bits major, 16 bits minor */ |
536 | /* 16 bits major, 16 bits minor */ |
537 | #define ECB_VERSION 0x00010003 |
537 | #define ECB_VERSION 0x00010004 |
538 | |
538 | |
539 | #ifdef _WIN32 |
539 | #ifdef _WIN32 |
540 | typedef signed char int8_t; |
540 | typedef signed char int8_t; |
541 | typedef unsigned char uint8_t; |
541 | typedef unsigned char uint8_t; |
542 | typedef signed short int16_t; |
542 | typedef signed short int16_t; |
… | |
… | |
566 | #else |
566 | #else |
567 | #define ECB_PTRSIZE 4 |
567 | #define ECB_PTRSIZE 4 |
568 | #endif |
568 | #endif |
569 | #endif |
569 | #endif |
570 | |
570 | |
|
|
571 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
572 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
573 | |
571 | /* work around x32 idiocy by defining proper macros */ |
574 | /* work around x32 idiocy by defining proper macros */ |
572 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
575 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
573 | #if _ILP32 |
576 | #if _ILP32 |
574 | #define ECB_AMD64_X32 1 |
577 | #define ECB_AMD64_X32 1 |
575 | #else |
578 | #else |
576 | #define ECB_AMD64 1 |
579 | #define ECB_AMD64 1 |
577 | #endif |
580 | #endif |
… | |
… | |
582 | * causing enormous grief in return for some better fake benchmark numbers. |
585 | * causing enormous grief in return for some better fake benchmark numbers. |
583 | * or so. |
586 | * or so. |
584 | * we try to detect these and simply assume they are not gcc - if they have |
587 | * we try to detect these and simply assume they are not gcc - if they have |
585 | * an issue with that they should have done it right in the first place. |
588 | * an issue with that they should have done it right in the first place. |
586 | */ |
589 | */ |
587 | #ifndef ECB_GCC_VERSION |
|
|
588 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
590 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
589 | #define ECB_GCC_VERSION(major,minor) 0 |
591 | #define ECB_GCC_VERSION(major,minor) 0 |
590 | #else |
592 | #else |
591 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
593 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
592 | #endif |
594 | #endif |
|
|
595 | |
|
|
596 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
597 | |
|
|
598 | #if __clang__ && defined __has_builtin |
|
|
599 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
600 | #else |
|
|
601 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
602 | #endif |
|
|
603 | |
|
|
604 | #if __clang__ && defined __has_extension |
|
|
605 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
606 | #else |
|
|
607 | #define ECB_CLANG_EXTENSION(x) 0 |
593 | #endif |
608 | #endif |
594 | |
609 | |
595 | #define ECB_CPP (__cplusplus+0) |
610 | #define ECB_CPP (__cplusplus+0) |
596 | #define ECB_CPP11 (__cplusplus >= 201103L) |
611 | #define ECB_CPP11 (__cplusplus >= 201103L) |
597 | |
612 | |
… | |
… | |
627 | |
642 | |
628 | #if ECB_NO_SMP |
643 | #if ECB_NO_SMP |
629 | #define ECB_MEMORY_FENCE do { } while (0) |
644 | #define ECB_MEMORY_FENCE do { } while (0) |
630 | #endif |
645 | #endif |
631 | |
646 | |
|
|
647 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
648 | #if __xlC__ && ECB_CPP |
|
|
649 | #include <builtins.h> |
|
|
650 | #endif |
|
|
651 | |
632 | #ifndef ECB_MEMORY_FENCE |
652 | #ifndef ECB_MEMORY_FENCE |
633 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
653 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
634 | #if __i386 || __i386__ |
654 | #if __i386 || __i386__ |
635 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
655 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
636 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
656 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
637 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
657 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
638 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
658 | #elif ECB_GCC_AMD64 |
639 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
659 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
640 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
660 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
641 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
661 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
642 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
662 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
643 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
663 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
… | |
… | |
647 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
667 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
648 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
668 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
649 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
669 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
650 | #elif __aarch64__ |
670 | #elif __aarch64__ |
651 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
671 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
652 | #elif (__sparc || __sparc__) && !__sparcv8 |
672 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
653 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
673 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
654 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
674 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
655 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
675 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
656 | #elif defined __s390__ || defined __s390x__ |
676 | #elif defined __s390__ || defined __s390x__ |
657 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
677 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
… | |
… | |
681 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
701 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
682 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
702 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
683 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
703 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
684 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
704 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
685 | |
705 | |
686 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
706 | #elif ECB_CLANG_EXTENSION(c_atomic) |
687 | * without risking compile time errors with other compilers. We *could* |
|
|
688 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
689 | * around this shit time and again. |
|
|
690 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
691 | * // see comment below (stdatomic.h) about the C11 memory model. |
707 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
692 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
708 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
693 | * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
709 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
694 | * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
710 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
695 | */ |
|
|
696 | |
711 | |
697 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
712 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
698 | #define ECB_MEMORY_FENCE __sync_synchronize () |
713 | #define ECB_MEMORY_FENCE __sync_synchronize () |
699 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
714 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
700 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
715 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
… | |
… | |
763 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
778 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
764 | #endif |
779 | #endif |
765 | |
780 | |
766 | /*****************************************************************************/ |
781 | /*****************************************************************************/ |
767 | |
782 | |
768 | #if __cplusplus |
783 | #if ECB_CPP |
769 | #define ecb_inline static inline |
784 | #define ecb_inline static inline |
770 | #elif ECB_GCC_VERSION(2,5) |
785 | #elif ECB_GCC_VERSION(2,5) |
771 | #define ecb_inline static __inline__ |
786 | #define ecb_inline static __inline__ |
772 | #elif ECB_C99 |
787 | #elif ECB_C99 |
773 | #define ecb_inline static inline |
788 | #define ecb_inline static inline |
… | |
… | |
787 | |
802 | |
788 | #define ECB_CONCAT_(a, b) a ## b |
803 | #define ECB_CONCAT_(a, b) a ## b |
789 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
804 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
790 | #define ECB_STRINGIFY_(a) # a |
805 | #define ECB_STRINGIFY_(a) # a |
791 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
806 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
807 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
792 | |
808 | |
793 | #define ecb_function_ ecb_inline |
809 | #define ecb_function_ ecb_inline |
794 | |
810 | |
795 | #if ECB_GCC_VERSION(3,1) |
811 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
796 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
812 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
797 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
798 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
799 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
800 | #else |
813 | #else |
801 | #define ecb_attribute(attrlist) |
814 | #define ecb_attribute(attrlist) |
|
|
815 | #endif |
802 | |
816 | |
|
|
817 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
818 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
819 | #else |
803 | /* possible C11 impl for integral types |
820 | /* possible C11 impl for integral types |
804 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
821 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
805 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
822 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
806 | |
823 | |
807 | #define ecb_is_constant(expr) 0 |
824 | #define ecb_is_constant(expr) 0 |
|
|
825 | #endif |
|
|
826 | |
|
|
827 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
828 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
829 | #else |
808 | #define ecb_expect(expr,value) (expr) |
830 | #define ecb_expect(expr,value) (expr) |
|
|
831 | #endif |
|
|
832 | |
|
|
833 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
834 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
835 | #else |
809 | #define ecb_prefetch(addr,rw,locality) |
836 | #define ecb_prefetch(addr,rw,locality) |
810 | #endif |
837 | #endif |
811 | |
838 | |
812 | /* no emulation for ecb_decltype */ |
839 | /* no emulation for ecb_decltype */ |
813 | #if ECB_GCC_VERSION(4,5) |
840 | #if ECB_CPP11 |
|
|
841 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
842 | template<class T> struct ecb_decltype_t { typedef T type; }; |
814 | #define ecb_decltype(x) __decltype(x) |
843 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
815 | #elif ECB_GCC_VERSION(3,0) |
844 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
816 | #define ecb_decltype(x) __typeof(x) |
845 | #define ecb_decltype(x) __typeof__ (x) |
817 | #endif |
846 | #endif |
818 | |
847 | |
819 | #if _MSC_VER >= 1300 |
848 | #if _MSC_VER >= 1300 |
820 | #define ecb_deprecated __declspec(deprecated) |
849 | #define ecb_deprecated __declspec (deprecated) |
821 | #else |
850 | #else |
822 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
851 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
823 | #endif |
852 | #endif |
824 | |
853 | |
|
|
854 | #if _MSC_VER >= 1500 |
|
|
855 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
856 | #elif ECB_GCC_VERSION(4,5) |
|
|
857 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
858 | #else |
|
|
859 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
860 | #endif |
|
|
861 | |
|
|
862 | #if _MSC_VER >= 1400 |
|
|
863 | #define ecb_noinline __declspec (noinline) |
|
|
864 | #else |
825 | #define ecb_noinline ecb_attribute ((__noinline__)) |
865 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
866 | #endif |
|
|
867 | |
826 | #define ecb_unused ecb_attribute ((__unused__)) |
868 | #define ecb_unused ecb_attribute ((__unused__)) |
827 | #define ecb_const ecb_attribute ((__const__)) |
869 | #define ecb_const ecb_attribute ((__const__)) |
828 | #define ecb_pure ecb_attribute ((__pure__)) |
870 | #define ecb_pure ecb_attribute ((__pure__)) |
829 | |
871 | |
830 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */ |
872 | #if ECB_C11 || __IBMC_NORETURN |
831 | #if ECB_C11 |
873 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
832 | #define ecb_noreturn _Noreturn |
874 | #define ecb_noreturn _Noreturn |
|
|
875 | #elif ECB_CPP11 |
|
|
876 | #define ecb_noreturn [[noreturn]] |
|
|
877 | #elif _MSC_VER >= 1200 |
|
|
878 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
879 | #define ecb_noreturn __declspec (noreturn) |
833 | #else |
880 | #else |
834 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
881 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
835 | #endif |
882 | #endif |
836 | |
883 | |
837 | #if ECB_GCC_VERSION(4,3) |
884 | #if ECB_GCC_VERSION(4,3) |
… | |
… | |
852 | /* for compatibility to the rest of the world */ |
899 | /* for compatibility to the rest of the world */ |
853 | #define ecb_likely(expr) ecb_expect_true (expr) |
900 | #define ecb_likely(expr) ecb_expect_true (expr) |
854 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
901 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
855 | |
902 | |
856 | /* count trailing zero bits and count # of one bits */ |
903 | /* count trailing zero bits and count # of one bits */ |
857 | #if ECB_GCC_VERSION(3,4) |
904 | #if ECB_GCC_VERSION(3,4) \ |
|
|
905 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
906 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
907 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
858 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
908 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
859 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
909 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
860 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
910 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
861 | #define ecb_ctz32(x) __builtin_ctz (x) |
911 | #define ecb_ctz32(x) __builtin_ctz (x) |
862 | #define ecb_ctz64(x) __builtin_ctzll (x) |
912 | #define ecb_ctz64(x) __builtin_ctzll (x) |
863 | #define ecb_popcount32(x) __builtin_popcount (x) |
913 | #define ecb_popcount32(x) __builtin_popcount (x) |
864 | /* no popcountll */ |
914 | /* no popcountll */ |
865 | #else |
915 | #else |
866 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
916 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
867 | ecb_function_ int |
917 | ecb_function_ ecb_const int |
868 | ecb_ctz32 (uint32_t x) |
918 | ecb_ctz32 (uint32_t x) |
869 | { |
919 | { |
870 | int r = 0; |
920 | int r = 0; |
871 | |
921 | |
872 | x &= ~x + 1; /* this isolates the lowest bit */ |
922 | x &= ~x + 1; /* this isolates the lowest bit */ |
… | |
… | |
886 | #endif |
936 | #endif |
887 | |
937 | |
888 | return r; |
938 | return r; |
889 | } |
939 | } |
890 | |
940 | |
891 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
941 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
892 | ecb_function_ int |
942 | ecb_function_ ecb_const int |
893 | ecb_ctz64 (uint64_t x) |
943 | ecb_ctz64 (uint64_t x) |
894 | { |
944 | { |
895 | int shift = x & 0xffffffffU ? 0 : 32; |
945 | int shift = x & 0xffffffffU ? 0 : 32; |
896 | return ecb_ctz32 (x >> shift) + shift; |
946 | return ecb_ctz32 (x >> shift) + shift; |
897 | } |
947 | } |
898 | |
948 | |
899 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
949 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
900 | ecb_function_ int |
950 | ecb_function_ ecb_const int |
901 | ecb_popcount32 (uint32_t x) |
951 | ecb_popcount32 (uint32_t x) |
902 | { |
952 | { |
903 | x -= (x >> 1) & 0x55555555; |
953 | x -= (x >> 1) & 0x55555555; |
904 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
954 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
905 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
955 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
906 | x *= 0x01010101; |
956 | x *= 0x01010101; |
907 | |
957 | |
908 | return x >> 24; |
958 | return x >> 24; |
909 | } |
959 | } |
910 | |
960 | |
911 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
961 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
912 | ecb_function_ int ecb_ld32 (uint32_t x) |
962 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
913 | { |
963 | { |
914 | int r = 0; |
964 | int r = 0; |
915 | |
965 | |
916 | if (x >> 16) { x >>= 16; r += 16; } |
966 | if (x >> 16) { x >>= 16; r += 16; } |
917 | if (x >> 8) { x >>= 8; r += 8; } |
967 | if (x >> 8) { x >>= 8; r += 8; } |
… | |
… | |
920 | if (x >> 1) { r += 1; } |
970 | if (x >> 1) { r += 1; } |
921 | |
971 | |
922 | return r; |
972 | return r; |
923 | } |
973 | } |
924 | |
974 | |
925 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
975 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
926 | ecb_function_ int ecb_ld64 (uint64_t x) |
976 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
927 | { |
977 | { |
928 | int r = 0; |
978 | int r = 0; |
929 | |
979 | |
930 | if (x >> 32) { x >>= 32; r += 32; } |
980 | if (x >> 32) { x >>= 32; r += 32; } |
931 | |
981 | |
932 | return r + ecb_ld32 (x); |
982 | return r + ecb_ld32 (x); |
933 | } |
983 | } |
934 | #endif |
984 | #endif |
935 | |
985 | |
936 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
986 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
937 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
987 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
938 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
988 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
939 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
989 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
940 | |
990 | |
941 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
991 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
942 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
992 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
943 | { |
993 | { |
944 | return ( (x * 0x0802U & 0x22110U) |
994 | return ( (x * 0x0802U & 0x22110U) |
945 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
995 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
946 | } |
996 | } |
947 | |
997 | |
948 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
998 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
949 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
999 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
950 | { |
1000 | { |
951 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1001 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
952 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1002 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
953 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1003 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
954 | x = ( x >> 8 ) | ( x << 8); |
1004 | x = ( x >> 8 ) | ( x << 8); |
955 | |
1005 | |
956 | return x; |
1006 | return x; |
957 | } |
1007 | } |
958 | |
1008 | |
959 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1009 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
960 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1010 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
961 | { |
1011 | { |
962 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1012 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
963 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1013 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
964 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1014 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
965 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1015 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
968 | return x; |
1018 | return x; |
969 | } |
1019 | } |
970 | |
1020 | |
971 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1021 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
972 | /* so for this version we are lazy */ |
1022 | /* so for this version we are lazy */ |
973 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1023 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
974 | ecb_function_ int |
1024 | ecb_function_ ecb_const int |
975 | ecb_popcount64 (uint64_t x) |
1025 | ecb_popcount64 (uint64_t x) |
976 | { |
1026 | { |
977 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1027 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
978 | } |
1028 | } |
979 | |
1029 | |
980 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1030 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
981 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1031 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
982 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1032 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
983 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1033 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
984 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1034 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
985 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1035 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
986 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1036 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
987 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1037 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
988 | |
1038 | |
989 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1039 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
990 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1040 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
991 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1041 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
992 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1042 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
993 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1043 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
994 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1044 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
995 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1045 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
996 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1046 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
997 | |
1047 | |
998 | #if ECB_GCC_VERSION(4,3) |
1048 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1049 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1050 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1051 | #else |
999 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1052 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1053 | #endif |
1000 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1054 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1001 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1055 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1056 | #elif _MSC_VER |
|
|
1057 | #include <stdlib.h> |
|
|
1058 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1059 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1060 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
1002 | #else |
1061 | #else |
1003 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1062 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
1004 | ecb_function_ uint16_t |
1063 | ecb_function_ ecb_const uint16_t |
1005 | ecb_bswap16 (uint16_t x) |
1064 | ecb_bswap16 (uint16_t x) |
1006 | { |
1065 | { |
1007 | return ecb_rotl16 (x, 8); |
1066 | return ecb_rotl16 (x, 8); |
1008 | } |
1067 | } |
1009 | |
1068 | |
1010 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1069 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
1011 | ecb_function_ uint32_t |
1070 | ecb_function_ ecb_const uint32_t |
1012 | ecb_bswap32 (uint32_t x) |
1071 | ecb_bswap32 (uint32_t x) |
1013 | { |
1072 | { |
1014 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1073 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1015 | } |
1074 | } |
1016 | |
1075 | |
1017 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1076 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
1018 | ecb_function_ uint64_t |
1077 | ecb_function_ ecb_const uint64_t |
1019 | ecb_bswap64 (uint64_t x) |
1078 | ecb_bswap64 (uint64_t x) |
1020 | { |
1079 | { |
1021 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1080 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1022 | } |
1081 | } |
1023 | #endif |
1082 | #endif |
1024 | |
1083 | |
1025 | #if ECB_GCC_VERSION(4,5) |
1084 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
1026 | #define ecb_unreachable() __builtin_unreachable () |
1085 | #define ecb_unreachable() __builtin_unreachable () |
1027 | #else |
1086 | #else |
1028 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1087 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1029 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1088 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
1030 | ecb_inline void ecb_unreachable (void) { } |
1089 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
1031 | #endif |
1090 | #endif |
1032 | |
1091 | |
1033 | /* try to tell the compiler that some condition is definitely true */ |
1092 | /* try to tell the compiler that some condition is definitely true */ |
1034 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1093 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1035 | |
1094 | |
1036 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1095 | ecb_inline ecb_const unsigned char ecb_byteorder_helper (void); |
1037 | ecb_inline unsigned char |
1096 | ecb_inline ecb_const unsigned char |
1038 | ecb_byteorder_helper (void) |
1097 | ecb_byteorder_helper (void) |
1039 | { |
1098 | { |
1040 | /* the union code still generates code under pressure in gcc, */ |
1099 | /* the union code still generates code under pressure in gcc, */ |
1041 | /* but less than using pointers, and always seems to */ |
1100 | /* but less than using pointers, and always seems to */ |
1042 | /* successfully return a constant. */ |
1101 | /* successfully return a constant. */ |
1043 | /* the reason why we have this horrible preprocessor mess */ |
1102 | /* the reason why we have this horrible preprocessor mess */ |
1044 | /* is to avoid it in all cases, at least on common architectures */ |
1103 | /* is to avoid it in all cases, at least on common architectures */ |
1045 | /* or when using a recent enough gcc version (>= 4.6) */ |
1104 | /* or when using a recent enough gcc version (>= 4.6) */ |
1046 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
1105 | #if ((__i386 || __i386__) && !__VOS__) || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
1047 | return 0x44; |
1106 | return 0x44; |
1048 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
1107 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
1049 | return 0x44; |
1108 | return 0x44; |
1050 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
1109 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
1051 | return 0x11; |
1110 | return 0x11; |
… | |
… | |
1057 | } u = { 0x11223344 }; |
1116 | } u = { 0x11223344 }; |
1058 | return u.c; |
1117 | return u.c; |
1059 | #endif |
1118 | #endif |
1060 | } |
1119 | } |
1061 | |
1120 | |
1062 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1121 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
1063 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1122 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1064 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1123 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
1065 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1124 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1066 | |
1125 | |
1067 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1126 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1068 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1127 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1069 | #else |
1128 | #else |
1070 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1129 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1071 | #endif |
1130 | #endif |
1072 | |
1131 | |
1073 | #if __cplusplus |
1132 | #if ECB_CPP |
1074 | template<typename T> |
1133 | template<typename T> |
1075 | static inline T ecb_div_rd (T val, T div) |
1134 | static inline T ecb_div_rd (T val, T div) |
1076 | { |
1135 | { |
1077 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1136 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1078 | } |
1137 | } |
… | |
… | |
1102 | |
1161 | |
1103 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1162 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1104 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1163 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1105 | #if 0 \ |
1164 | #if 0 \ |
1106 | || __i386 || __i386__ \ |
1165 | || __i386 || __i386__ \ |
1107 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
1166 | || ECB_GCC_AMD64 \ |
1108 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1167 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1109 | || defined __s390__ || defined __s390x__ \ |
1168 | || defined __s390__ || defined __s390x__ \ |
1110 | || defined __mips__ \ |
1169 | || defined __mips__ \ |
1111 | || defined __alpha__ \ |
1170 | || defined __alpha__ \ |
1112 | || defined __hppa__ \ |
1171 | || defined __hppa__ \ |
1113 | || defined __ia64__ \ |
1172 | || defined __ia64__ \ |
1114 | || defined __m68k__ \ |
1173 | || defined __m68k__ \ |
1115 | || defined __m88k__ \ |
1174 | || defined __m88k__ \ |
1116 | || defined __sh__ \ |
1175 | || defined __sh__ \ |
1117 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ |
1176 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
1118 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
1177 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
1119 | || defined __aarch64__ |
1178 | || defined __aarch64__ |
1120 | #define ECB_STDFP 1 |
1179 | #define ECB_STDFP 1 |
1121 | #include <string.h> /* for memcpy */ |
1180 | #include <string.h> /* for memcpy */ |
1122 | #else |
1181 | #else |
… | |
… | |
1138 | #define ECB_NAN NAN |
1197 | #define ECB_NAN NAN |
1139 | #else |
1198 | #else |
1140 | #define ECB_NAN ECB_INFINITY |
1199 | #define ECB_NAN ECB_INFINITY |
1141 | #endif |
1200 | #endif |
1142 | |
1201 | |
|
|
1202 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1203 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1204 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1205 | #else |
|
|
1206 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1207 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1208 | #endif |
|
|
1209 | |
1143 | /* converts an ieee half/binary16 to a float */ |
1210 | /* converts an ieee half/binary16 to a float */ |
1144 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
1211 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
1145 | ecb_function_ float |
1212 | ecb_function_ ecb_const float |
1146 | ecb_binary16_to_float (uint16_t x) |
1213 | ecb_binary16_to_float (uint16_t x) |
1147 | { |
1214 | { |
1148 | int e = (x >> 10) & 0x1f; |
1215 | int e = (x >> 10) & 0x1f; |
1149 | int m = x & 0x3ff; |
1216 | int m = x & 0x3ff; |
1150 | float r; |
1217 | float r; |
1151 | |
1218 | |
1152 | if (!e ) r = ldexpf (m , -24); |
1219 | if (!e ) r = ecb_ldexpf (m , -24); |
1153 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
1220 | else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25); |
1154 | else if (m ) r = ECB_NAN; |
1221 | else if (m ) r = ECB_NAN; |
1155 | else r = ECB_INFINITY; |
1222 | else r = ECB_INFINITY; |
1156 | |
1223 | |
1157 | return x & 0x8000 ? -r : r; |
1224 | return x & 0x8000 ? -r : r; |
1158 | } |
1225 | } |
1159 | |
1226 | |
1160 | /* convert a float to ieee single/binary32 */ |
1227 | /* convert a float to ieee single/binary32 */ |
1161 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
1228 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
1162 | ecb_function_ uint32_t |
1229 | ecb_function_ ecb_const uint32_t |
1163 | ecb_float_to_binary32 (float x) |
1230 | ecb_float_to_binary32 (float x) |
1164 | { |
1231 | { |
1165 | uint32_t r; |
1232 | uint32_t r; |
1166 | |
1233 | |
1167 | #if ECB_STDFP |
1234 | #if ECB_STDFP |
… | |
… | |
1174 | if (x == 0e0f ) return 0x00000000U; |
1241 | if (x == 0e0f ) return 0x00000000U; |
1175 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1242 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1176 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1243 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1177 | if (x != x ) return 0x7fbfffffU; |
1244 | if (x != x ) return 0x7fbfffffU; |
1178 | |
1245 | |
1179 | m = frexpf (x, &e) * 0x1000000U; |
1246 | m = ecb_frexpf (x, &e) * 0x1000000U; |
1180 | |
1247 | |
1181 | r = m & 0x80000000U; |
1248 | r = m & 0x80000000U; |
1182 | |
1249 | |
1183 | if (r) |
1250 | if (r) |
1184 | m = -m; |
1251 | m = -m; |
… | |
… | |
1196 | |
1263 | |
1197 | return r; |
1264 | return r; |
1198 | } |
1265 | } |
1199 | |
1266 | |
1200 | /* converts an ieee single/binary32 to a float */ |
1267 | /* converts an ieee single/binary32 to a float */ |
1201 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
1268 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
1202 | ecb_function_ float |
1269 | ecb_function_ ecb_const float |
1203 | ecb_binary32_to_float (uint32_t x) |
1270 | ecb_binary32_to_float (uint32_t x) |
1204 | { |
1271 | { |
1205 | float r; |
1272 | float r; |
1206 | |
1273 | |
1207 | #if ECB_STDFP |
1274 | #if ECB_STDFP |
… | |
… | |
1217 | x |= 0x800000U; |
1284 | x |= 0x800000U; |
1218 | else |
1285 | else |
1219 | e = 1; |
1286 | e = 1; |
1220 | |
1287 | |
1221 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1288 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1222 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
1289 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
1223 | |
1290 | |
1224 | r = neg ? -r : r; |
1291 | r = neg ? -r : r; |
1225 | #endif |
1292 | #endif |
1226 | |
1293 | |
1227 | return r; |
1294 | return r; |
1228 | } |
1295 | } |
1229 | |
1296 | |
1230 | /* convert a double to ieee double/binary64 */ |
1297 | /* convert a double to ieee double/binary64 */ |
1231 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
1298 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
1232 | ecb_function_ uint64_t |
1299 | ecb_function_ ecb_const uint64_t |
1233 | ecb_double_to_binary64 (double x) |
1300 | ecb_double_to_binary64 (double x) |
1234 | { |
1301 | { |
1235 | uint64_t r; |
1302 | uint64_t r; |
1236 | |
1303 | |
1237 | #if ECB_STDFP |
1304 | #if ECB_STDFP |
… | |
… | |
1266 | |
1333 | |
1267 | return r; |
1334 | return r; |
1268 | } |
1335 | } |
1269 | |
1336 | |
1270 | /* converts an ieee double/binary64 to a double */ |
1337 | /* converts an ieee double/binary64 to a double */ |
1271 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
1338 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
1272 | ecb_function_ double |
1339 | ecb_function_ ecb_const double |
1273 | ecb_binary64_to_double (uint64_t x) |
1340 | ecb_binary64_to_double (uint64_t x) |
1274 | { |
1341 | { |
1275 | double r; |
1342 | double r; |
1276 | |
1343 | |
1277 | #if ECB_STDFP |
1344 | #if ECB_STDFP |
… | |
… | |
2613 | { |
2680 | { |
2614 | invoke_cb = invoke_pending_cb; |
2681 | invoke_cb = invoke_pending_cb; |
2615 | } |
2682 | } |
2616 | |
2683 | |
2617 | void |
2684 | void |
2618 | ev_set_loop_release_cb (EV_P_ ev_loop_callback EV_THROW release, ev_loop_callback EV_THROW acquire) EV_THROW |
2685 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
2619 | { |
2686 | { |
2620 | release_cb = release; |
2687 | release_cb = release; |
2621 | acquire_cb = acquire; |
2688 | acquire_cb = acquire; |
2622 | } |
2689 | } |
2623 | #endif |
2690 | #endif |