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Revision: 1.24
Committed: Tue Nov 24 22:47:12 2015 UTC (8 years, 6 months ago) by root
Branch: MAIN
Changes since 1.23: +2 -0 lines
Log Message:
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# User Rev Content
1 root 1.15 TODO:
2     08:30:06 <b_jonas> I think it could be worth to add a macro that works like alignof or _Alignof on sane
3     compilers, and like __alignof on MS compilers that support it, see
4     http://msdn.microsoft.com/en-us/library/45t0s5f4.aspx
5     08:30:24 <b_jonas> even if you can't support it on all the old compilers
6     08:31:17 <b_jonas> I'd also like a macro for alignas, but sadly, that seems impossible in general, because
7     the MS compiler only has some half-attempt to do something similar but with different and
8     more broken semantics, see http://msdn.microsoft.com/en-us/library/83ythb65.aspx
9     08:31:35 <b_jonas> but I wonder if some special case could still be worth to support
10     08:32:23 <b_jonas> probably not, because it would just account to making a union with a highly aligned type,
11     which is something I can do on any compiler portably
12    
13     TODO: #define ECB_IS_INTEGRAL(x) !((1 ? 1 : (x)) / 2)
14     #define ECB_IS_INTEGRAL(x) (sizeof ((x) + 1.0f) != sizeof((x) + 1ULL))
15    
16     TODO: https://gustedt.wordpress.com/2010/06/08/detect-empty-macro-arguments/
17    
18 root 1.13 implement is_constant for c11: https://gustedt.wordpress.com/2013/08/22/testing-compile-time-constness-and-null-pointers-with-c11s-_generic/
19 root 1.12
20     #ifdef _MSC_VER
21    
22     #include <stdlib.h>
23     #define bswap_32(x) _byteswap_ulong(x)
24     #define bswap_64(x) _byteswap_uint64(x)
25    
26     #elif defined(__APPLE__)
27    
28     // Mac OS X / Darwin features
29     #include <libkern/OSByteOrder.h>
30     #define bswap_32(x) OSSwapInt32(x)
31     #define bswap_64(x) OSSwapInt64(x)
32    
33     #elif defined(__sun) || defined(sun)
34    
35     #include <sys/byteorder.h>
36     #define bswap_32(x) BSWAP_32(x)
37     #define bswap_64(x) BSWAP_64(x)
38    
39     #elif defined(__FreeBSD__)
40    
41     #include <sys/endian.h>
42     #define bswap_32(x) bswap32(x)
43     #define bswap_64(x) bswap64(x)
44    
45     #elif defined(__OpenBSD__)
46    
47     #include <sys/types.h>
48     #define bswap_32(x) swap32(x)
49     #define bswap_64(x) swap64(x)
50    
51     #elif defined(__NetBSD__)
52    
53     #include <sys/types.h>
54     #include <machine/bswap.h>
55     #if defined(__BSWAP_RENAME) && !defined(__bswap_32)
56     #define bswap_32(x) bswap32(x)
57     #define bswap_64(x) bswap64(x)
58     #endif
59    
60     #else
61    
62     #include <byteswap.h>
63    
64     #endif
65    
66 root 1.23 - apply ctz/ld patch for msc by Zsbán Ambrus.
67 root 1.24 - ECB_PTRSIZE erroneously was 8 on most 32bit systems (
68     found by Zsbán Ambrus).
69 root 1.23
70 root 1.22 0x00010005
71     - improve ecb_binary16_to_float.
72     - add ecb_float_to_binary16.
73     - add ecb_binary16_to_binary32 and ecb_binary32_to_binary16 pair.
74    
75 root 1.6 0x00010001
76     - add ecb_is_pot32/64.
77     - add intptr_t/uintptr_t.
78     - add ECB_PTRSIZE.
79 root 1.7 - more macros for C/C++ version checks.
80     - support C11 atomics for memory fences.
81     - support gcc-4.7 atomics for memory fences.
82 root 1.10 - support m68k, m88k and sh (patch by Miod Vallat).
83 root 1.11 - add ecb_binary16_to_float.
84 root 1.6
85 root 1.9 TODO: ecb_restrict_array etc. http://ue.tst.eu/5093eafd713ec5fda776d8065070aa4c.txt
86 sf-exg 1.20 TODO: ffs
87 root 1.1 64 bit variants of everything
88 root 1.2 TODO: examples from X for clz/ctz
89 root 1.3 TODO: arithmetic right shift
90     TODO: template/generic functions for x32/x64 and so on
91 root 1.4 TODO: #define ecb_integer_multiples_of(n,d) ((char (*)[d])(n) - (char (*)[d])0)
92 root 1.3 TODO: generalised shift
93 root 1.8 TODO: #define ECB_FAST_UNALIGNED_ACCESS
94 root 1.3 unsigned long gensh(unsigned long v, int x) {
95     int a, b;
96     a = (v << x) & -(((unsigned int)x) < 32);
97     x = -x;
98     b = (v >> x) & -(((unsigned int)x) < 32);
99     return a|b;
100     }
101 root 1.14
102 root 1.16 TODO: export(=dllexport) & hidden
103     TODO: flatten
104     TODO: warning(msg)
105     TODO: error(msg)
106 root 1.17 TODO: leaf (uh), noclone (hmmm)
107     TODO: nonnull, returns_nonnull
108     TODO: nothrow
109     TODO: used
110     TODO: trap
111     TODO: http://llvm.org/docs/doxygen/html/Compiler_8h_source.html
112 root 1.16
113 root 1.14 TODO: read/write unaligned macros
114     TODO: htonl and friends
115 sf-exg 1.20 TODO: macro to convert from unsigned to signed "the natural way"
116 root 1.14 TODO: ecb_static_assert, with message (just like boost), or somesuch, using array-declaration
117     TODO: alignof
118    
119