| … | |
… | |
| 9 | #define PP_STRINGIFY_(a) #a |
9 | #define PP_STRINGIFY_(a) #a |
| 10 | #define PP_STRINGIFY(a) PP_STRINGIFY_(a) |
10 | #define PP_STRINGIFY(a) PP_STRINGIFY_(a) |
| 11 | |
11 | |
| 12 | // actually, some gcc-3.x versions work, too |
12 | // actually, some gcc-3.x versions work, too |
| 13 | #define HAVE_GCC_BUILTINS (__GNUC__ >= 4) |
13 | #define HAVE_GCC_BUILTINS (__GNUC__ >= 4) |
| 14 | #define HAVE_GCC_BUILTINS 0 |
14 | |
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15 | #ifndef __attribute__ |
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16 | # if __GNUC__ |
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17 | # if (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || (__GNUC__ < 2) |
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18 | # define __attribute__(x) |
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19 | # endif |
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20 | # endif |
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21 | # define __attribute__(x) |
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22 | #endif |
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23 | |
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24 | #define NORETURN __attribute__ ((noreturn)) |
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25 | #define UNUSED __attribute__ ((unused)) |
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26 | #define CONST __attribute__ ((const)) |
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27 | |
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28 | // increases code size unless -fno-enforce-eh-specs |
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29 | #if __GNUC__ |
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30 | # define NOTHROW |
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31 | # define THROW(x) |
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32 | #else |
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33 | # define NOTHROW throw() |
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34 | # define THROW(x) throw x |
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35 | #endif |
| 15 | |
36 | |
| 16 | extern class byteorder { |
37 | extern class byteorder { |
| 17 | static unsigned int e; // at least 32 bits |
38 | static unsigned int e; // at least 32 bits |
| 18 | public: |
39 | public: |
| 19 | byteorder (); |
40 | byteorder (); |
| … | |
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| 43 | return (int(a) * int(p) + int(b) * int(100 - p)) / 100; |
64 | return (int(a) * int(p) + int(b) * int(100 - p)) / 100; |
| 44 | } |
65 | } |
| 45 | |
66 | |
| 46 | // some bit functions, xft fuck me plenty |
67 | // some bit functions, xft fuck me plenty |
| 47 | #if HAVE_GCC_BUILTINS |
68 | #if HAVE_GCC_BUILTINS |
| 48 | static inline int ctz (unsigned int x) { return __builtin_ctz (x); } |
69 | static inline int ctz (unsigned int x) CONST { return __builtin_ctz (x); } |
| 49 | static inline int popcount (unsigned int x) { return __builtin_popcount (x); } |
70 | static inline int popcount (unsigned int x) CONST { return __builtin_popcount (x); } |
| 50 | #else |
71 | #else |
| 51 | // count trailing zero bits and count # of one bits |
72 | // count trailing zero bits and count # of one bits |
| 52 | int ctz (unsigned int x); |
73 | int ctz (unsigned int x) CONST; |
| 53 | int popcount (unsigned int x); |
74 | int popcount (unsigned int x) CONST; |
| 54 | #endif |
75 | #endif |
| 55 | |
76 | |
| 56 | // in range including end |
77 | // in range including end |
| 57 | #define IN_RANGE_INC(val,beg,end) \ |
78 | #define IN_RANGE_INC(val,beg,end) \ |
| 58 | ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) |
79 | ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) |
| … | |
… | |
| 422 | |
443 | |
| 423 | // return a very temporary (and never deallocated) buffer. keep small. |
444 | // return a very temporary (and never deallocated) buffer. keep small. |
| 424 | void *rxvt_temp_buf (int len); |
445 | void *rxvt_temp_buf (int len); |
| 425 | |
446 | |
| 426 | template<typename T> |
447 | template<typename T> |
| 427 | inline T * |
448 | static inline T * |
| 428 | rxvt_temp_buf (int len) |
449 | rxvt_temp_buf (int len) |
| 429 | { |
450 | { |
| 430 | return (T *)rxvt_temp_buf (len * sizeof (T)); |
451 | return (T *)rxvt_temp_buf (len * sizeof (T)); |
| 431 | } |
452 | } |
| 432 | |
453 | |
