… | |
… | |
6 | |
6 | |
7 | #define PP_CONCAT_(a, b) a ## b |
7 | #define PP_CONCAT_(a, b) a ## b |
8 | #define PP_CONCAT(a, b) PP_CONCAT_(a, b) |
8 | #define PP_CONCAT(a, b) PP_CONCAT_(a, b) |
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 | |
|
|
12 | // actually, some gcc-3.x versions work, too |
|
|
13 | #define HAVE_GCC_BUILTINS (__GNUC__ >= 4) |
|
|
14 | |
|
|
15 | #ifndef __attribute__ |
|
|
16 | # if __GNUC__ |
|
|
17 | # if (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || (__GNUC__ < 2) |
|
|
18 | # define __attribute__(x) |
|
|
19 | # endif |
|
|
20 | # endif |
|
|
21 | # define __attribute__(x) |
|
|
22 | #endif |
|
|
23 | |
|
|
24 | #define NORETURN __attribute__ ((noreturn)) |
|
|
25 | #define UNUSED __attribute__ ((unused)) |
|
|
26 | #define CONST __attribute__ ((const)) |
|
|
27 | |
|
|
28 | // increases code size unless -fno-enforce-eh-specs |
|
|
29 | #if __GNUC__ |
|
|
30 | # define NOTHROW |
|
|
31 | # define THROW(x) |
|
|
32 | #else |
|
|
33 | # define NOTHROW throw() |
|
|
34 | # define THROW(x) throw x |
|
|
35 | #endif |
11 | |
36 | |
12 | extern class byteorder { |
37 | extern class byteorder { |
13 | static unsigned int e; // at least 32 bits |
38 | static unsigned int e; // at least 32 bits |
14 | public: |
39 | public: |
15 | byteorder (); |
40 | byteorder (); |
… | |
… | |
28 | |
53 | |
29 | template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? a : v >(T)b ? b : v; } |
54 | template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? a : v >(T)b ? b : v; } |
30 | template<typename T, typename U, typename V> static inline void clamp_it (T &v, U a, V b) { v = v < (T)a ? a : v >(T)b ? b : v; } |
55 | template<typename T, typename U, typename V> static inline void clamp_it (T &v, U a, V b) { v = v < (T)a ? a : v >(T)b ? b : v; } |
31 | |
56 | |
32 | template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } |
57 | template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } |
|
|
58 | |
|
|
59 | template<typename T> static inline T squared_diff (T a, T b) { return (a-b)*(a-b); } |
|
|
60 | |
|
|
61 | // linear interpolation |
|
|
62 | template<typename T, typename U, typename P> |
|
|
63 | static inline |
|
|
64 | T lerp (T a, U b, P p) |
|
|
65 | { |
|
|
66 | return (long(a) * long(100 - p) + long(b) * long(p) + 50) / 100; |
|
|
67 | } |
|
|
68 | |
|
|
69 | // some bit functions, xft fuck me plenty |
|
|
70 | #if HAVE_GCC_BUILTINS |
|
|
71 | static inline int ctz (unsigned int x) CONST { return __builtin_ctz (x); } |
|
|
72 | static inline int popcount (unsigned int x) CONST { return __builtin_popcount (x); } |
|
|
73 | #else |
|
|
74 | // count trailing zero bits and count # of one bits |
|
|
75 | int ctz (unsigned int x) CONST; |
|
|
76 | int popcount (unsigned int x) CONST; |
|
|
77 | #endif |
33 | |
78 | |
34 | // in range including end |
79 | // in range including end |
35 | #define IN_RANGE_INC(val,beg,end) \ |
80 | #define IN_RANGE_INC(val,beg,end) \ |
36 | ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) |
81 | ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) |
37 | |
82 | |
… | |
… | |
396 | for (char **c = begin (); c != end (); c++) |
441 | for (char **c = begin (); c != end (); c++) |
397 | free (*c); |
442 | free (*c); |
398 | } |
443 | } |
399 | }; |
444 | }; |
400 | |
445 | |
|
|
446 | // return a very temporary (and never deallocated) buffer. keep small. |
|
|
447 | void *rxvt_temp_buf (int len); |
|
|
448 | |
|
|
449 | template<typename T> |
|
|
450 | static inline T * |
|
|
451 | rxvt_temp_buf (int len) |
|
|
452 | { |
|
|
453 | return (T *)rxvt_temp_buf (len * sizeof (T)); |
|
|
454 | } |
|
|
455 | |
401 | #endif |
456 | #endif |
402 | |
457 | |