1 | #ifndef RXVT_UTIL_H |
1 | #ifndef RXVT_UTIL_H |
2 | #define RXVT_UTIL_H |
2 | #define RXVT_UTIL_H |
3 | |
3 | |
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4 | #include <cstdlib> |
4 | #include <cstring> |
5 | #include <cstring> |
5 | |
6 | |
6 | #define PP_CONCAT_(a, b) a ## b |
7 | #define PP_CONCAT_(a, b) a ## b |
7 | #define PP_CONCAT(a, b) PP_CONCAT_(a, b) |
8 | #define PP_CONCAT(a, b) PP_CONCAT_(a, b) |
8 | #define PP_STRINGIFY_(a) #a |
9 | #define PP_STRINGIFY_(a) #a |
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27 | |
28 | |
28 | 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; } |
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; } |
29 | 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; } |
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; } |
30 | |
31 | |
31 | template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } |
32 | template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } |
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33 | |
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34 | // linear interpolation |
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35 | template<typename T, typename U, typename P> |
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36 | static inline |
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37 | T lerp (T a, U b, P p) |
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38 | { |
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39 | return (int(a) * int(p) + int(b) * int(100 - p)) / 100; |
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40 | } |
32 | |
41 | |
33 | // in range including end |
42 | // in range including end |
34 | #define IN_RANGE_INC(val,beg,end) \ |
43 | #define IN_RANGE_INC(val,beg,end) \ |
35 | ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) |
44 | ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) |
36 | |
45 | |
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391 | struct stringvec : simplevec<char *> |
400 | struct stringvec : simplevec<char *> |
392 | { |
401 | { |
393 | ~stringvec () |
402 | ~stringvec () |
394 | { |
403 | { |
395 | for (char **c = begin (); c != end (); c++) |
404 | for (char **c = begin (); c != end (); c++) |
396 | delete [] *c; |
405 | free (*c); |
397 | } |
406 | } |
398 | }; |
407 | }; |
399 | |
408 | |
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409 | // return a very temporary (and never deallocated) buffer. keep small. |
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410 | void *rxvt_temp_buf (int len); |
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411 | |
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412 | template<typename T> |
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413 | inline T * |
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414 | rxvt_temp_buf (int len) |
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415 | { |
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416 | return (T *)rxvt_temp_buf (len * sizeof (T)); |
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417 | } |
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418 | |
400 | #endif |
419 | #endif |
401 | |
420 | |