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/cvs/rxvt-unicode/src/rxvtutil.h
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Comparing rxvt-unicode/src/rxvtutil.h (file contents):
Revision 1.24 by root, Mon Jan 30 16:12:58 2006 UTC vs.
Revision 1.29 by ayin, Wed Oct 31 09:55:24 2007 UTC

1#ifndef RXVT_UTIL_H 1#ifndef RXVT_UTIL_H
2#define RXVT_UTIL_H 2#define RXVT_UTIL_H
3 3
4#include <cstdlib> 4#include <cstdlib>
5#include <cstring> 5#include <cstring>
6
7using namespace std;
6 8
7#define PP_CONCAT_(a, b) a ## b 9#define PP_CONCAT_(a, b) a ## b
8#define PP_CONCAT(a, b) PP_CONCAT_(a, b) 10#define PP_CONCAT(a, b) PP_CONCAT_(a, b)
9#define PP_STRINGIFY_(a) #a 11#define PP_STRINGIFY_(a) #a
10#define PP_STRINGIFY(a) PP_STRINGIFY_(a) 12#define PP_STRINGIFY(a) PP_STRINGIFY_(a)
11 13
12// actually, some gcc-3.x versions work, too 14#define HAVE_GCC_BUILTINS (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ == 4))
13#define HAVE_GCC_BUILTINS (__GNUC__ >= 4)
14 15
15#ifndef __attribute__ 16#ifndef __attribute__
16# if __GNUC__ 17# if __GNUC__
17# if (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || (__GNUC__ < 2) 18# if (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || (__GNUC__ < 2)
18# define __attribute__(x) 19# define __attribute__(x)
… …
54template<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; } 55template<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; }
55template<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; } 56template<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; }
56 57
57template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } 58template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; }
58 59
60template<typename T> static inline T squared_diff (T a, T b) { return (a-b)*(a-b); }
61
59// linear interpolation 62// linear interpolation
60template<typename T, typename U, typename P> 63template<typename T, typename U, typename P>
61static inline 64static inline
62T lerp (T a, U b, P p) 65T lerp (T a, U b, P p)
63{ 66{
64 return (int(a) * int(p) + int(b) * int(100 - p)) / 100; 67 return (long(a) * long(100 - p) + long(b) * long(p) + 50) / 100;
65} 68}
66 69
67// some bit functions, xft fuck me plenty 70// some bit functions, xft fuck me plenty
68#if HAVE_GCC_BUILTINS 71#if HAVE_GCC_BUILTINS
69static inline int ctz (unsigned int x) CONST { return __builtin_ctz (x); } 72static inline int ctz (unsigned int x) CONST { return __builtin_ctz (x); }
… …
87 void *operator new (size_t s); 90 void *operator new (size_t s);
88 void operator delete (void *p, size_t s); 91 void operator delete (void *p, size_t s);
89}; 92};
90 93
91/* simplevec taken (and heavily modified), from: 94/* simplevec taken (and heavily modified), from:
92 * 95 *
93 * MICO --- a free CORBA implementation 96 * MICO --- a free CORBA implementation
94 * Copyright (C) 1997-98 Kay Roemer & Arno Puder 97 * Copyright (C) 1997-98 Kay Roemer & Arno Puder
95 */ 98 */
96template<class T> 99template<class T>
97struct simplevec { 100struct simplevec {

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