ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/rxvt-unicode/src/rxvtutil.h
(Generate patch)

Comparing rxvt-unicode/src/rxvtutil.h (file contents):
Revision 1.2 by root, Sun Aug 15 07:20:16 2004 UTC vs.
Revision 1.63 by root, Sun Dec 14 04:52:10 2014 UTC

1#ifndef RXVT_UTIL_H 1#ifndef RXVT_UTIL_H
2#define RXVT_UTIL_H 2#define RXVT_UTIL_H
3 3
4extern class byteorder { 4#include <stdlib.h>
5 static unsigned int e; // at least 32 bits 5#include <string.h>
6public: 6#include "ecb.h"
7 byteorder (); 7#include "estl.h"
8 8
9 static bool big_endian () { return e == 0x11223344; }; 9#include "emman.h"
10 static bool network () { return e == 0x11223344; };
11 static bool little_endian () { return e == 0x44332211; };
12 static bool vax () { return e == 0x44332211; };
13} byteorder;
14 10
15template<typename T, typename U> 11// increases code size unless -fno-enforce-eh-specs
16static inline T min (T a, U b) { return a < b ? a : (T)b; } 12#if __GNUC__
17template<typename T, typename U> 13# define NOTHROW
18static inline T max (T a, U b) { return a > b ? a : (T)b; } 14# define THROW(x)
15#else
16# define NOTHROW throw()
17# define THROW(x) throw x
18#endif
19 19
20#include "simplevec.h" 20// various utility functions
21template<typename T, typename U> static inline void min_it (T &a, U b) { a = a < (T)b ? a : (T)b; }
22template<typename T, typename U> static inline void max_it (T &a, U b) { a = a > (T)b ? a : (T)b; }
23
24template<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; }
25template<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; }
26
27// linear interpolation
28template<typename T, typename U, typename P>
29static inline T
30lerp (T a, U b, P p)
31{
32 return (long(a) * long(100 - p) + long(b) * long(p) + 50) / 100;
33}
34
35// return a very temporary (and never deallocated) buffer. keep small.
36void *rxvt_temp_buf (int len);
21 37
22template<typename T> 38template<typename T>
39static inline T *
40rxvt_temp_buf (int len)
41{
42 return (T *)rxvt_temp_buf (len * sizeof (T));
43}
44
45// in range including end
46#define IN_RANGE_INC(val,beg,end) \
47 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg))
48
49// in range excluding end
50#define IN_RANGE_EXC(val,beg,end) \
51 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg))
52
53// for m >= -n, ensure remainder lies between 0..n-1
54#define MOD(m,n) (((m) + (n)) % (n))
55
56// makes dynamically allocated objects zero-initialised
57struct zero_initialized
58{
59 void *operator new (size_t s);
60 void operator delete (void *p, size_t s);
61};
62
23struct vector : simplevec<T> 63struct stringvec : simplevec<char *>
24{ }; 64{
65 ~stringvec ()
66 {
67 for (char **c = begin (); c != end (); c++)
68 free (*c);
69 }
70};
25 71
26#if 0 72#if 0
27template<typename T> 73template<typename T>
28struct rxvt_vec : simplevec<void *> { 74struct rxvt_vec : simplevec<void *>
75{
29 typedef T *iterator; 76 typedef T *iterator;
30 77
31 void push_back (T d) { simplevec<void *>::push_back ((void *)d); } 78 void push_back (T d) { simplevec<void *>::push_back ((void *)d); }
32 T pop_back () { return (T*)simplevec<void *>::pop_back (); } 79 T pop_back () { return (T*)simplevec<void *>::pop_back (); }
33 void erase (int i) { erase (begin () + i); } 80 void erase (int i) { erase (begin () + i); }
… …
37 T &operator [] (int i) { return * (T *) (& ((* (simplevec<void *> *)this)[i])); } 84 T &operator [] (int i) { return * (T *) (& ((* (simplevec<void *> *)this)[i])); }
38 const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); } 85 const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); }
39}; 86};
40#endif 87#endif
41 88
42template <typename I, typename T> 89typedef estl::scoped_array<char> auto_str;
43I find (I first, I last, const T& value)
44{
45 while (first != last && *first != value)
46 ++first;
47 90
48 return first;
49}
50
51template<typename T>
52struct auto_ptr {
53 T *p;
54
55 auto_ptr () : p (0) { }
56 auto_ptr (T *a) : p (a) { }
57
58 auto_ptr (auto_ptr<T> &a)
59 {
60 p = a.p;
61 a.p = 0;
62 }
63
64 template<typename A>
65 auto_ptr (auto_ptr<A> &a)
66 {
67 p = a.p;
68 a.p = 0;
69 }
70
71 ~auto_ptr ()
72 {
73 delete p;
74 }
75
76 // void because it makes sense in our context
77 void operator = (T *a)
78 {
79 delete p;
80 p = a;
81 }
82
83 void operator = (auto_ptr &a)
84 {
85 *this = a.p;
86 a.p = 0;
87 }
88
89 template<typename A>
90 void operator = (auto_ptr<A> &a)
91 {
92 *this = a.p;
93 a.p = 0;
94 }
95
96 operator T * () const { return p; }
97
98 T *operator -> () const { return p; }
99 T &operator * () const { return *p; }
100
101 T *get ()
102 {
103 T *r = p;
104 p = 0;
105 return r;
106 }
107};
108
109typedef auto_ptr<char> auto_str;
110
111struct stringvec : simplevec<char *>
112{
113 ~stringvec ()
114 {
115 for (char **c = begin (); c != end (); c++)
116 delete [] *c;
117 }
118};
119#endif 91#endif
120 92

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines