ReactOS 0.4.15-dev-7931-gfd331f1
num_put.cpp
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1/*
2 * Copyright (c) 1999
3 * Silicon Graphics Computer Systems, Inc.
4 *
5 * Copyright (c) 1999
6 * Boris Fomitchev
7 *
8 * This material is provided "as is", with absolutely no warranty expressed
9 * or implied. Any use is at your own risk.
10 *
11 * Permission to use or copy this software for any purpose is hereby granted
12 * without fee, provided the above notices are retained on all copies.
13 * Permission to modify the code and to distribute modified code is granted,
14 * provided the above notices are retained, and a notice that the code was
15 * modified is included with the above copyright notice.
16 *
17 */
18
19#include "stlport_prefix.h"
20
21#include <locale>
22#include <ostream>
23
25
26// Note that grouping[0] is the number of digits in the *rightmost* group.
27// We assume, without checking, that *last is null and that there is enough
28// space in the buffer to extend the number past [first, last).
29template <class Char>
30static ptrdiff_t
31__insert_grouping_aux(Char* first, Char* last, const string& grouping,
32 Char separator, Char Plus, Char Minus,
33 int basechars) {
34 typedef string::size_type str_size;
35
36 if (first == last)
37 return 0;
38
39 int sign = 0;
40
41 if (*first == Plus || *first == Minus) {
42 sign = 1;
43 ++first;
44 }
45
46 first += basechars;
47 Char* cur_group = last; // Points immediately beyond the rightmost
48 // digit of the current group.
49 int groupsize = 0; // Size of the current group (if grouping.size() == 0, size
50 // of group unlimited: we force condition (groupsize <= 0))
51
52 for ( str_size n = 0; ; ) { // Index of the current group
53 if ( n < grouping.size() ) {
54 groupsize = __STATIC_CAST(int, grouping[n++] );
55 }
56
57 if ((groupsize <= 0) || (groupsize >= cur_group - first) || (groupsize == CHAR_MAX)) {
58 break;
59 }
60
61 // Insert a separator character just before position cur_group - groupsize
62 cur_group -= groupsize;
63 ++last;
64 copy_backward(cur_group, last, last + 1);
65 *cur_group = separator;
66 }
67
68 return (last - first) + sign + basechars;
69}
70
71//Dynamic output buffer version.
72template <class Char, class Str>
73static void
74__insert_grouping_aux( /* __basic_iostring<Char> */ Str& iostr, size_t __group_pos,
75 const string& grouping,
76 Char separator, Char Plus, Char Minus,
77 int basechars) {
78 typedef string::size_type str_size;
79
80 if (iostr.size() < __group_pos)
81 return;
82
83 int __first_pos = 0;
84 Char __first = *iostr.begin();
85
86 if (__first == Plus || __first == Minus) {
87 ++__first_pos;
88 }
89
90 __first_pos += basechars;
91
92 typename Str::iterator cur_group(iostr.begin() + __group_pos); // Points immediately beyond the rightmost
93 // digit of the current group.
94 int groupsize = 0; // Size of the current group (if grouping.size() == 0, size
95 // of group unlimited: we force condition (groupsize <= 0))
96
97 for ( str_size n = 0; ; ) { // Index of the current group
98 if ( n < grouping.size() ) {
99 groupsize = __STATIC_CAST( int, grouping[n++] );
100 }
101
102 if ( (groupsize <= 0) || (groupsize >= ((cur_group - iostr.begin()) - __first_pos)) ||
103 (groupsize == CHAR_MAX)) {
104 break;
105 }
106
107 // Insert a separator character just before position cur_group - groupsize
108 cur_group -= groupsize;
109 cur_group = iostr.insert(cur_group, separator);
110 }
111}
112
113//----------------------------------------------------------------------
114// num_put
115
117
119{ return "0123456789abcdefx"; }
120
122{ return "0123456789ABCDEFX"; }
123
124char* _STLP_CALL
126 char tmp[64];
127 char* bufend = tmp+64;
128 char* beg = __write_integer_backward(bufend, flags, x);
129 return copy(beg, bufend, buf);
130}
131
133
135__insert_grouping(char * first, char * last, const string& grouping,
136 char separator, char Plus, char Minus, int basechars) {
137 return __insert_grouping_aux(first, last, grouping,
138 separator, Plus, Minus, basechars);
139}
140
141void _STLP_CALL
142__insert_grouping(__iostring &str, size_t group_pos, const string& grouping,
143 char separator, char Plus, char Minus, int basechars) {
144 __insert_grouping_aux(str, group_pos, grouping, separator, Plus, Minus, basechars);
145}
146
147#if !defined (_STLP_NO_WCHAR_T)
149__insert_grouping(wchar_t* first, wchar_t* last, const string& grouping,
150 wchar_t separator, wchar_t Plus, wchar_t Minus,
151 int basechars) {
152 return __insert_grouping_aux(first, last, grouping, separator,
153 Plus, Minus, basechars);
154}
155
156void _STLP_CALL
157__insert_grouping(__iowstring &str, size_t group_pos, const string& grouping,
158 wchar_t separator, wchar_t Plus, wchar_t Minus,
159 int basechars) {
160 __insert_grouping_aux(str, group_pos, grouping, separator, Plus, Minus, basechars);
161}
162#endif
163
165
166//----------------------------------------------------------------------
167// Force instantiation of num_put<>
168#if !defined(_STLP_NO_FORCE_INSTANTIATE)
170// template class num_put<char, char*>;
172# ifndef _STLP_NO_WCHAR_T
175// template class num_put<wchar_t, wchar_t*>;
176# endif /* INSTANTIATE_WIDE_STREAMS */
177#endif
178
180
181// Local Variables:
182// mode:C++
183// End:
_STLP_MOVE_TO_STD_NAMESPACE _OutputIter copy_backward(_InputIter __first, _InputIter __last, _OutputIter __result)
Definition: _algobase.h:328
#define _STLP_CALL
Definition: _bc.h:131
char *_STLP_CALL __write_integer_backward(char *__buf, ios_base::fmtflags __flags, _Integer __x)
Definition: _num_put.c:304
INT copy(TCHAR source[MAX_PATH], TCHAR dest[MAX_PATH], INT append, DWORD lpdwFlags, BOOL bTouch)
Definition: copy.c:51
size_type size() const
Definition: _string.h:400
int fmtflags
Definition: _ios_base.h:57
static const WCHAR separator[]
Definition: asmname.c:65
__kernel_ptrdiff_t ptrdiff_t
Definition: linux.h:247
#define _STLP_MOVE_TO_STD_NAMESPACE
Definition: features.h:525
#define __STATIC_CAST(__x, __y)
Definition: features.h:585
#define _STLP_CLASS_DECLSPEC
Definition: features.h:983
#define _STLP_BEGIN_NAMESPACE
Definition: features.h:501
#define _STLP_END_NAMESPACE
Definition: features.h:503
#define _STLP_DECLSPEC
Definition: features.h:982
#define _STLP_MOVE_TO_PRIV_NAMESPACE
Definition: features.h:524
GLint GLint GLint GLint GLint x
Definition: gl.h:1548
GLdouble n
Definition: glext.h:7729
GLenum GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
GLbitfield flags
Definition: glext.h:7161
const GLint * first
Definition: glext.h:5794
#define CHAR_MAX
Definition: limits.h:32
#define sign(x)
Definition: mapdesc.cc:613
static UINT UINT last
Definition: font.c:45
_STLP_DECLSPEC const char *_STLP_CALL __hex_char_table_hi()
Definition: num_put.cpp:121
_STLP_MOVE_TO_PRIV_NAMESPACE _STLP_DECLSPEC const char *_STLP_CALL __hex_char_table_lo()
Definition: num_put.cpp:118
ptrdiff_t _STLP_CALL __insert_grouping(char *first, char *last, const string &grouping, char separator, char Plus, char Minus, int basechars)
Definition: num_put.cpp:135
char *_STLP_CALL __write_integer(char *buf, ios_base::fmtflags flags, long x)
Definition: num_put.cpp:125
static _STLP_BEGIN_NAMESPACE ptrdiff_t __insert_grouping_aux(Char *first, Char *last, const string &grouping, Char separator, Char Plus, Char Minus, int basechars)
Definition: num_put.cpp:31
const WCHAR * str