comparison: src/printf.c
src/printf.c
- changeset 810
- 85859399a0cc
- parent 805
- 26500fc24058
- child 811
- b02ad05c7f2d
equal
deleted
inserted
replaced
| 809:b7e2e1d7ed22 | 810:85859399a0cc |
|---|---|
| 125 } | 125 } |
| 126 } | 126 } |
| 127 return s; | 127 return s; |
| 128 } | 128 } |
| 129 | 129 |
| 130 int cx_sprintf_a(CxAllocator *alloc, char **str, size_t len, const char *fmt, ... ) { | |
| 131 va_list ap; | |
| 132 va_start(ap, fmt); | |
| 133 int ret = cx_vsprintf_a(alloc, str, len, fmt, ap); | |
| 134 va_end(ap); | |
| 135 return ret; | |
| 136 } | |
| 137 | |
| 138 int cx_vsprintf_a(CxAllocator *alloc, char **str, size_t len, const char *fmt, va_list ap) { | |
| 139 va_list ap2; | |
| 140 va_copy(ap2, ap); | |
| 141 int ret = vsnprintf(*str, len, fmt, ap); | |
| 142 if (ret < 0 || ((unsigned)ret) < len) { | |
| 143 va_end(ap2); | |
| 144 return ret; | |
| 145 } else { | |
| 146 unsigned newlen = ret + 1; | |
| 147 char *ptr = cxRealloc(alloc, *str, newlen); | |
| 148 if (ptr) { | |
| 149 int newret = vsnprintf(ptr, newlen, fmt, ap2); | |
| 150 va_end(ap2); | |
| 151 if (newret < 0) { | |
| 152 cxFree(alloc, ptr); | |
| 153 return ret; | |
| 154 } else { | |
| 155 *str = ptr; | |
| 156 return newret; | |
| 157 } | |
| 158 } else { | |
| 159 va_end(ap2); | |
| 160 return ret; | |
| 161 } | |
| 162 } | |
| 163 } | |
| 164 | |
| 165 int cx_sprintf_sa(CxAllocator *alloc, char *buf, size_t len, char **str, const char *fmt, ... ) { | |
| 166 va_list ap; | |
| 167 va_start(ap, fmt); | |
| 168 int ret = cx_vsprintf_sa(alloc, buf, len, str, fmt, ap); | |
| 169 va_end(ap); | |
| 170 return ret; | |
| 171 } | |
| 172 | |
| 173 int cx_vsprintf_sa(CxAllocator *alloc, char *buf, size_t len, char **str, const char *fmt, va_list ap) { | |
| 174 va_list ap2; | |
| 175 va_copy(ap2, ap); | |
| 176 int ret = vsnprintf(buf, len, fmt, ap); | |
| 177 *str = buf; | |
| 178 if (ret < 0 || ((unsigned)ret) < len) { | |
| 179 va_end(ap2); | |
| 180 return ret; | |
| 181 } else { | |
| 182 unsigned newlen = ret + 1; | |
| 183 char *ptr = cxMalloc(alloc, newlen); | |
| 184 if (ptr) { | |
| 185 int newret = vsnprintf(ptr, newlen, fmt, ap2); | |
| 186 va_end(ap2); | |
| 187 if (newret < 0) { | |
| 188 cxFree(alloc, ptr); | |
| 189 return ret; | |
| 190 } else { | |
| 191 *str = ptr; | |
| 192 return newret; | |
| 193 } | |
| 194 } else { | |
| 195 va_end(ap2); | |
| 196 return ret; | |
| 197 } | |
| 198 } | |
| 199 } |
