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No need to loop to increase buffer size when snprintf() tells me exactly how much space I need.

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modified:   src/nms.c
This commit is contained in:
Brian Barto 2016-04-18 14:51:16 -04:00
parent 9b5471838a
commit 4ccde16721
1 changed files with 5 additions and 6 deletions
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11
src/nms.c
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@ -52,15 +52,14 @@ char getMaskChar(void);
* const char *format - printf-style format string * const char *format - printf-style format string
*/ */
void nmsprintf(const char *format, ...) { void nmsprintf(const char *format, ...) {
int bufferSize = PRINT_BUFFER; char *nmsprintBuffer = malloc(PRINT_BUFFER);
int bufferIncrementSize = PRINT_BUFFER; int fmtSize;
char *nmsprintBuffer = malloc(bufferSize);
va_list argp; va_list argp;
va_start(argp, format); va_start(argp, format);
while (vsnprintf(nmsprintBuffer, bufferSize, format, argp) >= bufferSize) { if ((fmtSize = vsnprintf(nmsprintBuffer, PRINT_BUFFER, format, argp)) >= PRINT_BUFFER) {
bufferSize += bufferIncrementSize; nmsprintBuffer = realloc(nmsprintBuffer, fmtSize + 1);
nmsprintBuffer = realloc(nmsprintBuffer, bufferSize); vsnprintf(nmsprintBuffer, fmtSize + 1, format, argp);
} }
va_end(argp); va_end(argp);