blob: 04806dde93df1e57481d5ffc26bf0885585a58ce (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
|
#include "utils.h"
// Compute the size needed (including \0) to format given message
size_t printf_len(const char *msg, ...) {
va_list args;
va_start(args, msg);
size_t result = vsnprintf(NULL, 0, msg, args);
va_end(args);
return result + 1;
}
// Like sprintf, but returs the string. Expects there's enough space.
char *printf_into(char *dst, const char *msg, ...) {
va_list args;
va_start(args, msg);
vsprintf(dst, msg, args);
va_end(args);
return dst;
}
|
