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PUBLISHED_FROM=5cd78790a03580aa23dd3d2d8b825ad449083cc2
607 B
607 B
title | decl_name | symbol_kind | signature |
---|---|---|---|
mg_avprintf() | mg_avprintf | func | int mg_avprintf(char **buf, size_t size, const char *fmt, va_list ap); |
Prints message to the buffer. If the buffer is large enough to hold the message, it returns buffer. If buffer is to small, it allocates a large enough buffer on heap and returns allocated buffer. This is a supposed use case:
char buf[5], *p = buf; p = mg_avprintf(&p, sizeof(buf), "%s", "hi there"); use_p_somehow(p); if (p != buf) { free(p); }
The purpose of this is to avoid malloc-ing if generated strings are small.