28 lines
663 B
C
28 lines
663 B
C
#include "util.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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char* format_string_va(const char* fmt, va_list args) {
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if (!fmt) return NULL;
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va_list args_copy;
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va_copy(args_copy, args);
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int needed = vsnprintf(NULL, 0, fmt, args_copy);
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va_end(args_copy);
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if (needed < 0) return NULL;
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char* buf = (char*)malloc((size_t)needed + 1);
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if (!buf) return NULL;
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vsnprintf(buf, (size_t)needed + 1, fmt, args);
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return buf;
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}
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char* format_string(const char* fmt, ...) {
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if (!fmt) return NULL;
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va_list args;
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va_start(args, fmt);
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char* s = format_string_va(fmt, args);
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va_end(args);
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return s;
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}
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