Function string_append

StereoKitC/libraries/stref.cpp:32–55

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char *string_append(char *aBase, uint32_t aCount, ...) {
	size_t baseSize = aBase == nullptr? 0 : strlen(aBase);

	size_t  addSize = 0;
	va_list args;
	va_start(args, aCount);
	for (uint32_t i = 0; i < aCount; i++) {
		addSize += strlen(va_arg(args, char *));
	}
	va_end(args);

	char *result = (char*)STR_REALLOC(aBase, baseSize + addSize + 1);
	char *curr   = result + baseSize;
	va_start(args, aCount);
	for (uint32_t i = 0; i < aCount; i++) {
		char *arg = va_arg(args, char *);
		size_t len = strlen(arg);
		memcpy(curr, arg, len + 1);
		curr += len;
	}
	va_end(args);

	return result;
}

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