C++ (Cpp) p_vsnprintf示例

示例#1

文件： filebuf.c 项目： spritetong/tortoisegit-libgit2-utf8

int git_filebuf_printf(git_filebuf *file, const char *format, ...)
{
	va_list arglist;
	size_t space_left;
	int len, res;
	char *tmp_buffer;

	ENSURE_BUF_OK(file);

	space_left = file->buf_size - file->buf_pos;

	do {
		va_start(arglist, format);
		len = p_vsnprintf((char *)file->buffer + file->buf_pos, space_left, format, arglist);
		va_end(arglist);

		if (len < 0) {
			file->last_error = BUFERR_MEM;
			return -1;
		}

		if ((size_t)len + 1 <= space_left) {
			file->buf_pos += len;
			return 0;
		}

		if (flush_buffer(file) < 0)
			return -1;

		space_left = file->buf_size - file->buf_pos;

	} while ((size_t)len + 1 <= space_left);

	tmp_buffer = git__malloc(len + 1);
	if (!tmp_buffer) {
		file->last_error = BUFERR_MEM;
		return -1;
	}

	va_start(arglist, format);
	len = p_vsnprintf(tmp_buffer, len + 1, format, arglist);
	va_end(arglist);

	if (len < 0) {
		git__free(tmp_buffer);
		file->last_error = BUFERR_MEM;
		return -1;
	}

	res = git_filebuf_write(file, tmp_buffer, len);
	git__free(tmp_buffer);

	return res;
}

示例#2

文件： posix_w32.c 项目： gitpan/Git-XS

int p_snprintf(char *buffer, size_t count, const char *format, ...)
{
	va_list va;
	int r;

	va_start(va, format);
	r = p_vsnprintf(buffer, count, format, va);
	va_end(va);

	return r;
}