/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/* Provides a safer sprintf for printing to fixed-size character arrays. */

#ifndef mozilla_Sprintf_h_

#define mozilla_Sprintf_h_

#include <stdio.h>

#include <stdarg.h>

#include "mozilla/Assertions.h"

#include "mozilla/Attributes.h"

#ifdef __cplusplus

template <size_t N>

MOZ_FORMAT_PRINTF(2, 0)

int VsprintfLiteral(char (&buffer)[N], const char* format, va_list args) {

  MOZ_ASSERT(format != buffer);

  int result = vsnprintf(buffer, N, format, args);

  buffer[N - 1] = '\0';

  return result;

}

template <size_t N>

MOZ_FORMAT_PRINTF(2, 3)

int SprintfLiteral(char (&buffer)[N], const char* format, ...) {

  va_list args;

  va_start(args, format);

  int result = VsprintfLiteral(buffer, format, args);

  va_end(args);

  return result;

}

#endif

#endif /* mozilla_Sprintf_h_ */