/* -*- 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> 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_ */