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1 : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 : /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 : /* This Source Code Form is subject to the terms of the Mozilla Public
4 : * License, v. 2.0. If a copy of the MPL was not distributed with this
5 : * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 :
7 : /* Provides a safer sprintf for printing to fixed-size character arrays. */
8 :
9 : #ifndef mozilla_Sprintf_h_
10 : #define mozilla_Sprintf_h_
11 :
12 : #include <stdio.h>
13 : #include <stdarg.h>
14 :
15 : #include "mozilla/Assertions.h"
16 : #include "mozilla/Attributes.h"
17 :
18 : #ifdef __cplusplus
19 :
20 : template <size_t N>
21 : MOZ_FORMAT_PRINTF(2, 0)
22 826 : int VsprintfLiteral(char (&buffer)[N], const char* format, va_list args)
23 : {
24 826 : MOZ_ASSERT(format != buffer);
25 826 : int result = vsnprintf(buffer, N, format, args);
26 826 : buffer[N - 1] = '\0';
27 826 : return result;
28 : }
29 :
30 : template <size_t N>
31 : MOZ_FORMAT_PRINTF(2, 3)
32 826 : int SprintfLiteral(char (&buffer)[N], const char* format, ...)
33 : {
34 : va_list args;
35 826 : va_start(args, format);
36 826 : int result = VsprintfLiteral(buffer, format, args);
37 826 : va_end(args);
38 826 : return result;
39 : }
40 :
41 : #endif
42 : #endif /* mozilla_Sprintf_h_ */
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