1 // Protocol Buffers - Google's data interchange format
2 // Copyright 2012 Google Inc. All rights reserved.
3 // http://code.google.com/p/protobuf/
5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions are
9 // * Redistributions of source code must retain the above copyright
10 // notice, this list of conditions and the following disclaimer.
11 // * Redistributions in binary form must reproduce the above
12 // copyright notice, this list of conditions and the following disclaimer
13 // in the documentation and/or other materials provided with the
15 // * Neither the name of Google Inc. nor the names of its
16 // contributors may be used to endorse or promote products derived from
17 // this software without specific prior written permission.
19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 // from google3/base/stringprintf.h
33 // Printf variants that place their output in a C++ string.
36 // string result = StringPrintf("%d %s\n", 10, "hello");
37 // SStringPrintf(&result, "%d %s\n", 10, "hello");
38 // StringAppendF(&result, "%d %s\n", 20, "there");
40 #ifndef GOOGLE_PROTOBUF_STUBS_STRINGPRINTF_H
41 #define GOOGLE_PROTOBUF_STUBS_STRINGPRINTF_H
47 #include <google/protobuf/stubs/common.h>
52 // Return a C++ string
53 LIBPROTOBUF_EXPORT extern string StringPrintf(const char* format, ...);
55 // Store result into a supplied string and return it
56 LIBPROTOBUF_EXPORT extern const string& SStringPrintf(string* dst, const char* format, ...);
58 // Append result to a supplied string
59 LIBPROTOBUF_EXPORT extern void StringAppendF(string* dst, const char* format, ...);
61 // Lower-level routine that takes a va_list and appends to a specified
62 // string. All other routines are just convenience wrappers around it.
63 LIBPROTOBUF_EXPORT extern void StringAppendV(string* dst, const char* format, va_list ap);
65 // The max arguments supported by StringPrintfVector
66 LIBPROTOBUF_EXPORT extern const int kStringPrintfVectorMaxArgs;
68 // You can use this version when all your arguments are strings, but
69 // you don't know how many arguments you'll have at compile time.
70 // StringPrintfVector will LOG(FATAL) if v.size() > kStringPrintfVectorMaxArgs
71 LIBPROTOBUF_EXPORT extern string StringPrintfVector(const char* format, const vector<string>& v);
73 } // namespace protobuf
76 #endif // GOOGLE_PROTOBUF_STUBS_STRINGPRINTF_H