| // Copyright 2019 The Cobalt Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // Module Overview: Starboard String module |
| // |
| // Move the definition of FormatString from string.h to this header to break |
| // the dependency between string.h and standard header <string>. |
| |
| #ifndef STARBOARD_FORMAT_STRING_H_ |
| #define STARBOARD_FORMAT_STRING_H_ |
| |
| #include "starboard/string.h" |
| |
| #if SB_API_VERSION >= SB_MOVE_FORMAT_STRING_VERSION |
| #ifdef __cplusplus |
| |
| extern "C++" { |
| |
| #include <string> |
| #include <vector> |
| |
| namespace starboard { |
| |
| SB_C_INLINE std::string FormatString(const char* format, ...) |
| SB_PRINTF_FORMAT(1, 2); |
| |
| SB_C_INLINE std::string FormatString(const char* format, ...) { |
| va_list arguments; |
| va_start(arguments, format); |
| int expected_size = ::SbStringFormat(NULL, 0, format, arguments); |
| va_end(arguments); |
| |
| std::string result; |
| if (expected_size <= 0) { |
| return result; |
| } |
| |
| std::vector<char> buffer(expected_size + 1); |
| va_start(arguments, format); |
| ::SbStringFormat(buffer.data(), buffer.size(), format, arguments); |
| va_end(arguments); |
| return std::string(buffer.data(), expected_size); |
| } |
| |
| } // namespace starboard |
| |
| } // extern "C++" |
| |
| #endif // __cplusplus |
| |
| #endif // SB_API_VERSION >= SB_MOVE_FORMAT_STRING_VERSION |
| |
| #endif // STARBOARD_FORMAT_STRING_H_ |