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39 lines
1.1 KiB
39 lines
1.1 KiB
// Copyright 2015 Google Inc. All rights reserved |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// +build ignore |
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#include "stringprintf.h" |
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#include <assert.h> |
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#include <stdarg.h> |
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string StringPrintf(const char* format, ...) { |
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string str; |
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str.resize(128); |
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for (int i = 0; i < 2; i++) { |
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va_list args; |
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va_start(args, format); |
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int ret = vsnprintf(&str[0], str.size(), format, args); |
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va_end(args); |
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assert(ret >= 0); |
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if (static_cast<size_t>(ret) < str.size()) { |
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str.resize(ret); |
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return str; |
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} |
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str.resize(ret + 1); |
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} |
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assert(false); |
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__builtin_unreachable(); |
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}
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