418a8c2c83
Bug: webrtc:42232595 Change-Id: I208257358150eeb97304946929649414af5eb2ca Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/377542 Commit-Queue: Evan Shrubsole <eshr@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#43915}
42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
/*
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* Copyright 2020 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "rtc_base/strings/string_format.h"
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#include <cstdarg>
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#include "rtc_base/checks.h"
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namespace webrtc {
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namespace {
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// This is an arbitrary limitation that can be changed if necessary, or removed
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// if someone has the time and inclination to replicate the fancy logic from
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// Chromium's base::StringPrinf().
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constexpr int kMaxSize = 512;
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} // namespace
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std::string StringFormat(const char* fmt, ...) {
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char buffer[kMaxSize];
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va_list args;
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va_start(args, fmt);
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int result = vsnprintf(buffer, kMaxSize, fmt, args);
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va_end(args);
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RTC_DCHECK_GE(result, 0) << "ERROR: vsnprintf() failed with error " << result;
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RTC_DCHECK_LT(result, kMaxSize)
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<< "WARNING: string was truncated from " << result << " to "
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<< (kMaxSize - 1) << " characters";
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return std::string(buffer);
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}
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} // namespace webrtc
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