42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
/*
|
|
* Copyright 2020 The WebRTC Project Authors. All rights reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#include <cstdarg>
|
|
|
|
#include "rtc_base/strings/string_format.h"
|
|
|
|
#include "rtc_base/checks.h"
|
|
|
|
namespace rtc {
|
|
|
|
namespace {
|
|
|
|
// This is an arbitrary limitation that can be changed if necessary, or removed
|
|
// if someone has the time and inclination to replicate the fancy logic from
|
|
// Chromium's base::StringPrinf().
|
|
constexpr int kMaxSize = 512;
|
|
|
|
} // namespace
|
|
|
|
std::string StringFormat(const char* fmt, ...) {
|
|
char buffer[kMaxSize];
|
|
va_list args;
|
|
va_start(args, fmt);
|
|
int result = vsnprintf(buffer, kMaxSize, fmt, args);
|
|
va_end(args);
|
|
RTC_DCHECK_GE(result, 0) << "ERROR: vsnprintf() failed with error " << result;
|
|
RTC_DCHECK_LT(result, kMaxSize)
|
|
<< "WARNING: string was truncated from " << result << " to "
|
|
<< (kMaxSize - 1) << " characters";
|
|
return std::string(buffer);
|
|
}
|
|
|
|
} // namespace rtc
|