mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-27 06:43:32 +00:00
73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef nsPrintfCString_h___
|
|
#define nsPrintfCString_h___
|
|
|
|
#include "nsString.h"
|
|
|
|
/**
|
|
* nsPrintfCString lets you create a nsCString using a printf-style format
|
|
* string. For example:
|
|
*
|
|
* NS_WARNING(nsPrintfCString("Unexpected value: %f", 13.917).get());
|
|
*
|
|
* nsPrintfCString has a small built-in auto-buffer. For larger strings, it
|
|
* will allocate on the heap.
|
|
*
|
|
* See also nsCString::AppendPrintf().
|
|
*/
|
|
class nsPrintfCString : public nsAutoCStringN<16> {
|
|
typedef nsCString string_type;
|
|
|
|
public:
|
|
explicit nsPrintfCString(const char_type* aFormat, ...)
|
|
MOZ_FORMAT_PRINTF(2, 3) {
|
|
va_list ap;
|
|
va_start(ap, aFormat);
|
|
AppendVprintf(aFormat, ap);
|
|
va_end(ap);
|
|
}
|
|
};
|
|
|
|
template <>
|
|
struct fmt::formatter<nsPrintfCString, char> : fmt::formatter<nsCString, char> {
|
|
};
|
|
|
|
/**
|
|
*
|
|
*
|
|
* nsVPrintfCString is like nsPrinfCString but is created using vprintf style
|
|
* args. This is useful for functions that have already received variadic
|
|
* arguments and want to create a nsPrintfCString. For example:
|
|
*
|
|
* void LogToSeveralLocations(const char* aFormat,...) {
|
|
* va_list ap;
|
|
* va_start(ap, aFormat);
|
|
* nsPrintfCString logString(aFormat, ap);
|
|
* va_end(ap);
|
|
* // Use logString
|
|
* }
|
|
*
|
|
* See also nsCString::AppendVprintf().
|
|
*/
|
|
|
|
class nsVprintfCString : public nsAutoCStringN<16> {
|
|
typedef nsCString string_type;
|
|
|
|
public:
|
|
nsVprintfCString(const char_type* aFormat, va_list aArgs)
|
|
MOZ_FORMAT_PRINTF(2, 0) {
|
|
AppendVprintf(aFormat, aArgs);
|
|
}
|
|
};
|
|
|
|
template <>
|
|
struct fmt::formatter<nsVprintfCString, char>
|
|
: fmt::formatter<nsCString, char> {};
|
|
|
|
#endif // !defined(nsPrintfCString_h___)
|