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/* -*- 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);
}
};
/**
*
*
* 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);
}
};
#endif // !defined(nsPrintfCString_h___)
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