From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- xpcom/string/nsPrintfCString.h | 64 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 xpcom/string/nsPrintfCString.h (limited to 'xpcom/string/nsPrintfCString.h') diff --git a/xpcom/string/nsPrintfCString.h b/xpcom/string/nsPrintfCString.h new file mode 100644 index 0000000000..f722888705 --- /dev/null +++ b/xpcom/string/nsPrintfCString.h @@ -0,0 +1,64 @@ +/* -*- 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___) -- cgit v1.2.3