81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
/**
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* @file u64.h
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* @brief Utilities to deal with U64s.
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*
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* $LicenseInfo:firstyear=2001&license=viewergpl$
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*
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* Copyright (c) 2001-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#ifndef LL_U64_H
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#define LL_U64_H
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/**
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* @brief Forgivingly parse a null terminated character array.
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*
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* @param str The string to parse.
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* @return Returns the first U64 value found in the string or 0 on failure.
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*/
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LL_COMMON_API U64 str_to_U64(const std::string& str);
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/**
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* @brief Given a U64 value, return a printable representation.
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* @param value The U64 to turn into a printable character array.
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* @return Returns the result string.
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*/
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LL_COMMON_API std::string U64_to_str(U64 value);
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/**
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* @brief Given a U64 value, return a printable representation.
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*
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* The client of this function is expected to provide an allocated
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* buffer. The function then snprintf() into that buffer, so providing
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* NULL has undefined behavior. Providing a buffer which is too small
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* will truncate the printable value, so usually you want to declare
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* the buffer:
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*
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* char result[U64_BUF];
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* std::cout << "value: " << U64_to_str(value, result, U64_BUF);
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*
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* @param value The U64 to turn into a printable character array.
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* @param result The buffer to use
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* @param result_size The size of the buffer allocated. Use U64_BUF.
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* @return Returns the result pointer.
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*/
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LL_COMMON_API char* U64_to_str(U64 value, char* result, S32 result_size);
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/**
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* @brief Convert a U64 to the closest F64 value.
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*/
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LL_COMMON_API F64 U64_to_F64(const U64 value);
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/**
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* @brief Helper function to wrap strtoull() which is not available on windows.
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*/
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LL_COMMON_API U64 llstrtou64(const char* str, char** end, S32 base);
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#endif
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