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/**
* @file u64.h
* @brief Utilities to deal with U64s.
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2008, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#ifndef LL_U64_H
#define LL_U64_H
/**
* @brief Forgivingly parse a null terminated character array.
*
* @param str The string to parse.
* @return Returns the first U64 value found in the string or 0 on failure.
*/
U64 str_to_U64(const std::string& str);
/**
* @brief Given a U64 value, return a printable representation.
* @param value The U64 to turn into a printable character array.
* @return Returns the result string.
*/
std::string U64_to_str(U64 value);
/**
* @brief Given a U64 value, return a printable representation.
*
* The client of this function is expected to provide an allocated
* buffer. The function then snprintf() into that buffer, so providing
* NULL has undefined behavior. Providing a buffer which is too small
* will truncate the printable value, so usually you want to declare
* the buffer:
*
* char result[U64_BUF];
* std::cout << "value: " << U64_to_str(value, result, U64_BUF);
*
* @param value The U64 to turn into a printable character array.
* @param result The buffer to use
* @param result_size The size of the buffer allocated. Use U64_BUF.
* @return Returns the result pointer.
*/
char* U64_to_str(U64 value, char* result, S32 result_size);
/**
* @brief Convert a U64 to the closest F64 value.
*/
F64 U64_to_F64(const U64 value);
/**
* @brief Helper function to wrap strtoull() which is not available on windows.
*/
U64 llstrtou64(const char* str, char** end, S32 base);
#endif
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