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/**
* @file u64.h
* @brief Utilities to deal with U64s.
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#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.
*/
LL_COMMON_API 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.
*/
LL_COMMON_API 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.
*/
LL_COMMON_API char* U64_to_str(U64 value, char* result, S32 result_size);
/**
* @brief Convert a U64 to the closest F64 value.
*/
LL_COMMON_API F64 U64_to_F64(const U64 value);
/**
* @brief Helper function to wrap strtoull() which is not available on windows.
*/
LL_COMMON_API U64 llstrtou64(const char* str, char** end, S32 base);
#endif
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