u64.cpp
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- /**
- * @file u64.cpp
- * @brief Utilities to deal with U64s.
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, 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.
- * $/LicenseInfo$
- */
- #include "linden_common.h"
- #include "u64.h"
- U64 str_to_U64(const std::string& str)
- {
- U64 result = 0;
- const char *aptr = strpbrk(str.c_str(),"0123456789");
- if (!aptr)
- {
- llwarns << "str_to_U64: Bad string to U64 conversion attempt: formatn" << llendl;
- }
- else
- {
- while ((*aptr >= '0') && (*aptr <= '9'))
- {
- result = result*10 + (*aptr++ - '0');
- }
- }
- return (result);
- }
- std::string U64_to_str(U64 value)
- {
- std::string res;
- U32 part1,part2,part3;
-
- part3 = (U32)(value % (U64)10000000);
-
- value /= 10000000;
- part2 = (U32)(value % (U64)10000000);
-
- value /= 10000000;
- part1 = (U32)(value % (U64)10000000);
-
- // three cases to avoid leading zeroes unless necessary
-
- if (part1)
- {
- res = llformat("%u%07u%07u",part1,part2,part3);
- }
- else if (part2)
- {
- res = llformat("%u%07u",part2,part3);
- }
- else
- {
- res = llformat("%u",part3);
- }
- return res;
- }
- char* U64_to_str(U64 value, char* result, S32 result_size)
- {
- std::string res = U64_to_str(value);
- LLStringUtil::copy(result, res.c_str(), result_size);
- return result;
- }
- F64 U64_to_F64(const U64 value)
- {
- S64 top_bits = (S64)(value >> 1);
- F64 result = (F64)top_bits;
- result *= 2.f;
- result += (U32)(value & 0x01);
- return result;
- }
- U64 llstrtou64(const char* str, char** end, S32 base)
- {
- #ifdef LL_WINDOWS
- return _strtoui64(str,end,base);
- #else
- return strtoull(str,end,base);
- #endif
- }