mirror of
https://github.com/pocoproject/poco.git
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the great line endings cleanup
This commit is contained in:
Guenter Obiltschnig
@@ -1,363 +1,363 @@
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//
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// NumericString.h
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//
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// $Id: //poco/1.4/Foundation/include/Poco/NumericString.h#1 $
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//
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// Library: Foundation
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// Package: Core
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// Module: NumericString
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//
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// Numeric string utility functions.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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||||
// Permission is hereby granted, free of charge, to any person or organization
|
||||
// obtaining a copy of the software and accompanying documentation covered by
|
||||
// this license (the "Software") to use, reproduce, display, distribute,
|
||||
// execute, and transmit the Software, and to prepare derivative works of the
|
||||
// Software, and to permit third-parties to whom the Software is furnished to
|
||||
// do so, all subject to the following:
|
||||
//
|
||||
// The copyright notices in the Software and this entire statement, including
|
||||
// the above license grant, this restriction and the following disclaimer,
|
||||
// must be included in all copies of the Software, in whole or in part, and
|
||||
// all derivative works of the Software, unless such copies or derivative
|
||||
// works are solely in the form of machine-executable object code generated by
|
||||
// a source language processor.
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||||
//
|
||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
|
||||
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
|
||||
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
|
||||
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
// DEALINGS IN THE SOFTWARE.
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||||
//
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||||
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#ifndef Foundation_NumericString_INCLUDED
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#define Foundation_NumericString_INCLUDED
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#include "Poco/Foundation.h"
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#include "Poco/FPEnvironment.h"
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#ifdef min
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#undef min
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#endif
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#ifdef max
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#undef max
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#endif
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#include <limits>
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#include <cmath>
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#if !defined(POCO_NO_LOCALE)
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#include <locale>
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#endif
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namespace Poco {
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inline char decimalSeparator()
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/// Returns decimal separator from global locale or
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/// default '.' for platforms where locale is unavailable.
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{
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#if !defined(POCO_NO_LOCALE)
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return std::use_facet<std::numpunct<char> >(std::locale()).decimal_point();
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#else
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return '.';
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#endif
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}
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inline char thousandSeparator()
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/// Returns thousand separator from global locale or
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/// default ',' for platforms where locale is unavailable.
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{
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#if !defined(POCO_NO_LOCALE)
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return std::use_facet<std::numpunct<char> >(std::locale()).thousands_sep();
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#else
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return ',';
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#endif
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}
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template <typename I>
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bool strToInt(const char* pStr, I& result, short base, char thSep = ',')
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/// Converts zero-terminated character array to integer number;
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/// Thousand separators are recognized for base10 and current locale;
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/// it is silently skipped but not verified for correct positioning.
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/// Function returns true if succesful. If parsing was unsuccesful,
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/// the return value is false with the result value undetermined.
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{
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if (!pStr) return false;
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while (isspace(*pStr)) ++pStr;
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if (*pStr == '\0') return false;
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char sign = 1;
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if ((base == 10) && (*pStr == '-'))
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{
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sign = -1;
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++pStr;
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}
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else if (*pStr == '+') ++pStr;
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// parser states:
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const char STATE_SIGNIFICANT_DIGITS = 1;
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char state = 0;
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result = 0;
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I limitCheck = std::numeric_limits<I>::max() / base;
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for (; *pStr != '\0'; ++pStr)
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{
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switch (*pStr)
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{
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case 'x': case 'X':
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if (base != 0x10) return false;
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case '0':
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if (state < STATE_SIGNIFICANT_DIGITS) break;
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case '1': case '2': case '3': case '4':
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case '5': case '6': case '7':
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if (state < STATE_SIGNIFICANT_DIGITS) state = STATE_SIGNIFICANT_DIGITS;
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if (result > limitCheck) return false;
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result = result * base + (*pStr - '0');
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break;
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case '8': case '9':
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if ((base == 10) || (base == 0x10))
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{
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if (state < STATE_SIGNIFICANT_DIGITS) state = STATE_SIGNIFICANT_DIGITS;
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if (result > limitCheck) return false;
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result = result * base + (*pStr - '0');
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}
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else return false;
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break;
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case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
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if (base != 0x10) return false;
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if (state < STATE_SIGNIFICANT_DIGITS) state = STATE_SIGNIFICANT_DIGITS;
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if (result > limitCheck) return false;
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result = result * base + (10 + *pStr - 'a');
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break;
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case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
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if (base != 0x10) return false;
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if (state < STATE_SIGNIFICANT_DIGITS) state = STATE_SIGNIFICANT_DIGITS;
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if (result > limitCheck) return false;
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result = result * base + (10 + *pStr - 'A');
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break;
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case 'U':
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case 'u':
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case 'L':
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case 'l':
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goto done;
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case '.':
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if ((base == 10) && (thSep == '.')) break;
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else return false;
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case ',':
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if ((base == 10) && (thSep == ',')) break;
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else return false;
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case ' ':
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if ((base == 10) && (thSep == ' ')) break;
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case '\t':
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case '\n':
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case '\v':
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case '\f':
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case '\r':
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goto done;
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default:
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return false;
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}
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}
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done:
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if ((sign < 0) && (base == 10)) result *= sign;
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return true;
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}
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template <typename I>
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bool strToInt(const std::string& str, I& result, short base, char thSep = ',')
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/// Converts string to integer number;
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/// This is a wrapper function, for details see see the
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/// bool strToInt(const char*, I&, short, char) implementation.
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{
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return strToInt(str.c_str(), result, base, thSep);
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}
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namespace Impl {
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static char DUMMY_EXP_UNDERFLOW = 0; // dummy default val
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}
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template <typename F>
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bool strToFloat (const char* pStr, F& result, char& eu = Impl::DUMMY_EXP_UNDERFLOW, char decSep = '.', char thSep = ',')
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/// Converts zero-terminated array to floating-point number;
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/// Returns true if succesful. Exponent underflow (i.e. loss of precision)
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/// is signalled in eu. Thousand separators are recognized for the locale
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/// and silently skipped but not verified for correct positioning.
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///
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/// If parsing was unsuccesful, the return value is false with
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/// result and eu values undetermined.
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{
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poco_assert (decSep != thSep);
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if (pStr == 0 || *pStr == '\0') return false;
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// parser states:
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const char STATE_LEADING_SPACES = 0;
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const char STATE_DIGITS_BEFORE_DEC_POINT = 1;
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const char STATE_DIGITS_AFTER_DEC_POINT = 2;
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const char STATE_EXP_CHAR = 3;
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const char STATE_EXP_DIGITS = 4;
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const char STATE_SUFFIX = 5; // 'f' suffix
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char numSign = 1, expSign = 1;
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char state = STATE_LEADING_SPACES;
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F mantissa = 0.0, exponent = 0.0;
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F pow10 = 1.;
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result = 0.0;
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eu = 0;
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for (; *pStr != '\0'; ++pStr)
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{
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switch (*pStr)
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{
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case '.':
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if (decSep == '.')
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{
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if (state >= STATE_DIGITS_AFTER_DEC_POINT) return false;
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state = STATE_DIGITS_AFTER_DEC_POINT;
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break;
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}
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else if ((thSep == '.') && (state == STATE_DIGITS_BEFORE_DEC_POINT))
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break;
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else
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return false;
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case ',':
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if (decSep == ',')
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{
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if (state >= STATE_DIGITS_AFTER_DEC_POINT) return false;
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state = STATE_DIGITS_AFTER_DEC_POINT;
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break;
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}
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else if ((thSep == ',') && (state == STATE_DIGITS_BEFORE_DEC_POINT))
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break;
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else
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return false;
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case ' ': // space (SPC)
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if ((thSep == ' ') && (state == STATE_DIGITS_BEFORE_DEC_POINT)) break;
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case '\t': // horizontal tab (TAB)
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case '\n': // line feed (LF)
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case '\v': // vertical tab (VT)
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case '\f': // form feed (FF)
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case '\r': // carriage return (CR)
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if ((state >= STATE_DIGITS_AFTER_DEC_POINT) || (state >= STATE_EXP_DIGITS))
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break;
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else if ((state > STATE_LEADING_SPACES) && (state < STATE_DIGITS_AFTER_DEC_POINT))
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return false;
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break;
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case '-':
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if (state == STATE_LEADING_SPACES)
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numSign = -1;
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else if (state == STATE_EXP_CHAR) // exponential char
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expSign = -1;
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else return false;
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case '+':
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break;
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
|
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case '5':
|
||||
case '6':
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case '7':
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case '8':
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case '9':
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if (state >= STATE_SUFFIX) return false; // constant suffix
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if (state <= STATE_DIGITS_BEFORE_DEC_POINT) // integral part digits
|
||||
{
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result = result * 10 + (*pStr - '0');
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state = STATE_DIGITS_BEFORE_DEC_POINT;
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}
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else if (state <= STATE_DIGITS_AFTER_DEC_POINT) // fractional part digits
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{
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mantissa += (*pStr - '0') / (pow10 *= 10.);
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state = STATE_DIGITS_AFTER_DEC_POINT;
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}
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else if (state <= STATE_EXP_DIGITS) // exponent digits
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{
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exponent = exponent * 10 + (*pStr - '0');
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state = STATE_EXP_DIGITS;
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||||
}
|
||||
else return false;
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||||
break;
|
||||
|
||||
case 'E':
|
||||
case 'e':
|
||||
if (state > STATE_DIGITS_AFTER_DEC_POINT) return false;
|
||||
state = STATE_EXP_CHAR;
|
||||
break;
|
||||
|
||||
case 'F':
|
||||
case 'f':
|
||||
state = STATE_SUFFIX;
|
||||
break;
|
||||
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
if (exponent > std::numeric_limits<F>::max_exponent10)
|
||||
{
|
||||
eu = expSign;
|
||||
exponent = std::numeric_limits<F>::max_exponent10;
|
||||
}
|
||||
|
||||
result += mantissa;
|
||||
if (numSign != 1) result *= numSign;
|
||||
if (exponent > 1.0)
|
||||
{
|
||||
F scale = std::pow(10., exponent);
|
||||
result = (expSign < 0) ? (result / scale) : (result * scale);
|
||||
}
|
||||
|
||||
return (state != STATE_LEADING_SPACES) && // empty/zero-length string
|
||||
!FPEnvironment::isInfinite(result) &&
|
||||
!FPEnvironment::isNaN(result);
|
||||
}
|
||||
|
||||
|
||||
template <typename F>
|
||||
bool strToFloat (const std::string& s, F& result, char& eu = Impl::DUMMY_EXP_UNDERFLOW, char decSep = '.', char thSep = ',')
|
||||
/// Converts string to floating-point number;
|
||||
/// This is a wrapper function, for details see see the
|
||||
/// bool strToFloat(const char*, F&, char&, char, char) implementation.
|
||||
{
|
||||
return strToFloat(s.c_str(), result, eu, decSep, thSep);
|
||||
}
|
||||
|
||||
|
||||
} // namespace Poco
|
||||
|
||||
|
||||
#endif // Foundation_NumericString_INCLUDED
|
||||
//
|
||||
// NumericString.h
|
||||
//
|
||||
// $Id: //poco/1.4/Foundation/include/Poco/NumericString.h#1 $
|
||||
//
|
||||
// Library: Foundation
|
||||
// Package: Core
|
||||
// Module: NumericString
|
||||
//
|
||||
// Numeric string utility functions.
|
||||
//
|
||||
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
|
||||
// and Contributors.
|
||||
//
|
||||
// Permission is hereby granted, free of charge, to any person or organization
|
||||
// obtaining a copy of the software and accompanying documentation covered by
|
||||
// this license (the "Software") to use, reproduce, display, distribute,
|
||||
// execute, and transmit the Software, and to prepare derivative works of the
|
||||
// Software, and to permit third-parties to whom the Software is furnished to
|
||||
// do so, all subject to the following:
|
||||
//
|
||||
// The copyright notices in the Software and this entire statement, including
|
||||
// the above license grant, this restriction and the following disclaimer,
|
||||
// must be included in all copies of the Software, in whole or in part, and
|
||||
// all derivative works of the Software, unless such copies or derivative
|
||||
// works are solely in the form of machine-executable object code generated by
|
||||
// a source language processor.
|
||||
//
|
||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
|
||||
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
|
||||
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
|
||||
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
// DEALINGS IN THE SOFTWARE.
|
||||
//
|
||||
|
||||
|
||||
#ifndef Foundation_NumericString_INCLUDED
|
||||
#define Foundation_NumericString_INCLUDED
|
||||
|
||||
|
||||
#include "Poco/Foundation.h"
|
||||
#include "Poco/FPEnvironment.h"
|
||||
#ifdef min
|
||||
#undef min
|
||||
#endif
|
||||
#ifdef max
|
||||
#undef max
|
||||
#endif
|
||||
#include <limits>
|
||||
#include <cmath>
|
||||
#if !defined(POCO_NO_LOCALE)
|
||||
#include <locale>
|
||||
#endif
|
||||
|
||||
|
||||
namespace Poco {
|
||||
|
||||
|
||||
inline char decimalSeparator()
|
||||
/// Returns decimal separator from global locale or
|
||||
/// default '.' for platforms where locale is unavailable.
|
||||
{
|
||||
#if !defined(POCO_NO_LOCALE)
|
||||
return std::use_facet<std::numpunct<char> >(std::locale()).decimal_point();
|
||||
#else
|
||||
return '.';
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
inline char thousandSeparator()
|
||||
/// Returns thousand separator from global locale or
|
||||
/// default ',' for platforms where locale is unavailable.
|
||||
{
|
||||
#if !defined(POCO_NO_LOCALE)
|
||||
return std::use_facet<std::numpunct<char> >(std::locale()).thousands_sep();
|
||||
#else
|
||||
return ',';
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
template <typename I>
|
||||
bool strToInt(const char* pStr, I& result, short base, char thSep = ',')
|
||||
/// Converts zero-terminated character array to integer number;
|
||||
/// Thousand separators are recognized for base10 and current locale;
|
||||
/// it is silently skipped but not verified for correct positioning.
|
||||
/// Function returns true if succesful. If parsing was unsuccesful,
|
||||
/// the return value is false with the result value undetermined.
|
||||
{
|
||||
if (!pStr) return false;
|
||||
while (isspace(*pStr)) ++pStr;
|
||||
if (*pStr == '\0') return false;
|
||||
char sign = 1;
|
||||
if ((base == 10) && (*pStr == '-'))
|
||||
{
|
||||
sign = -1;
|
||||
++pStr;
|
||||
}
|
||||
else if (*pStr == '+') ++pStr;
|
||||
|
||||
// parser states:
|
||||
const char STATE_SIGNIFICANT_DIGITS = 1;
|
||||
char state = 0;
|
||||
|
||||
result = 0;
|
||||
I limitCheck = std::numeric_limits<I>::max() / base;
|
||||
for (; *pStr != '\0'; ++pStr)
|
||||
{
|
||||
switch (*pStr)
|
||||
{
|
||||
case 'x': case 'X':
|
||||
if (base != 0x10) return false;
|
||||
|
||||
case '0':
|
||||
if (state < STATE_SIGNIFICANT_DIGITS) break;
|
||||
|
||||
case '1': case '2': case '3': case '4':
|
||||
case '5': case '6': case '7':
|
||||
if (state < STATE_SIGNIFICANT_DIGITS) state = STATE_SIGNIFICANT_DIGITS;
|
||||
if (result > limitCheck) return false;
|
||||
result = result * base + (*pStr - '0');
|
||||
|
||||
break;
|
||||
|
||||
case '8': case '9':
|
||||
if ((base == 10) || (base == 0x10))
|
||||
{
|
||||
if (state < STATE_SIGNIFICANT_DIGITS) state = STATE_SIGNIFICANT_DIGITS;
|
||||
if (result > limitCheck) return false;
|
||||
result = result * base + (*pStr - '0');
|
||||
}
|
||||
else return false;
|
||||
|
||||
break;
|
||||
|
||||
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
|
||||
if (base != 0x10) return false;
|
||||
if (state < STATE_SIGNIFICANT_DIGITS) state = STATE_SIGNIFICANT_DIGITS;
|
||||
if (result > limitCheck) return false;
|
||||
result = result * base + (10 + *pStr - 'a');
|
||||
|
||||
break;
|
||||
|
||||
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
|
||||
if (base != 0x10) return false;
|
||||
|
||||
if (state < STATE_SIGNIFICANT_DIGITS) state = STATE_SIGNIFICANT_DIGITS;
|
||||
if (result > limitCheck) return false;
|
||||
result = result * base + (10 + *pStr - 'A');
|
||||
|
||||
break;
|
||||
|
||||
case 'U':
|
||||
case 'u':
|
||||
case 'L':
|
||||
case 'l':
|
||||
goto done;
|
||||
|
||||
case '.':
|
||||
if ((base == 10) && (thSep == '.')) break;
|
||||
else return false;
|
||||
|
||||
case ',':
|
||||
if ((base == 10) && (thSep == ',')) break;
|
||||
else return false;
|
||||
|
||||
case ' ':
|
||||
if ((base == 10) && (thSep == ' ')) break;
|
||||
case '\t':
|
||||
case '\n':
|
||||
case '\v':
|
||||
case '\f':
|
||||
case '\r':
|
||||
goto done;
|
||||
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
done:
|
||||
if ((sign < 0) && (base == 10)) result *= sign;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
template <typename I>
|
||||
bool strToInt(const std::string& str, I& result, short base, char thSep = ',')
|
||||
/// Converts string to integer number;
|
||||
/// This is a wrapper function, for details see see the
|
||||
/// bool strToInt(const char*, I&, short, char) implementation.
|
||||
{
|
||||
return strToInt(str.c_str(), result, base, thSep);
|
||||
}
|
||||
|
||||
|
||||
namespace Impl {
|
||||
|
||||
static char DUMMY_EXP_UNDERFLOW = 0; // dummy default val
|
||||
|
||||
}
|
||||
|
||||
template <typename F>
|
||||
bool strToFloat (const char* pStr, F& result, char& eu = Impl::DUMMY_EXP_UNDERFLOW, char decSep = '.', char thSep = ',')
|
||||
/// Converts zero-terminated array to floating-point number;
|
||||
/// Returns true if succesful. Exponent underflow (i.e. loss of precision)
|
||||
/// is signalled in eu. Thousand separators are recognized for the locale
|
||||
/// and silently skipped but not verified for correct positioning.
|
||||
///
|
||||
/// If parsing was unsuccesful, the return value is false with
|
||||
/// result and eu values undetermined.
|
||||
{
|
||||
poco_assert (decSep != thSep);
|
||||
|
||||
if (pStr == 0 || *pStr == '\0') return false;
|
||||
|
||||
// parser states:
|
||||
const char STATE_LEADING_SPACES = 0;
|
||||
const char STATE_DIGITS_BEFORE_DEC_POINT = 1;
|
||||
const char STATE_DIGITS_AFTER_DEC_POINT = 2;
|
||||
const char STATE_EXP_CHAR = 3;
|
||||
const char STATE_EXP_DIGITS = 4;
|
||||
const char STATE_SUFFIX = 5; // 'f' suffix
|
||||
|
||||
char numSign = 1, expSign = 1;
|
||||
char state = STATE_LEADING_SPACES;
|
||||
F mantissa = 0.0, exponent = 0.0;
|
||||
F pow10 = 1.;
|
||||
result = 0.0;
|
||||
eu = 0;
|
||||
for (; *pStr != '\0'; ++pStr)
|
||||
{
|
||||
switch (*pStr)
|
||||
{
|
||||
case '.':
|
||||
if (decSep == '.')
|
||||
{
|
||||
if (state >= STATE_DIGITS_AFTER_DEC_POINT) return false;
|
||||
state = STATE_DIGITS_AFTER_DEC_POINT;
|
||||
break;
|
||||
}
|
||||
else if ((thSep == '.') && (state == STATE_DIGITS_BEFORE_DEC_POINT))
|
||||
break;
|
||||
else
|
||||
return false;
|
||||
|
||||
case ',':
|
||||
if (decSep == ',')
|
||||
{
|
||||
if (state >= STATE_DIGITS_AFTER_DEC_POINT) return false;
|
||||
state = STATE_DIGITS_AFTER_DEC_POINT;
|
||||
break;
|
||||
}
|
||||
else if ((thSep == ',') && (state == STATE_DIGITS_BEFORE_DEC_POINT))
|
||||
break;
|
||||
else
|
||||
return false;
|
||||
|
||||
case ' ': // space (SPC)
|
||||
if ((thSep == ' ') && (state == STATE_DIGITS_BEFORE_DEC_POINT)) break;
|
||||
case '\t': // horizontal tab (TAB)
|
||||
case '\n': // line feed (LF)
|
||||
case '\v': // vertical tab (VT)
|
||||
case '\f': // form feed (FF)
|
||||
case '\r': // carriage return (CR)
|
||||
if ((state >= STATE_DIGITS_AFTER_DEC_POINT) || (state >= STATE_EXP_DIGITS))
|
||||
break;
|
||||
else if ((state > STATE_LEADING_SPACES) && (state < STATE_DIGITS_AFTER_DEC_POINT))
|
||||
return false;
|
||||
break;
|
||||
|
||||
case '-':
|
||||
if (state == STATE_LEADING_SPACES)
|
||||
numSign = -1;
|
||||
else if (state == STATE_EXP_CHAR) // exponential char
|
||||
expSign = -1;
|
||||
else return false;
|
||||
case '+':
|
||||
break;
|
||||
|
||||
case '0':
|
||||
case '1':
|
||||
case '2':
|
||||
case '3':
|
||||
case '4':
|
||||
case '5':
|
||||
case '6':
|
||||
case '7':
|
||||
case '8':
|
||||
case '9':
|
||||
if (state >= STATE_SUFFIX) return false; // constant suffix
|
||||
if (state <= STATE_DIGITS_BEFORE_DEC_POINT) // integral part digits
|
||||
{
|
||||
result = result * 10 + (*pStr - '0');
|
||||
state = STATE_DIGITS_BEFORE_DEC_POINT;
|
||||
}
|
||||
else if (state <= STATE_DIGITS_AFTER_DEC_POINT) // fractional part digits
|
||||
{
|
||||
mantissa += (*pStr - '0') / (pow10 *= 10.);
|
||||
state = STATE_DIGITS_AFTER_DEC_POINT;
|
||||
}
|
||||
else if (state <= STATE_EXP_DIGITS) // exponent digits
|
||||
{
|
||||
exponent = exponent * 10 + (*pStr - '0');
|
||||
state = STATE_EXP_DIGITS;
|
||||
}
|
||||
else return false;
|
||||
break;
|
||||
|
||||
case 'E':
|
||||
case 'e':
|
||||
if (state > STATE_DIGITS_AFTER_DEC_POINT) return false;
|
||||
state = STATE_EXP_CHAR;
|
||||
break;
|
||||
|
||||
case 'F':
|
||||
case 'f':
|
||||
state = STATE_SUFFIX;
|
||||
break;
|
||||
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
if (exponent > std::numeric_limits<F>::max_exponent10)
|
||||
{
|
||||
eu = expSign;
|
||||
exponent = std::numeric_limits<F>::max_exponent10;
|
||||
}
|
||||
|
||||
result += mantissa;
|
||||
if (numSign != 1) result *= numSign;
|
||||
if (exponent > 1.0)
|
||||
{
|
||||
F scale = std::pow(10., exponent);
|
||||
result = (expSign < 0) ? (result / scale) : (result * scale);
|
||||
}
|
||||
|
||||
return (state != STATE_LEADING_SPACES) && // empty/zero-length string
|
||||
!FPEnvironment::isInfinite(result) &&
|
||||
!FPEnvironment::isNaN(result);
|
||||
}
|
||||
|
||||
|
||||
template <typename F>
|
||||
bool strToFloat (const std::string& s, F& result, char& eu = Impl::DUMMY_EXP_UNDERFLOW, char decSep = '.', char thSep = ',')
|
||||
/// Converts string to floating-point number;
|
||||
/// This is a wrapper function, for details see see the
|
||||
/// bool strToFloat(const char*, F&, char&, char, char) implementation.
|
||||
{
|
||||
return strToFloat(s.c_str(), result, eu, decSep, thSep);
|
||||
}
|
||||
|
||||
|
||||
} // namespace Poco
|
||||
|
||||
|
||||
#endif // Foundation_NumericString_INCLUDED
|
||||
|
||||
Reference in New Issue
Block a user