text: //
  // NumberParser.h
  //
  // $Id: //poco/1.4/Foundation/include/Poco/NumberParser.h#1 $
  //
  // Library: Foundation
  // Package: Core
  // Module:  NumberParser
  //
  // Definition of the NumberParser class.
  //
  // 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_NumberParser_INCLUDED
  #define Foundation_NumberParser_INCLUDED
  
  
  #include "Poco/Foundation.h"
  
  
  namespace Poco {
  
  
  class Foundation_API NumberParser
  	/// The NumberParser class provides static methods
  	/// for parsing numbers out of strings.
  {
  public:
  	static int parse(const std::string& s);
  		/// Parses an integer value in decimal notation from the given string.
  		/// Throws a SyntaxException if the string does not hold a number in decimal notation.
  	
  	static bool tryParse(const std::string& s, int& value);
  		/// Parses an integer value in decimal notation from the given string.
  		/// Returns true if a valid integer has been found, false otherwise. 
  	
  	static unsigned parseUnsigned(const std::string& s);
  		/// Parses an unsigned integer value in decimal notation from the given string.
  		/// Throws a SyntaxException if the string does not hold a number in decimal notation.
  
  	static bool tryParseUnsigned(const std::string& s, unsigned& value);
  		/// Parses an unsigned integer value in decimal notation from the given string.
  		/// Returns true if a valid integer has been found, false otherwise. 
  
  	static unsigned parseHex(const std::string& s);
  		/// Parses an integer value in hexadecimal notation from the given string.
  		/// Throws a SyntaxException if the string does not hold a number in
  		/// hexadecimal notation.
  
  	static bool tryParseHex(const std::string& s, unsigned& value);
  		/// Parses an unsigned integer value in hexadecimal notation from the given string.
  		/// Returns true if a valid integer has been found, false otherwise. 
  
  #if defined(POCO_HAVE_INT64)
  
  	static Int64 parse64(const std::string& s);
  		/// Parses a 64-bit integer value in decimal notation from the given string.
  		/// Throws a SyntaxException if the string does not hold a number in decimal notation.
  
  	static bool tryParse64(const std::string& s, Int64& value);
  		/// Parses a 64-bit integer value in decimal notation from the given string.
  		/// Returns true if a valid integer has been found, false otherwise. 
  
  	static UInt64 parseUnsigned64(const std::string& s);
  		/// Parses an unsigned 64-bit integer value in decimal notation from the given string.
  		/// Throws a SyntaxException if the string does not hold a number in decimal notation.
  
  	static bool tryParseUnsigned64(const std::string& s, UInt64& value);
  		/// Parses an unsigned 64-bit integer value in decimal notation from the given string.
  		/// Returns true if a valid integer has been found, false otherwise. 
  
  	static UInt64 parseHex64(const std::string& s);
  		/// Parses a 64 bit-integer value in hexadecimal notation from the given string.
  		/// Throws a SyntaxException if the string does not hold a number in hexadecimal notation.
  
  	static bool tryParseHex64(const std::string& s, UInt64& value);
  		/// Parses an unsigned 64-bit integer value in hexadecimal notation from the given string.
  		/// Returns true if a valid integer has been found, false otherwise. 
  
  #endif // defined(POCO_HAVE_INT64)
  
  	static double parseFloat(const std::string& s);
  		/// Parses a double value in decimal floating point notation
  		/// from the given string. 
  		/// Throws a SyntaxException if the string does not hold a floating-point 
  		/// number in decimal notation.
  		
  	static bool tryParseFloat(const std::string& s, double& value);
  		/// Parses a double value in decimal floating point notation
  		/// from the given string. 
  		/// Returns true if a valid floating point number has been found, 
  		/// false otherwise. 
  };
  
  
  } // namespace Poco
  
  
  #endif // Foundation_NumberParser_INCLUDED
  