📄 argumentparser.h
字号:
//////////////////////////////////////////////////////////////////////////// Copyright (c) 2000, Yusuke Miyao/// You may distribute under the terms of the Artistic License.////// <id>$Id: ArgumentParser.h,v 1.2 2003/05/11 18:12:09 yusuke Exp $</id>/// <collection>Maximum Entropy Estimator</collection>/// <name>ArgumentParser.h</name>/// <overview>Parsing command-line arguments</overview>/////////////////////////////////////////////////////////////////////////#ifndef Amis_ArgumentParser_h_#define Amis_ArgumentParser_h_#include <amis/configure.h>#include <amis/ErrorBase.h>AMIS_NAMESPACE_BEGIN///////////////////////////////////////////////////////////////////////// <classdef>/// <name>IllegalArgumentError</name>/// <overview>Exception for illegal arguments</overview>/// <desc>/// The error is thrown when an illegal argument is specified to the program./// </desc>/// <body>class IllegalArgumentError : public ErrorBase { public: IllegalArgumentError( const std::string& m ) : ErrorBase( m ) {} /// Initialize with an error message IllegalArgumentError( const char* m ) : ErrorBase( m ) {} /// Initialize with an error message};/// </body>/// </classdef>///////////////////////////////////////////////////////////////////////// <classdef>/// <name>ArgumentParser</name>/// <overview>Parse command-line arguments</overview>/// <desc>A parser for command-line arguments</desc>/// <body>class ArgumentParser {private: int argc; const char** argv; int i;public: ArgumentParser( int c, const char** v ) { argc = c; argv = v; i = 1; } virtual ~ArgumentParser() {} bool empty( void ) { return i == argc; } std::string nextArgument( const std::string& message ) { if ( i < argc ) { return argv[ i++ ]; } else { throw IllegalArgumentError( message ); } } void windBack() { if ( i != 1 ) { i--; } } int nextArgumentInteger( const std::string& message ) { if ( i < argc ) { char* end_ptr; int num = static_cast< int >( strtol( argv[ i++ ], &end_ptr, 0 ) ); if ( *end_ptr != '\0' ) { throw IllegalArgumentError( message ); } return num; } else { throw IllegalArgumentError( message ); } } double nextArgumentDouble( const std::string& message ) { if ( i < argc ) { char* end_ptr; double num = static_cast< double >( strtod( argv[ i++ ], &end_ptr) ); if ( *end_ptr != '\0' ) { throw IllegalArgumentError( message ); } return num; } else { throw IllegalArgumentError( message ); } }};/// </body>/// </classdef>AMIS_NAMESPACE_END#endif // Amis_ArgumentParser_h_// end of ArgumentParser.h⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -