97 lines
1.8 KiB
C++
97 lines
1.8 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1994 - 1999
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//
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// File: string.cxx
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//
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//--------------------------------------------------------------------------
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//
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//
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// Filename: String.cxx
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//
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// Description: contains class functions for a basic
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// string class
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//
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// Author: Scott Holden (t-scotth)
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//
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//
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#include "String.hxx"
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String::String( const char *str )
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{
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_length = strlen( str );
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_string = new char[ _length + 1 ];
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strcpy( _string, str );
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}
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String::String( const String& str )
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{
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_length = str._length;
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_string = new char[ _length + 1 ];
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strcpy( _string, str._string );
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}
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String&
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String::operator=( const String& str )
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{
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if ( this != &str ) { //bad things happen if s=s
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if ( _string ) {
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delete[] _string;
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}
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_length = str._length;
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_string = new char[ _length + 1 ];
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strcpy( _string, str._string );
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}
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return *this;
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}
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String&
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String::operator=( const char* str )
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{
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if ( _string ) {
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delete[] _string;
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}
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_length = strlen( str );
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_string = new char[ _length + 1 ];
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strcpy( _string, str );
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return *this;
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}
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ostream&
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operator<<( ostream& s, const String &x )
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{
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return s << x._string;
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}
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istream&
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operator>>( istream& s, String &x )
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{
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char buf[100];
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s >> buf;
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x = buf;
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//cout << x._string << " \t[" << x._length << "]" << endl;
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return s;
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}
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char&
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String::operator[]( int i )
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{
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if ( ( i < 0 ) || ( _length <= i ) ) {
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cerr << "Error: index out of range" << endl;
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}
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return _string[i];
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}
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const char&
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String::operator[]( int i ) const
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{
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if ( ( i < 0 ) || ( _length <= i ) ) {
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cerr << "Error: index out of range" << endl;
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}
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return _string[i];
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}
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