108 lines
3.1 KiB
C++
108 lines
3.1 KiB
C++
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// string.h
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// implements c++ string object for HOS
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// Author: Josh Holtrop
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// Date: 06/01/04
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// Modified: 05/10/05
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#ifndef __HOS_STRING__
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#define __HOS_STRING__ __HOS_STRING__
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class string
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{
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private:
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/* myChars is a pointer to a character array
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* It will always be a valid pointer, not null.
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* The constructor is responsible for initializing
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* it to point to a 1-char array with myChars[0] == 0 */
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char * myChars;
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/* myLength holds how many characters are in the
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* string, not including the trailing null value
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* (ASCII 0 character) */
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unsigned int myLength;
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public:
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/* Basic constructors */
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string();
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~string();
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/* Copy constructor */
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string(const string & orig);
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/* Construct strings from c-style strings:
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* Allows declarations like string s = "data"; */
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string(const char *cstring);
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/* Assignment operators */
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string & operator=(const string & orig);
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string & operator=(const char *cstring);
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/* Boolean comparison operators */
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bool operator==(const string & second) const;
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bool operator==(const char *cstring) const;
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bool operator!=(const string & second) const;
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bool operator!=(const char *cstring) const;
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bool operator<(const string & second) const;
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bool operator>(const string & second) const;
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bool operator<(const char *cstring) const;
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bool operator>(const char *cstring) const;
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bool operator<=(const string & second) const;
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bool operator>=(const string & second) const;
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bool operator<=(const char *cstring) const;
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bool operator>=(const char *cstring) const;
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/* Construct strings made up of combinations of other
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* strings, c-style strings, and characters */
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string(const string & str1, const string & str2);
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string(const string & str1, const char *cstring);
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string(const char *cstring, const string & str);
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string(const string & str1, char chr);
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string(char chr, const string & str1);
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/* Append operators */
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string & operator+=(const string & str);
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string & operator+=(const char *cstring);
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string & operator+=(char chr);
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string operator+(const string & str);
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string operator+(const char *cstring);
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string operator+(char chr);
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/* Direct character-access operators */
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const char & operator[](unsigned int index) const;
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char & operator[](unsigned int index);
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/* Returns handle to actual character-array for programs
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* that need raw data instead of a string object */
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char * data() const;
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/* Returns the size of the string. This is myLength
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* and is the number of characters in the string
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* not counting the trailing null (ASCII 0) character */
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int size() const;
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};
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static inline bool operator==(char *cstring, const string & str)
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{ return str == cstring; }
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static inline bool operator!=(char *cstring, const string & str)
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{ return str != cstring; }
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static inline bool operator<(const char *cstring, const string & str)
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{ return str > cstring; }
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static inline bool operator>(const char *cstring, const string & str)
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{ return str < cstring; }
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static inline bool operator<=(const char *cstring, const string & str)
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{ return str >= cstring; }
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static inline bool operator>=(const char *cstring, const string & str)
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{ return str <= cstring; }
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#endif
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