#include <swversion.h>

Collaboration diagram for SWVersion:

Public Member Functions
int	compare (const SWVersion &vi) const

const char *	getText () const

	operator const char * () const

bool	operator< (const SWVersion &vi) const

bool	operator<= (const SWVersion &vi) const

bool	operator== (const SWVersion &vi) const

bool	operator> (const SWVersion &vi) const

bool	operator>= (const SWVersion &vi) const

	SWVersion (const char *version="0.0")

Public Attributes
int	major

int	minor

int	minor2

int	minor3

Static Public Attributes
static SWVersion	currentVersion

Detailed Description

A basic tool class to handle program version numbers.

Definition at line 39 of file swversion.h.

Constructor & Destructor Documentation

SWVersion::SWVersion ( const char * version = "0.0" )

The constructor.

Parameters

version Version string to be parsed.

Definition at line 41 of file swversion.cpp.

                                         {
     char *buf = new char[ strlen(version) + 1 ];
     char *tok;
     major = minor = minor2 = minor3 = -1;
         
     strcpy(buf, version);
     tok = strtok(buf, ".");
     if (tok)
         major = atoi(tok);
     tok = strtok(0, ".");
     if (tok)
         minor = atoi(tok);
     tok = strtok(0, ".");
     if (tok)
         minor2 = atoi(tok);
     tok = strtok(0, ".");
     if (tok)
         minor3 = atoi(tok);
     delete [] buf;
 }

Member Function Documentation

int SWVersion::compare ( const SWVersion & vi ) const

Compare 2 Versions with each other.

Parameters

vi	Version number to compare with.

Returns: >0:this>vi; 0:this==vi; <0:this<vi

Definition at line 73 of file swversion.cpp.

                                                 {
     if (major == vi.major)
         if (minor == vi.minor)
             if (minor2 == vi.minor2)
                 if (minor3 == vi.minor3)
                     return 0;
                 else return minor3 - vi.minor3;
             else    return minor2 - vi.minor2;
         else    return minor - vi.minor;
     else    return major - vi.major;
 }

const char * SWVersion::getText ( ) const

Returns: The parsed version number text.

Definition at line 86 of file swversion.cpp.

                                      {
 
     // 255 is safe because there is no way 4 integers (plus 3 '.'s) can have
     // a string representation that will overrun this buffer
     static char buf[255];
 
     if (minor > -1) {
         if (minor2 > -1) {
             if (minor3 > -1) {
                 sprintf(buf, "%d.%d.%d.%d", major, minor, minor2, minor3);
             }
             else    sprintf(buf, "%d.%d.%d", major, minor, minor2);
         }
         else    sprintf(buf, "%d.%d", major, minor);
     }
     else    sprintf(buf, "%d", major);
 
     return buf;
 }