From: nick <nick14 AT erols DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: I need help with a fraction class
Date: Thu, 30 Oct 1997 21:33:47 -0800
Organization: Erol's Internet Services
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Message-ID: <34596DBB.6281@erols.com>
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To: djgpp AT delorie DOT com
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I've been working on this for a while and I was hoping someone could 
explain these errors.

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Content-Disposition: inline; filename="FRACTION.H"

#include "bool.h"

class fractype{
public:
    void write() const;
    float floatequiv();
    void simplify();
    fractype operator*(fractype frac2) const;
    boolean operator==(fractype frac2) const;
    fractype (int initnumer, int initdenom);
private:
    int numer;
    int denom;
};

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Content-Disposition: inline; filename="FRACTION.CPP"

#include <iostream.h>
#include <stdlib.h>
#include "fraction.h"

int GreatestCommonDivisor( int,int);

fractype::fractype(int initnumer, int initdenom)
{
numer=initnumer;
denom=initdenom;
}

void fraction::write() const;
{
cout<<numer<<'/'<<denom;
}

float fractype::floatequiv() 
{
return float(numer) / float(denom);
}

void fractype::simplify()
{
int gcd;
int absnumer= abs(numer);

if (numer==0 || absnumer==1 || denom==1)
  {
  return;
  }

gcd=GreatestCommonDivisor(absnumer, denom);
if (gcd>1) {
   numer /= gcd;
   denom /=gcd;
  }
}

fractype fractype::operator*(fractype frac2) const
{
int resultnumer = numer * frac2.numer;
int resultdenom = denom * frac2.denom;

fractype resultfrac(resultnumer, resultdenom);
resultfrac.simplify();
return resultfrac;
}

boolean fractype::operator==(fractype frac2) const
{
return (numer==frac2.numer) && (denom==frac2.denom);
}

int GreatestCommonDivisor(int a, int b)
{
int temp = a % b;
while (temp>0) {
a=b;
b=temp;
temp=a%b;
}
return b;
}

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Content-Disposition: inline; filename="GCC.LOG"

Reading specs from c:/djgpp/lib\specs
gcc version 2.7.2.1
 c:/djgpp/bin\cpp.exe -lang-c++ -v -undef -D__GNUC__=2 -D__GNUG__=2 -D__cplusplus -D__GNUC_MINOR__=7 -Dunix -Di386 -DGO32 -DMSDOS -DDJGPP=2 -DDJGPP_MINOR=1 -D__unix__ -D__i386__ -D__GO32__ -D__MSDOS__ -D__DJGPP__=2 -D__DJGPP_MINOR__=1 -D__unix -D__i386 -D__GO32 -D__MSDOS -D__DJGPP=2 -D__DJGPP_MINOR=1 fraction.cpp c:/djgpp/tmp\ccbaaaaa
GNU CPP version 2.7.2.1 (80386, BSD syntax)
#include "..." search starts here:
#include <...> search starts here:
 c:/djgpp/lang/cxx
 c:/djgpp/include
 c:/djgpp/contrib/grx20/include
 /usr/local/lib/g++-include
 /usr/local/include
 /usr/local/go32/include
 /usr/local/lib/gcc-lib/go32/2.7.2.1/include
 /usr/include
End of search list.
 c:/djgpp/bin\cc1plus.exe c:/djgpp/tmp\ccbaaaaa -quiet -dumpbase fraction.cc -version -o c:/djgpp/tmp\cccaaaaa
GNU C++ version 2.7.2.1 (80386, BSD syntax) compiled by GNU C version 2.7.2.1.
In file included from fraction.cpp:3:
fraction.h:9: syntax error before `operator'
fraction.cpp:13: parse error before `::'
fraction.cpp:50: parse error before `::'
fraction.cpp:51: no `int fractype::operator ==(class fractype) const' member function declared in class `fractype'

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