113 lines
1.5 KiB
C
113 lines
1.5 KiB
C
/* Tests for single stepping through various branch conditions */
|
|
|
|
int noscramble(int a)
|
|
{
|
|
return a ;
|
|
}
|
|
|
|
int echo(int a)
|
|
{ return noscramble(a) ; }
|
|
|
|
int equaltest(int a,int b)
|
|
{ int retval ;
|
|
if (a == b)
|
|
retval = noscramble(1) ;
|
|
else retval = noscramble(0) ;
|
|
return retval ;
|
|
}
|
|
|
|
int neqtest(int a , int b)
|
|
{ int retval ;
|
|
if (a != b)
|
|
retval = echo(1) ;
|
|
else retval = echo(2) ;
|
|
return retval ;
|
|
}
|
|
int zerotest(int a )
|
|
{ int retval ;
|
|
a = echo(a) ;
|
|
if (a ==0)
|
|
retval = echo(1) ;
|
|
else
|
|
retval = echo(0) ;
|
|
retval = echo(retval) ;
|
|
return retval ;
|
|
}
|
|
|
|
int zerotest2(int a)
|
|
{
|
|
return (a==0) ;
|
|
}
|
|
|
|
int nonzerotest(int a)
|
|
{
|
|
int retval ;
|
|
if (a != 0)
|
|
retval = echo(0) ;
|
|
else retval = echo(1) ;
|
|
return retval ;
|
|
}
|
|
|
|
int whiletest(int a)
|
|
{
|
|
while (a > 0)
|
|
{
|
|
a-- ;
|
|
}
|
|
return 0 ;
|
|
}
|
|
int whiletest2(int a)
|
|
{
|
|
while (a > 0)
|
|
{
|
|
a = noscramble(a) ;
|
|
a-- ;
|
|
}
|
|
return a ;
|
|
}
|
|
|
|
int decr(int x) { return x - 1 ; }
|
|
|
|
int while3(int a)
|
|
{
|
|
int b = a ;
|
|
while (a == b)
|
|
{
|
|
a = echo(a) ;
|
|
b = decr(b) ;
|
|
}
|
|
return a ;
|
|
}
|
|
|
|
void done (int x) { }
|
|
|
|
int main()
|
|
{
|
|
int a,b,c,d ;
|
|
done(1) ;
|
|
a = echo(123456) ;
|
|
b = echo(123456) ;
|
|
c = echo(56789) ;
|
|
d = echo(0) ;
|
|
#if 1
|
|
equaltest(a,b) ;
|
|
done(7) ;
|
|
equaltest(a,c) ;
|
|
done(8) ;
|
|
whiletest(3) ; /* worked */
|
|
done(3) ;
|
|
while3(3) ;
|
|
done(6) ;
|
|
#endif
|
|
neqtest(a,b) ;
|
|
neqtest(a,b) ;
|
|
neqtest(a,c) ;
|
|
zerotest(d) ;
|
|
zerotest(a) ;
|
|
done(5) ;
|
|
nonzerotest(d) ;
|
|
done(4) ;
|
|
nonzerotest(a) ;
|
|
done(111) ;
|
|
return 1 ;
|
|
}
|