strcmp and ascii value

[FastFish]

Is there any way to make the strcmp ignore the difference between capital letters and lower case? My sort is working but it is putting all the words with capitals first then the lower case.

Thanks

[Govtcheez]

You could put everything in uppercase to begin with (toupper or tolower, depending on how you feel)

[Unregistered]

Use strcasecmp() (/stricmp).

[Shiro]

>Use strcasecmp() (/stricmp).

These functions are not part of the ANSI standard.

[clu82]

If you don't mind writing you own compare function, you can get that functionality:

int
mystrcmp(char *o, char *n)
{
	while (*o)
	{
		if (tolower(*o) == tolower(*n) )
		{
			o++;
			n++;
		}
		else
		{
			return(-1);
		}
	}

	if (! *n)	// if *n isn't null when *o is, the strings are different lengths
		return(0);
	else
		return(-1);
	
}

Just call mystrcmp as you would call strcmp.

clu82

[iain]

no real need
use the tolower() function ( i think its defined in string.h)
this will convert the string to lower case. If you wish to preserve case - copy the string convert that to lower check it and then use your original which still be in its original case

[clu82]

tolower() will convert 1 character at a time.

Won't you will still need to write some kind of loop to check the string 1 character at a time?


clu82