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Lemosek
Joined: 15 Oct 2011
Posts: 36
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| Standard C function for strings |
 Posted: Sat Oct 06, 2012 5:37 am |
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Hello,
I have small problem. I want compare two string and i find strncasecmp function, but in CCS is only strncmp. This function recognize big and small symbols, like A is not a. In my program I don't need this.
For me "aaa" must be egual with "AAA".
How I can do this ??
Best regards
R.L. |
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gpsmikey
Joined: 16 Nov 2010
Posts: 588
Location: Kirkland, WA
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| Posted: Sat Oct 06, 2012 9:20 am |
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Does stricmp(s1,s2) not do what you want ? - see the "standard string functions" section in the user manual for what is available.
mikey
_________________
mikey
-- you can't have too many gadgets or too much disk space !
old engineering saying: 1+1 = 3 for sufficiently large values of 1 or small values of 3 |
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Lemosek
Joined: 15 Oct 2011
Posts: 36
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| Posted: Sat Oct 06, 2012 9:49 am |
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Hello,
Thank You for reply.
Yes this function doing this but for all string. In function strncmp I have third parameter s3 - number of characters from each string to be used in the comparison.
Best regards
R.L. |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19535
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| Posted: Sat Oct 06, 2012 2:32 pm |
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just write it.
| Code: |
int strncmpn(char* s1, char* s2, int n) {
if (n==0) return 0;
while (n-- != 0 && tolower(*s1) == tolower(*s2)) {
if (n == 0 || *s1 == '\0' || *s2 == '\0')
break;
s1++;
s2++;
}
return tolower(*(unsigned char *) s1) - tolower(*(unsigned char *) s2);
}
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There is nothing magical about any of the functions. strncasecmp, is a non standard function that was included in quite a few unix/linux distributions, but because it was _not_ part of C, the source was included as well in the include library.
Best Wishes |
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Lemosek
Joined: 15 Oct 2011
Posts: 36
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| Posted: Sun Oct 07, 2012 11:50 am |
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Hello,
Thank You very much, this is exactly what I need  .
best regards
R.L. |
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