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42 lines
594 B
C
42 lines
594 B
C
/*
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FUNCTION
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<<strlwr>>---force string to lowercase
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INDEX
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strlwr
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SYNOPSIS
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#include <string.h>
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char *strlwr(char *<[a]>);
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DESCRIPTION
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<<strlwr>> converts each character in the string at <[a]> to
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lowercase.
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RETURNS
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<<strlwr>> returns its argument, <[a]>.
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PORTABILITY
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<<strlwr>> is not widely portable.
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<<strlwr>> requires no supporting OS subroutines.
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QUICKREF
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strlwr
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*/
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#include <string.h>
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#include <ctype.h>
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char *
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_DEFUN (strlwr, (s),
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char *s)
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{
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unsigned char *ucs = (unsigned char *) s;
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for ( ; *ucs != '\0'; ucs++)
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{
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*ucs = tolower(*ucs);
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}
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return s;
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}
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