git: 9front

ref: c1f1d93079af2f3f06bd1ce06dc07b6ea33dfd62
dir: /sys/src/ape/lib/ap/gen/toupper.c/

View raw version 
#include	<ctype.h>

toupper(int c)
{

	if(c < 'a' || c > 'z')
		return c;
	return (c-'a'+'A');
}

tolower(int c)
{

	if(c < 'A' || c > 'Z')
		return c;
	return (c-'A'+'a');
}