git: 9front

ref: 3d11a1f55819c7dab52e558ddd32265ad964b849
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');
}