tag
line
file
source code
isupper
213
arch/i386/boot/compressed/gzip.h
#define tolow(c) (isupper(c) ? (c)-'A'+'a' : (c)) /* force to lower case */
isupper
31
include/linux/ctype.h
#define tolower(c) (_ctmp=c,isupper(_ctmp)?_ctmp-('A'-'a'):_ctmp)