Defined in 1 files as a prototype:

• include/ctype.h, line 109 (as a prototype)

Defined in 1 files as a macro:

• include/ctype.h, line 138 (as a macro)

Defined in 1 files as a function:

• locale/isctype.c, line 132 (as a function)

Referenced in 4 files:

• locale/isctype.c, line 130
• net/inet_network.c, line 91
• net/nsap_addr.c, line 67
• regex/regcomp.c, line 938