/prog/ - ANONIX libc

Name: CUDDERfan 2011-06-17 16:23

To further the development of A_NON^IX, I present you:

ctype.h

#ifndef CTYPE_H_

int isalnum(int c);

int isalpha(int c);

int iscntrl(int c);

int isdigit(int c);

int isgraph(int c);

int islower(int c);

int isprint(int c);

int ispunct(int c);

int isspace(int c);

int isupper(int c);

int isxdigit(int c);

int tolower(int c);

int toupper(int c);

#endif

ctype.c

#include "ctype.h"

int isalnum(int c) { return isalpha(c) | isdigit(c); }

int isalpha(int c) { return isupper(c) | islower(c); }

int iscntrl(int c) { return ((c < 0x20) || (c == 0x7f)) ? 1 : 0; }

int isdigit(int c) { return ((c >= '0') && (c <= '9')) ? 1 : 0; }

int isgraph(int c) { return ((c != ' ') && isprint(c)) ? 1 : 0; }

int islower(int c) { return ((c >= 'a') && (c <= 'z')) ? 1 : 0; }

int isprint(int c) { return ((c >= ' ') && (c <= '~')) ? 1 : 0; }

int ispunct(int c) { return ((c != ' ') && !isalnum(c)) ? 1 : 0; }

int isspace(int c) { return ((c == ' ') || (c == '\f') || (c == '\n') || (c == '\r') || (c == '\t') || (c == '\v')) ? 1 : 0; }

int isupper(int c) { return ((c >= 'A') && (c <= 'Z')) ? 1 : 0; }

int isxdigit(int c) { return (((c >= '0') && (c <= '9')) || ((c >= 'a') && (c <= 'f')) || ((c >= 'A') && (c <= 'F'))) ? 1 : 0; }

int tolower(int c) { return isupper(c) ? c - 'A' + 'a' : c; }

int toupper(int c) { return islower(c) ? c - 'a' + 'A' : c; }

Name: Anonymous 2011-06-22 19:17

>>51
http://pubs.opengroup.org/onlinepubs/009695399/functions/isalnum.html
The c argument is an int, the value of which the application shall ensure is representable as an unsigned char or equal to the value of the macro EOF. If the argument has any other value, the behavior is undefined.

Emphasis mine.

ANONIX libc

1 Name: CUDDERfan 2011-06-17 16:23

56 Name: Anonymous 2011-06-22 19:17

Name: CUDDERfan 2011-06-17 16:23

Name: Anonymous 2011-06-22 19:17