ctype.h File Reference

Character types. More...

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Defines
#define	isdigit(c)   ((c) >= '0' && (c) <= '9')
#define	islower(c)   ((c) >= 'a' && (c) <= 'z')
#define	isupper(c)   ((c) >= 'A' && (c) <= 'Z')
Functions
	FILE_LICENCE (GPL2_OR_LATER)
static unsigned char	tolower (unsigned char c)
static unsigned char	toupper (unsigned char c)
int	isspace (int c)
	Check to see if character is a space.

---

Detailed Description

Character types.

Definition in file ctype.h.

---

Define Documentation

#define isdigit

(

c

)

((c) >= '0' && (c) <= '9')

Definition at line 11 of file ctype.h.

Referenced by gdbstub_from_hex_digit(), getkey(), and is_unreserved_uri_char().

#define islower

(

c

)

((c) >= 'a' && (c) <= 'z')

Definition at line 12 of file ctype.h.

Referenced by is_unreserved_uri_char(), and toupper().

#define isupper

(

c

)

((c) >= 'A' && (c) <= 'Z')

Definition at line 13 of file ctype.h.

Referenced by is_unreserved_uri_char(), and tolower().

---

Function Documentation

FILE_LICENCE

(

GPL2_OR_LATER

)

static unsigned char tolower

(

unsigned char

c

)

[inline, static]

Definition at line 15 of file ctype.h.

References isupper.

Referenced by gdbstub_from_hex_digit(), and strnicmp().

{
        if (isupper(c))
                c -= 'A'-'a';
        return c;
}

static unsigned char toupper

(

unsigned char

c

)

[inline, static]

Definition at line 22 of file ctype.h.

References islower.

Referenced by pxe_menu_select().

{
        if (islower(c))
                c -= 'a'-'A';
        return c;
}

int isspace

(

int

c

)

Check to see if character is a space.

Parameters:

c

Character

Return values:

isspace

Character is a space

Definition at line 36 of file ctype.c.

Referenced by script_load(), split_args(), and strtoul().

                      {
        switch ( c ) {
        case ' ' :
        case '\f' :
        case '\n' :
        case '\r' :
        case '\t' :
        case '\v' :
                return 1;
        default:
                return 0;
        }
}