| isalnum() |
ctype.h |
isalnum() - isxdigit() — Test Integer Value |
Tests for alphanumeric characters. |
| isalpha() |
ctype.h |
isalnum() - isxdigit() — Test Integer Value |
Tests for alphabetic characters. |
| isascii() |
ctype.h |
isascii() — Test for Character Representable
as ASCII Value |
Tests for ASCII values. |
| isblank() |
ctype.h |
isblank() — Test for Blank or Tab Character |
Tests for blank or tab characters. |
| iscntrl() |
ctype.h |
isalnum() - isxdigit() — Test Integer Value |
Tests for control characters. |
| isdigit() |
ctype.h |
isalnum() - isxdigit() — Test Integer Value |
Tests for decimal digits. |
| isgraph() |
ctype.h |
isalnum() - isxdigit() — Test Integer Value |
Tests for printable characters excluding
the space. |
| islower() |
ctype.h |
isalnum() - isxdigit() — Test Integer Value |
Tests for lowercase letters. |
| isprint() |
ctype.h |
isalnum() - isxdigit() — Test Integer Value |
Tests for printable characters including
the space. |
| ispunct() |
ctype.h |
isalnum() - isxdigit() — Test Integer Value |
Tests for punctuation characters
as defined in the locale. |
| isspace() |
ctype.h |
isalnum() - isxdigit() — Test Integer Value |
Tests for white-space characters. |
| isupper() |
ctype.h |
isalnum() - isxdigit() — Test Integer Value |
Tests for uppercase letters. |
| isxdigit() |
ctype.h |
isalnum() - isxdigit() — Test Integer Value |
Tests for wide hexadecimal digits 0 through 9, a through f,
or A through F. |