Function | Header File | Page | Description |
---|---|---|---|
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. |
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