manish sharma

Faites glisser pour repositionner la couverture

manish sharma

The isalpha function in C is part of the C Standard Library and is defined in <ctype.h>. It checks whether a given character is an alphabetic letter (either uppercase or lowercase). The function returns a nonzero value (true) if the character is a letter (A-Z or a-z) and 0 (false) otherwise.

Syntax:

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#include <ctype.h>
int isalpha(int ch);