c:string:isalpha

C++ Reference

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isalpha

Syntax: 

    #include <cctype>
    int isalpha( int ch );

The function isalpha() returns non-zero if its argument is a letter of the alphabet. Otherwise, zero is returned. 

     char c;
     scanf( "%c", &c );
     if( isalpha(c) )
       printf( "You entered a letter of the alphabet\n" );

Related Topics: isalnum, iscntrl, isdigit, isgraph, isprint, ispunct, isspace, isxdigit

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