SPC  Version 0.9.5
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int isalnum ( int  c)
inline

Check if character is alphanumeric.

Checks if parameter c is either a decimal digit or an uppercase or lowercase letter. The result is true if either isalpha or isdigit would also return true.

Parameters
cCharacter to be checked.
Returns
Returns a non-zero value (true) if c is either a digit or a letter, otherwise it returns 0 (false).
Examples:
ex_ctype.spc, and ex_isalnum.spc.