Description:
Determine whether a
character is alphanumeric, i.e. A - Z, a - z, 0 - 9 or _. Note that this function treats the underscore
character as an alphanumeric character.
Invocation
int chrIsalm( char cvalue )
Returned
Value
Returns non-zero if the given character is alphanumeric,
Parameters :
cvalue
The
character to be tested.
Copyright © 2018 East Asian Observatory