From the NannyMUD documentation
2000-12-14
NAME
intp - Determine if a variable is of type int.SYNTAX
int intp(mixed testvar)DESCRIPTION
This function return 1 if `testvar' was of the type integer, and 0 otherwise.SEE ALSO
mappingp in efun/type_related/mappingpSEE ALSO
stringp in efun/type_related/stringpSEE ALSO
pointerp in efun/type_related/pointerpSEE ALSO
objectp in efun/type_related/objectp