5.1.130 typeof

Syntax:

typeof ( expression )

Type:

string

Purpose:

returns the type of an expression as string.

Returns the type of the first list element if the expression is an expression list.

Possible types are: "ideal", "int", "intmat", "intvec", "list", "map", "matrix", "module", "number", "none", "poly", "proc", "qring", "resolution", "ring", "string", "vector".

For internal use only is the type "?unknown type?".

Example:

int i=9; i; → 9 typeof(_); → int print(i); → 9 typeof(_); → none type i; → // i [0] int 9 typeof(_); → string string s=typeof(i); s; → int typeof(s); → string proc p() { "hello"; return();} p(); → hello typeof(_); → none

See Data types; type.