5.1.24 ERROR

Syntax:

ERROR ( string_expression )

Type:

none

Purpose:

Immediately interrupts the current computation, returns to the top-level, and displays the argument string_expression as error message.

Note:

This should be used as an emergency, resp. failure, exit within procedures.

Example:

int i=1; proc myError() {ERROR("Need to leave now");i=2;} myError(); → ? Need to leave now → ? error occurred in line 2: `ERROR("Need to leave now");i=2;` → ? leaving ::myError → skipping text from `;` error at token `)` i; → 1