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assert_generror

Generates an error.

Syntax

assert_generror ( errormsg )
assert_generror ( errormsg , errornb )

Parameters

expectedmsg :

a 1-by-1 matrix of strings, the error message to be produced

expectederrnb :

a 1-by-1 matrix of doubles, integer values, the error number (default expectederrnb=[]).

Description

Calls the error function, with the given arguments.

This function is called by the assert_check* function each time an error produced by the wrong match between expected and computed outputs is generated. In the case where an assert_check* function receives a wrong number of input arguments, a wrong number of output arguments, a wrong type of input argument or a wrong content of input arguments, the regular error function is called. This function can be customized to modify the behaviour of the assert_check* functions.

Examples

// Both these calls generate an error
assert_generror ( "oups" );
assert_generror ( "oups" , 123456789 );

// The following call generates an error.
assert_checktrue ( [%t %f] );
//
// Define our own error handler
function myerror(varargin)
    [lhs,rhs]=argn()
    errormsg = varargin(1)
    if ( rhs == 1 ) then
        mprintf( "myerror: %s\n", errormsg )
    else
        errornb = varargin(2)
        mprintf( "myerror: %s (%d)\n", errormsg , errornb )
    end
endfunction
//
// Configure the new error handler
back=funcprot();
funcprot(0);
olderrorfunction = assert_generror;
assert_generror = myerror;
funcprot(back);
//
// Check that the new error handler is in place
assert_checktrue ( [%t %f] );
//
// Put back the regular error handler in place
back=funcprot();
funcprot(0);
assert_generror = olderrorfunction;
funcprot(back);

History

VersionDescription
5.4.0 Function introduced
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Last updated:
Mon Jun 17 17:52:33 CEST 2024