function test_fortran2

$ #ifdef __cplusplus
$ extern "C"
$ #endif
$ int foo_(int* a, int* b, int* c)
$ {
$     *a = *b + *c;
$ }

# FORTRAN foo(output int* a, int 1, int 2);
tassert(a == 3, 'FORTRAN bindings');

function tassert(pred, msg)
if ~pred, fprintf('Failure: %s\n', msg); end