Description

Tests the fix for AB01194:
  e.. x1/(x1/x2) =e= 0;
produced the convert output
  e.. x1/x1/x2 =e= 0;

Contributor: Alex Meeraus

Small Model of Type : GAMS

Category : GAMS Test library

Main file : convert4.gms

$title 'CONVERT test suite - proper placing of parenthesis' (CONVERT4,SEQ=332)

$onText
Tests the fix for AB01194:
  e.. x1/(x1/x2) =e= 0;
produced the convert output
  e.. x1/x1/x2 =e= 0;

Contributor: Alex Meeraus
$offText


variables x1,x2;
equations e1,e2;
model m / e1,e2/;

e1.. x2 =e= 2;
e2.. x1/(x1/x2) =e= 2;

x1.l=1;x2.l=1;

solve m us nlp min x2;
option nlp=convert;
solve m us nlp min x2;


$onEcho > t1.gms
$include gams.gms
abort$(m.modelstat <> %modelStat.locallyOptimal% and m.modelstat <> %modelStat.optimal%) 'should be optimal'
$offEcho

execute 'gams t1 lo=%gams.lo%';
abort$errorlevel 'did not work';