fix gcc warning in test
fix gcc warning in test

hhsprings/cython,c-blake/cython,marscher/cython,mrGeen/cython,fperez/cython,achernet/cython,acrispin/cython,andreasvc/cython,scoder/cython,fperez/cython,madjar/cython,roxyboy/cython,hickford/cython,fabianrost84/cython,acrispin/cython,madjar/cython,c-blake/cython,da-woods/cython,mrGeen/cython,larsmans/cython,achernet/cython,ABcDexter/cython,hpfem/cython,scoder/cython,dahebolangkuan/cython,da-woods/cython,fperez/cython,rguillebert/CythonCTypesBackend,encukou/cython,hhsprings/cython,rguillebert/CythonCTypesBackend,mrGeen/cython,madjar/cython,mcanthony/cython,ChristopherHogan/cython,slonik-az/cython,mcanthony/cython,bzzzz/cython,acrispin/cython,ABcDexter/cython,bzzzz/cython,hpfem/cython,scoder/cython,da-woods/cython,marscher/cython,scoder/cython,dahebolangkuan/cython,ChristopherHogan/cython,hhsprings/cython,fabianrost84/cython,fabianrost84/cython,hhsprings/cython,larsmans/cython,slonik-az/cython,slonik-az/cython,hpfem/cython,acrispin/cython,andreasvc/cython,andreasvc/cython,hickford/cython,JelleZijlstra/cython,bzzzz/cython,mcanthony/cython,larsmans/cython,encukou/cython,c-blake/cython,ABcDexter/cython,slonik-az/cython,encukou/cython,JelleZijlstra/cython,slonik-az/cython,dahebolangkuan/cython,fabianrost84/cython,cython/cython,achernet/cython,encukou/cython,andreasvc/cython,hickford/cython,JelleZijlstra/cython,roxyboy/cython,larsmans/cython,JelleZijlstra/cython,hpfem/cython,roxyboy/cython,hhsprings/cython,rguillebert/CythonCTypesBackend,cython/cython,ABcDexter/cython,acrispin/cython,mcanthony/cython,ABcDexter/cython,roxyboy/cython,fperez/cython,mrGeen/cython,hpfem/cython,madjar/cython,rguillebert/CythonCTypesBackend,larsmans/cython,cython/cython,da-woods/cython,fabianrost84/cython,hickford/cython,achernet/cython,dahebolangkuan/cython,encukou/cython,marscher/cython,fperez/cython,mrGeen/cython,mcanthony/cython,achernet/cython,marscher/cython,roxyboy/cython,madjar/cython,ChristopherHogan/cython,c-blake/cython,bzzzz/cython,cython/cython,marscher/cython,c-blake/cython,andreasvc/cython,dahebolangkuan/cython,hickford/cython,JelleZijlstra/cython