1 2 static char help[] = "Demonstrates PetscOptionsPush()/PetscOptionsPop().\n\n"; 3 4 #include <petscsys.h> 5 #include <petscoptions.h> 6 int main(int argc,char **argv) 7 { 8 PetscErrorCode ierr; 9 PetscOptions opt1,opt2; 10 PetscInt int1,int2; 11 PetscBool flg1,flg2,flga,match; 12 char str[16]; 13 14 ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 15 16 CHKERRQ(PetscOptionsCreate(&opt1)); 17 CHKERRQ(PetscOptionsInsertString(opt1,"-testa a")); 18 CHKERRQ(PetscOptionsPush(opt1)); 19 CHKERRQ(PetscOptionsSetValue(NULL,"-test1","1")); 20 CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-test1",&int1,&flg1)); 21 PetscCheckFalse(!flg1 || int1 != 1,PETSC_COMM_WORLD,PETSC_ERR_PLIB,"Unable to locate option test1 or it has the wrong value"); 22 CHKERRQ(PetscOptionsGetString(NULL,NULL,"-testa",str,sizeof(str),&flga)); 23 CHKERRQ(PetscStrcmp(str,"a",&match)); 24 PetscCheckFalse(!flga|| !match,PETSC_COMM_WORLD,PETSC_ERR_PLIB,"Unable to locate option testa or it has the wrong value"); 25 CHKERRQ(PetscOptionsCreate(&opt2)); 26 CHKERRQ(PetscOptionsPush(opt2)); 27 CHKERRQ(PetscOptionsSetValue(NULL,"-test2","2")); 28 CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-test2",&int2,&flg2)); 29 PetscCheckFalse(!flg2 || int2 != 2,PETSC_COMM_WORLD,PETSC_ERR_PLIB,"Unable to locate option test2 or it has the wrong value"); 30 CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-test1",&int1,&flg1)); 31 PetscCheckFalse(flg1,PETSC_COMM_WORLD,PETSC_ERR_PLIB,"Able to access test1 from a different options database"); 32 33 CHKERRQ(PetscOptionsPop()); 34 CHKERRQ(PetscOptionsPop()); 35 CHKERRQ(PetscOptionsDestroy(&opt2)); 36 CHKERRQ(PetscOptionsDestroy(&opt1)); 37 ierr = PetscFinalize(); 38 return ierr; 39 } 40 41 /*TEST 42 43 test: 44 45 TEST*/ 46