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