PetscBool#

Logical variable. Actually an enum in C and a logical in Fortran.

Synopsis#

typedef enum {
  PETSC_FALSE,
  PETSC_TRUE
} PetscBool;

Developer Note#

Why have PetscBool, why not use bool in C? The problem is that K and R C, C99 and C++ all have different mechanisms for boolean values. It is not easy to have a simple macro that that will work properly in all circumstances with all three mechanisms.

See Also#

PETSC_TRUE, PETSC_FALSE, PetscNot(), PetscBool3

Level#

beginner

Location#

include/petscsystypes.h

Examples#

src/dm/impls/stag/tutorials/ex2.c.html
src/dm/impls/stag/tutorials/ex3.c.html
src/dm/impls/stag/tutorials/ex4.c.html
src/dm/impls/stag/tutorials/ex6.c.html
src/dm/dt/dualspace/impls/lagrange/tutorials/ex1.c.html
src/dm/label/tutorials/ex1.c.html
src/ksp/ksp/tutorials/ex42.c.html
src/ksp/ksp/tutorials/ex43.c.html
src/ksp/ksp/tutorials/ex72.c.html
src/ts/utils/dmplexlandau/tutorials/ex2.c.html


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