PETSc version 3.17.4
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# PetscOptionsTail

Ends a section of options begun with PetscOptionsHead() See, for example, KSPSetFromOptions_GMRES(). Collective on the comm used in PetscOptionsBegin() or obj used in PetscObjectOptionsBegin()

### Synopsis

    #include <petscoptions.h>
    PetscErrorCode PetscOptionsTail(void)

### Notes

Must be between a PetscOptionsBegin()/PetscObjectOptionsBegin() and a PetscOptionsEnd()

Must be preceded by a call to PetscOptionsHead() in the same function.

This needs to be used only if the code below PetscOptionsTail() can be run ONLY once. See, for example, PCSetFromOptions_Composite(). This is a return(0) in it for early exit from the function.

This is only for use with the PETSc options GUI

### See Also

PetscOptionsGetInt(), PetscOptionsGetReal(),
PetscOptionsHasName(), PetscOptionsGetIntArray(), PetscOptionsGetRealArray(), PetscOptionsBool(), PetscOptionsName(), PetscOptionsBegin(), PetscOptionsEnd(), PetscOptionsHead(), PetscOptionsStringArray(),PetscOptionsRealArray(), PetscOptionsScalar(), PetscOptionsBoolGroupBegin(), PetscOptionsBoolGroup(), PetscOptionsBoolGroupEnd(), PetscOptionsFList(), PetscOptionsEList(), PetscOptionsEnum()

### Level

intermediate

### Location

src/sys/objects/../../../include/petscoptions.h

### Examples

src/ts/tutorials/ex11.c.html
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