petsc-3.10.5 2019-03-28
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# SNESHasNPC

Returns whether a nonlinear preconditioner exists

### Synopsis

    #include "petscsnes.h"
    PetscErrorCode SNESHasNPC(SNES snes, PetscBool *has_npc)

Not Collective

### Input Parameter

snes -iterative context obtained from SNESCreate()

### Output Parameter

has_npc -whether the SNES has an NPC or not

### Keywords

SNES, has, preconditioner

### See Also

SNESSetNPC(), SNESGetNPC()

### Level

developer

### Location

src/snes/interface/snes.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages