slepc-3.18.2 2023-01-26
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# EPSGetOptionsPrefix

Gets the prefix used for searching for all EPS options in the database.

### Synopsis

    #include "slepceps.h"
    PetscErrorCode EPSGetOptionsPrefix(EPS eps,const char *prefix[])

Not Collective

### Input Parameters

| eps | - the eigensolver context

### Output Parameters

| prefix | - pointer to the prefix string used is returned

### Note

On the Fortran side, the user should pass in a string 'prefix' of sufficient length to hold the prefix.

### See Also

EPSSetOptionsPrefix(), EPSAppendOptionsPrefix()

### Level

advanced

### Location

src/eps/interface/epsopts.c
Index of all EPS routines
Table of Contents for all manual pages
Index of all manual pages