petsc-3.12.4 2020-02-04
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# PetscFileMode

Access mode for a file.

### Synopsis

    typedef enum {FILE_MODE_READ, FILE_MODE_WRITE, FILE_MODE_APPEND, FILE_MODE_UPDATE, FILE_MODE_APPEND_UPDATE} PetscFileMode;

     FILE_MODE_READ - open a file at its beginning for reading

     FILE_MODE_WRITE - open a file at its beginning for writing (will create if the file does not exist)

     FILE_MODE_APPEND - open a file at end for writing

     FILE_MODE_UPDATE - open a file for updating, meaning for reading and writing

     FILE_MODE_APPEND_UPDATE - open a file for updating, meaning for reading and writing, at the end

### See Also

PetscViewerFileSetMode()

### Level

beginner

### Location

include/petscsystypes.h

### Examples

src/sys/classes/viewer/examples/tutorials/ex1.c.html
src/sys/classes/viewer/examples/tutorials/ex1f90.F90.html
src/sys/examples/tutorials/ex5.c.html
src/sys/examples/tutorials/ex5f90.F90.html
src/vec/vec/examples/tutorials/ex5.c.html
src/vec/vec/examples/tutorials/ex6.c.html
src/vec/vec/examples/tutorials/ex10.c.html
src/vec/vec/examples/tutorials/ex19.c.html
src/vec/vec/examples/tutorials/ex5f.F90.html
src/vec/vec/examples/tutorials/ex6f.F90.html
src/mat/examples/tutorials/ex1.c.html
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Index of all manual pages