:orphan:
# PetscBinarySeek
Moves the file pointer on a PETSc binary file. 
## Synopsis
```
PetscErrorCode PetscBinarySeek(int fd, off_t off, PetscBinarySeekType whence, off_t *offset)
```
Not Collective


## Input Parameters

- ***fd -*** the file
- ***off -*** number of bytes to move. Use `PETSC_BINARY_INT_SIZE`, `PETSC_BINARY_SCALAR_SIZE`,
etc. in your calculation rather than `sizeof()` to compute byte lengths.
- ***whence -*** see `PetscBinarySeekType` for possible values



## Output Parameter

- ***offset -*** new offset in file





## See Also
 `PetscBinaryRead()`, `PetscBinarySeekType`, `PetscBinaryWrite()`, `PetscBinaryOpen()`, `PetscBinarySynchronizedWrite()`, `PetscBinarySynchronizedRead()`,
`PetscBinarySynchronizedSeek()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/sys/fileio/sysio.c.html#PetscBinarySeek">src/sys/fileio/sysio.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/sys/fileio/sysio.c)


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