# PetscDataTypeGetSize

Gets the size (in bytes) of a PETSc datatype

### Synopsis

    #include "petsc.h"
    PetscErrorCode PETSC_DLLEXPORT PetscDataTypeGetSize(PetscDataType ptype,PetscInt *size)

Not collective

### Input Parameter

ptype -the PETSc datatype name (for example PETSC_DOUBLE)

### Output Parameter

size -the size in bytes (for example the size of PETSC_DOUBLE is 8)

### See Also

PetscDataType, PetscDataTypeToMPIDataType()

Level:advanced
Location:src/sys/src/objects/ptype.c
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