PetscMemcpy#
Copies n
bytes, beginning at location b
, to the space beginning at location a
. The two memory regions CANNOT overlap, use PetscMemmove()
in that case.
Synopsis#
static inline PetscErrorCode PetscMemcpy(void *a, const void *b, size_t n)
Not Collective
Input Parameters#
b - pointer to initial memory space
n - length (in bytes) of space to copy
Output Parameter#
a - pointer to copy space
Compile Options:
PETSC_PREFER_DCOPY_FOR_MEMCPY
- cause the BLASdcopy()
routine to be used for memory copies on double precision values.PETSC_PREFER_COPY_FOR_MEMCPY
- cause C code to be used for memory copies on double precision values.PETSC_PREFER_FORTRAN_FORMEMCPY
- cause Fortran code to be used for memory copies on double precision values.
Notes#
Prefer PetscArraycpy()
This routine is analogous to memcpy()
.
See Also#
PetscMemzero()
, PetscMemcmp()
, PetscArrayzero()
, PetscArraycmp()
, PetscArraycpy()
, PetscMemmove()
, PetscStrallocpy()
Level#
intermediate
Location#
Examples#
src/ts/tutorials/ex10.c
src/ksp/ksp/tutorials/ex74.c
src/ts/tutorials/ex11.c
Index of all Sys routines
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