petsc-3.12.5 2020-03-29
PetscMemzero
Zeros the specified memory.
Synopsis
PETSC_STATIC_INLINE PetscErrorCode PetscMemzero(void *a,size_t n)
Not Collective
Input Parameters
| a | - pointer to beginning memory location
|
| n | - length (in bytes) of memory to initialize
|
Compile Option
PETSC_PREFER_BZERO - on certain machines (the IBM RS6000) the bzero() routine happens
to be faster than the memset() routine. This flag causes the bzero() routine to be used.
Not available from Fortran
Prefer PetscArrayzero()
Developer Note: this is inlined for fastest performance
See Also
PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscArraycmp(), PetscArraycpy(), PetscMemmove(), PetscStrallocpy()
Level
intermediate
Location
include/petscsys.h
Examples
src/sys/examples/tutorials/ex5.c.html
src/ksp/ksp/examples/tutorials/ex42.c.html
src/ksp/ksp/examples/tutorials/ex43.c.html
src/ksp/ksp/examples/tutorials/ex49.c.html
src/ksp/ksp/examples/tutorials/ex70.c.html
src/snes/examples/tutorials/ex48.c.html
src/ts/examples/tutorials/ex9.c.html
src/ts/examples/tutorials/ex10.c.html
src/ts/examples/tutorials/ex11.c.html
src/ts/examples/tutorials/ex14.c.html
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages