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lammps/src/memory.cpp
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memory.cpp
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/* ----------------------------------------------------------------------
LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
http://lammps.sandia.gov, Sandia National Laboratories
Steve Plimpton, sjplimp@sandia.gov
Copyright (2003) Sandia Corporation. Under the terms of Contract
DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
certain rights in this software. This software is distributed under
the GNU General Public License.
See the README file in the top-level LAMMPS directory.
------------------------------------------------------------------------- */
#include "lmptype.h"
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
#include "memory.h"
#include "error.h"
using namespace LAMMPS_NS;
/* ---------------------------------------------------------------------- */
Memory::Memory(LAMMPS *lmp) : Pointers(lmp) {}
/* ----------------------------------------------------------------------
safe malloc
------------------------------------------------------------------------- */
void *Memory::smalloc(bigint nbytes, const char *name)
{
if (nbytes == 0) return NULL;
void *ptr = malloc(nbytes);
if (ptr == NULL) {
char str[128];
sprintf(str,"Failed to allocate " BIGINT_FORMAT " bytes for array %s",
nbytes,name);
error->one(FLERR,str);
}
return ptr;
}
/* ----------------------------------------------------------------------
safe realloc
------------------------------------------------------------------------- */
void *Memory::srealloc(void *ptr, bigint nbytes, const char *name)
{
if (nbytes == 0) {
destroy(ptr);
return NULL;
}
ptr = realloc(ptr,nbytes);
if (ptr == NULL) {
char str[128];
sprintf(str,"Failed to reallocate " BIGINT_FORMAT " bytes for array %s",
nbytes,name);
error->one(FLERR,str);
}
return ptr;
}
/* ----------------------------------------------------------------------
safe free
------------------------------------------------------------------------- */
void Memory::sfree(void *ptr)
{
if (ptr == NULL) return;
free(ptr);
}
/* ----------------------------------------------------------------------
erroneous usage of templated create/grow functions
------------------------------------------------------------------------- */
void Memory::fail(const char *name)
{
char str[128];
sprintf(str,"Cannot create/grow a vector/array of pointers for %s",name);
error->one(FLERR,str);
}
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