fdtd-general.h

for applying a second-order ABC to a 1D grid

#ifndef _STDIO_H
#include <stdio.h>
#endif
#ifndef _STDLIB_H
#include <stdlib.h>
#endif

#define ALLOC_1D(name,nx,type) {                \
    name = (type *)calloc(nx,sizeof(type));     \
    if (!name) {                                \
      perror("ALLOC_1D");                                          \
      fprintf(stderr,                                              \
              "Allocation failed for " #name ". Terminating...\n");\
      exit(-1);                                                    \
    };                                                             \
  }

#define ALLOC_2D(name,nx,ny,type) {                     \
    name = (type *)calloc((nx)*(ny),sizeof(type));      \
    if (!name) {                                        \
      perror("ALLOC_2D");                                           \
      fprintf(stderr,                                               \
              "Allocation failed for " #name ".  Terminating...\n");\
      exit(-1);                                                     \
    };                                                              \
  }