jv_alloc.c


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#include <stdlib.h>
#include <stdio.h>
#include "jv_alloc.h"

static void memory_exhausted() {
  fprintf(stderr, "error: cannot allocate memory\n");
  abort();
}

void* jv_mem_alloc(size_t sz) {
  void* p = malloc(sz);
  if (!p) {
    memory_exhausted();
  }
  return p;
}

void jv_mem_free(void* p) {
  free(p);
}

void* jv_mem_realloc(void* p, size_t sz) {
  p = realloc(p, sz);
  if (!p) {
    memory_exhausted();
  }
  return p;
}

#ifndef NDEBUG
volatile char jv_mem_uninitialised;
__attribute__((constructor)) void jv_mem_uninit_setup(){
  char* p = malloc(1);
  jv_mem_uninitialised = *p;
  free(p);
}
#endif