first commit

1 files changed, 28 insertions, 0 deletions

diff --git a/src/helpers.c b/src/helpers.c
new file mode 100644
index 0000000..ad7228e
--- /dev/null
+++ b/src/helpers.c
@@ -0,0 +1,28 @@
+#include <helpers.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+void die(const char *msg) {
+  fprintf(stderr, "panic: ");
+  perror(msg);
+  exit(EXIT_FAILURE);
+}
+
+void *safe_calloc(unsigned int i, size_t size) {
+  void *x = calloc(i, size);
+  if (x == NULL) {
+    die("abort: calloc()");
+  }
+  return x;
+}
+
+void *safe_realloc(void *x, size_t size) {
+  void *p = realloc(x, size);
+  if (x == NULL) {
+    die("abort: realloc()");
+  }
+  return p;
+}
+
+void alloc_zero(void *ptr, size_t size) { memset(ptr, 0, size); }