.

lib/utils.c

@@ -0,0 +1,31 @@
+#include "priv.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+__attribute__((noreturn)) void out_of_memory(void)
+{
+    fprintf(stderr, "out of memory\n");
+    abort();
+}
+
+void* xmalloc(size_t n)
+{
+    void* p = malloc(n);
+    if (!p) out_of_memory();
+    return p;
+}
+
+void* xcalloc(size_t n, size_t size)
+{
+    void* p = calloc(n, size);
+    if (!p) out_of_memory();
+    return p;
+}
+
+void* xrealloc(void* p, size_t n)
+{
+    void* q = realloc(p, n);
+    if (!q) out_of_memory();
+    return q;
+}