1 files changed, 26 insertions, 0 deletions
diff --git a/src/stdlib/util.c b/src/stdlib/util.c
new file mode 100644
index 00000000..1fe33dfa
--- /dev/null
+++ b/src/stdlib/util.c
@@ -0,0 +1,26 @@
+// Built-in utility functions
+#include <ctype.h>
+#include <gc.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "text.h"
+#include "util.h"
+
+__attribute__((format(printf, 1, 2)))
+public char *heap_strf(const char *fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    char *tmp = NULL;
+    int len = vasprintf(&tmp, fmt, args);
+    if (len < 0) return NULL;
+    va_end(args);
+    char *ret = GC_strndup(tmp, (size_t)len);
+    free(tmp);
+    return ret;
+}
+
+// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0