LLVM Codegen

src/utils/stringutils.c

@@ -0,0 +1,24 @@
+// Copyright (c) 2019 Christoffer Lerno. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <assert.h>
+#include "lib.h"
+#include "stdio.h"
+
+char *strformat(const char *var, ...)
+{
+	va_list list;
+	va_start(list, var);
+	int len = vsnprintf(NULL, 0, var, list);
+	va_end(list);
+	if (len == 0) return "";
+	va_start(list, var);
+	char *buffer = malloc_arena(len + 1);
+	int new_len = vsnprintf(buffer, len + 1, var, list);
+	va_end(list);
+	assert(len == new_len);
+	return buffer;
+}