From 7a452ff97f5dd81d6e9f886d2a7ec728570720ea Mon Sep 17 00:00:00 2001
From: cinnaboot <cinnaboot@protonmail.com>
Date: Thu, 16 Dec 2021 12:18:30 -0500
Subject: [PATCH] add util.h single file header

---
 src/main.cpp   |  2 ++
 src/shader.cpp |  1 +
 src/util.h     | 36 ++++++++++++++++++++++++++++++++++++
 3 files changed, 39 insertions(+)
 create mode 100644 src/util.h

diff --git a/src/main.cpp b/src/main.cpp
index 8e513e1..f382546 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -11,6 +11,8 @@
 #include "GLDebug.h"
 #include "shader.h"
 #include "types.h"
+#define UTIL_IMPLEMENTATION
+#include "util.h"
 
 
 struct SDLHandles
diff --git a/src/shader.cpp b/src/shader.cpp
index 0b0da01..ac41a26 100644
--- a/src/shader.cpp
+++ b/src/shader.cpp
@@ -13,6 +13,7 @@
 #define GL_DEBUG_IMPLEMENTATION
 #include "GLDebug.h"
 #include "shader.h"
+#include "util.h"
 
 
 
diff --git a/src/util.h b/src/util.h
new file mode 100644
index 0000000..3fd505c
--- /dev/null
+++ b/src/util.h
@@ -0,0 +1,36 @@
+
+#include <cassert>
+#include <cstring>
+
+#include "types.h"
+
+
+char* utilAllocateCStr(const char* str, u32 max_len = 256);
+void utilSafeFree(void* p);
+
+
+#ifdef UTIL_IMPLEMENTATION
+
+char*
+utilAllocateCStr(const char* str, u32 max_len)
+{
+	u32 len = strlen(str) + 1;
+
+	if (len > max_len) {
+		printf("%s(), %s , longer than %i\n", __FUNCTION__, str, max_len);
+		return nullptr;
+	}
+
+	char* out = (char*) std::calloc(len, sizeof(u8));
+	strncpy(out, str, len - 1);
+	return out;
+}
+
+void
+utilSafeFree(void* p)
+{
+	assert(p != nullptr);
+	free(p);
+}
+
+#endif