get rid of nasty stdlib

1 files changed, 38 insertions, 0 deletions

diff --git a/lib/nes/common/utils.hh b/lib/nes/common/utils.hh
new file mode 100644
index 0000000..460d0d5
--- /dev/null
+++ b/lib/nes/common/utils.hh
@@ -0,0 +1,38 @@
+#pragma once
+
+#include "nes/common/types.hh"
+
+namespace nes
+{
+	template<typename T>
+	auto launder(T* p) -> T*
+	{
+		return __builtin_launder(p);
+	}
+
+	template<typename T>
+	auto copy(T const* src, T* dst, u32 const length)
+	{
+		for (auto i = u32{ 0 }; i < length; ++i) { dst[i] = src[i]; }
+	}
+
+	template<typename T>
+	auto min(T const a, T const b)
+	{
+		return a < b ? a : b;
+	}
+
+	template<typename T>
+	auto max(T const a, T const b)
+	{
+		return a > b ? a : b;
+	}
+
+	template<typename T>
+	auto swap(T& a, T& b) -> void
+	{
+		auto const tmp = a;
+		a = b;
+		b = tmp;
+	}
+} // namespace nes
\ No newline at end of file