Initial commit, still lots to do!

1 files changed, 35 insertions, 0 deletions

diff --git a/lib/helpers.h b/lib/helpers.h
new file mode 100644
index 0000000..3a94ead
--- /dev/null
+++ b/lib/helpers.h
@@ -0,0 +1,35 @@
+#ifndef MYGRATE_HELPERS_H
+#define MYGRATE_HELPERS_H
+
+#include <concepts>
+#include <cstdint>
+#include <utility>
+
+namespace MyGrate {
+	template<std::integral I>
+	constexpr inline auto
+	bitslice(const I i, uint8_t offset, uint8_t size)
+	{
+		return (i >> offset) & ((1U << size) - 1U);
+	}
+
+	template<typename X, typename... P>
+	constexpr inline void
+	verify(bool expr, P &&... p)
+	{
+		if (!expr) {
+			throw X(std::forward<P...>(p)...);
+		}
+	}
+
+	template<typename T>
+	constexpr inline auto
+	mod100_extract(T & i)
+	{
+		const auto r {i % 100};
+		i /= 100;
+		return r;
+	}
+}
+
+#endif