core: add a header for utility functions

Add a header for dumping utility functions that are commonly used across
several files. This header should only contain small, inline-able
functions of no more than 5-10 lines of code.

Signed-off-by: Danny Holman <dholman@gymli.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/rune_util.h b/include/rune_util.h
new file mode 100644
index 0000000..f0613c9
--- /dev/null
+++ b/include/rune_util.h
@@ -0,0 +1,11 @@
+#ifndef RUNE_UTIL_H
+#define RUNE_UTIL_H
+
+#include <stdint.h>
+
+static inline uint32_t clamp(uint32_t value, float min, float max) {
+        const uint32_t ret = value < min ? min : value;
+        return ret > max ? max : ret;
+}
+
+#endif