initial

1 files changed, 32 insertions, 0 deletions

diff --git a/libk/src/internal/libm.h b/libk/src/internal/libm.h
new file mode 100644
index 0000000..6c47502
--- /dev/null
+++ b/libk/src/internal/libm.h
@@ -0,0 +1,32 @@
+#pragma once
+
+#define fp_force_evalf fp_force_evalf
+static inline void fp_force_evalf(float x) {
+	volatile float y;
+	y = x;
+    (void)y;
+}
+
+#define fp_force_eval fp_force_eval
+static inline void fp_force_eval(double x) {
+	volatile double y;
+	y = x;
+    (void)y;
+}
+
+#define fp_force_evall fp_force_evall
+static inline void fp_force_evall(long double x) {
+	volatile long double y;
+	y = x;
+    (void)y;
+}
+
+#define FORCE_EVAL(x) do { \
+	if (sizeof(x) == sizeof(float)) { \
+		fp_force_evalf(x); \
+	} else if (sizeof(x) == sizeof(double)) { \
+		fp_force_eval(x); \
+	} else { \
+		fp_force_evall(x); \
+	} \
+} while(0)