feat(math): add math core and replace FF_ABS macro with ff_absi

1 files changed, 50 insertions, 0 deletions

diff --git a/include/tinyff/math/core.h b/include/tinyff/math/core.h
new file mode 100644
index 0000000..1db7a40
--- /dev/null
+++ b/include/tinyff/math/core.h
@@ -0,0 +1,50 @@
+#ifndef FF_MATH_H
+#define FF_MATH_H
+
+// NOTE: I'm not going to use macros until I feel like my trash code
+// might actually be used in prod. For now im using my beloved
+// static inline functions. Oh god dennis richie, i love you so bad <3
+
+
+
+static inline int ff_maxi(int a, int b)
+{
+    return a > b ? a : b;
+}
+
+static inline float ff_maxf(float a, float b)
+{
+    return a > b ? a : b;
+}
+
+static inline int ff_mini(int a, int b)
+{
+    return a < b ? a : b;
+}
+
+static inline float ff_minf(float a, float b)
+{
+    return a < b ? a : b;
+}
+
+static inline int ff_clampi(int x, int low, int high)
+{
+    return ff_maxi(low, ff_mini(x, high));
+}
+
+static inline float ff_clampf(float x, float low, float high)
+{
+    return ff_maxf(low, ff_minf(x, high));
+}
+
+static inline int ff_absi(int x)
+{
+    return x < 0 ? -x : x;
+}
+
+static inline float ff_absf(float x)
+{
+    return x < 0 ? -x : x;
+}
+
+#endif
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