initial

Makefile

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+LIBFILES=sileee.c
+TESTFILES=$(wildcard tests/*.c)
+
+test:
+	gcc $(LIBFILES) $(TESTFILES) -o test_silly
+	./test_silly
+	rm test_silly

README.md

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+# silleee
+
+A reboot of [silly](https://github.com/hellerve/silly) that tries
+to implement IEEE-754 floating point numbers. The audacity!
+
+The name is a mashup of `silly` and `IEEE-754`.
+
+WIP.

silleee.c

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+silleee silleee_sub(silleee x, silleee y) {
+  y ^= 0x80000000;
+  return silleee_add(x, y);
+}
+
+silleee silleee_add(silleeee x, silleeee y) {
+}

silleee.h

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+#define asreal(x) (*((float *) &x))
+#define exponent(x) (((x >> 23) & 0xff) - 127)
+#define sign_bit 1 << 31
+#define sign(x) ((x & sign_bit) >> 31)
+#define mantissa(x) ((x & sign_bit) ? ((x & 0x7fffff) | 0x800000) : 0)
+
+typedef long unsigned silleee;
+
+sillee silleee_add(sillee, sillee);
+sillee silleee_sub(sillee, sillee);

tests/test.c

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+#include "greatest.h"
+#include "../silleee.h"
+
+#define DELTA 0.01
+
+#define ASSERT_DELTA(expected, actual) {\
+  double delta = expected-actual;\
+  ASSERT_IN_RANGE(0, delta, DELTA);\
+}
+
+TEST silleee_zeros_is_zero() {
+}
+
+SUITE(tests) {
+    RUN_TEST(silly_zeros_is_zero);
+}
+
+GREATEST_MAIN_DEFS();
+
+int main(int argc, char **argv) {
+    GREATEST_MAIN_BEGIN();
+
+    RUN_SUITE(tests);
+
+    GREATEST_MAIN_END();
+}