initial commit

oscar64/autotest/floatinttest.c

@@ -0,0 +1,100 @@
+#include <assert.h>
+#include <stdio.h>
+#include <math.h>
+
+
+int main(void)
+{
+	float			a;
+	int 			i;
+	long			li;
+	unsigned		u;
+	unsigned long	lu;
+
+	a = 1.0;
+	i = 1;	
+	for(int j=0; j<15; j++)
+	{
+		assert(i == (int)a);
+		assert(a == (float)i);
+		a *= 2.0;
+		i <<= 1;
+	}
+
+	a = -1.0;
+	i = -1;	
+	for(int j=0; j<15; j++)
+	{
+		assert(i == (int)a);
+		assert(a == (float)i);
+		a *= 2.0;
+		i <<= 1;
+	}
+
+	a = 1.0;
+	i = 1;	
+	for(int j=0; j<15; j++)
+	{
+		assert(i == (int)a);
+		assert(a == (float)i);
+		a *= 2.0;
+		a += 1.0;
+		i <<= 1;
+		i += 1;
+	}
+
+
+	a = 1.0;
+	u = 1;	
+	for(int j=0; j<16; j++)
+	{
+		assert(u == (unsigned)a);
+		assert(a == (float)u);
+		a *= 2.0;
+		u <<= 1;
+	}
+
+	a = 1.0;
+	u = 1;	
+	for(int j=0; j<16; j++)
+	{
+		assert(u == (unsigned)a);
+		assert(a == (float)u);
+		a *= 2.0;
+		a += 1;
+		u <<= 1;
+		u += 1;
+	}
+
+	a = 1.0;
+	li = 1;	
+	for(int j=0; j<31; j++)
+	{
+		assert(li == (long)a);
+		assert(a == (float)li);
+		a *= 2.0;
+		li <<= 1;
+	}
+
+	a = -1.0;
+	li = -1;	
+	for(int j=0; j<31; j++)
+	{
+		assert(li == (long)a);
+		assert(a == (float)li);
+		a *= 2.0;
+		li <<= 1;
+	}
+
+	a = 1.0;
+	lu = 1;	
+	for(int j=0; j<32; j++)
+	{
+		assert(lu == (unsigned long)a);
+		assert(a == (float)lu);
+		a *= 2.0;
+		lu <<= 1;
+	}
+
+	return 0;
+}