[to squash] use casts directly in tests, use LIBC_INLINE and prefixes

Signed-off-by: Shreeyash Pandey <[email protected]>

Author: bojle

libc/src/__support/fixed_point/fx_bits.h

@@ -224,8 +224,8 @@ idiv(T x, T y) {
   return static_cast<XType>(result);
 }
 
-inline long accum nrstep(long accum d, long accum x0) {
-  auto v = x0 * (2 - (d * x0));
+LIBC_INLINE long accum nrstep(long accum d, long accum x0) {
+  auto v = x0 * (2.lk - (d * x0));
   return v;
 }
 

libc/test/src/stdfix/DivITest.h

@@ -21,25 +21,11 @@ class DivITest : public LIBC_NAMESPACE::testing::Test {
   typedef XType (*DivIFunc)(int, int);
 
   void testBasic(DivIFunc func) {
-    auto c1 = func(2, 3);
-    auto e1 = 0.666666;
-    EXPECT_EQ(static_cast<XType>(c1), static_cast<XType>(e1));
-
-    c1 = func(3, 4);
-    e1 = 0.75;
-    EXPECT_EQ(static_cast<XType>(c1), static_cast<XType>(e1));
-
-    c1 = func(1043, 2764);
-    e1 = 0.37735;
-    EXPECT_EQ(static_cast<XType>(c1), static_cast<XType>(e1));
-
-    c1 = func(60000, 720293);
-    e1 = 0.083299;
-    EXPECT_EQ(static_cast<XType>(c1), static_cast<XType>(e1));
-
-    c1 = func(7, 3);
-    e1 = 2.33333;
-    EXPECT_EQ(static_cast<XType>(c1), static_cast<XType>(e1));
+    EXPECT_EQ(static_cast<XType>(func(128,256)), static_cast<XType>(0.5));
+    EXPECT_EQ(static_cast<XType>(func(2,3)), static_cast<XType>(0.666666));
+    EXPECT_EQ(static_cast<XType>(func(3,4)), static_cast<XType>(0.75));
+    EXPECT_EQ(static_cast<XType>(func(1043, 2764)), static_cast<XType>(0.37735));
+    EXPECT_EQ(static_cast<XType>(func(60000, 720293)), static_cast<XType>(0.083299));
   }
 };