Assume has_is_subnormal

Author: cuviper

build.rs

@@ -1,7 +1,6 @@
 fn main() {
     let ac = autocfg::new();
 
-    ac.emit_expression_cfg("1f64.is_subnormal()", "has_is_subnormal");
     ac.emit_expression_cfg("1f64.total_cmp(&2f64)", "has_total_cmp");
 
     ac.emit_expression_cfg("1u32.to_ne_bytes()", "has_int_to_from_bytes");

src/float.rs

@@ -790,6 +790,7 @@ impl FloatCore for f32 {
         Self::is_infinite(self) -> bool;
         Self::is_finite(self) -> bool;
         Self::is_normal(self) -> bool;
+        Self::is_subnormal(self) -> bool;
         Self::classify(self) -> FpCategory;
         Self::is_sign_positive(self) -> bool;
         Self::is_sign_negative(self) -> bool;
@@ -800,11 +801,6 @@ impl FloatCore for f32 {
         Self::to_radians(self) -> Self;
     }
 
-    #[cfg(has_is_subnormal)]
-    forward! {
-        Self::is_subnormal(self) -> bool;
-    }
-
     #[cfg(feature = "std")]
     forward! {
         Self::floor(self) -> Self;
@@ -855,6 +851,7 @@ impl FloatCore for f64 {
         Self::is_infinite(self) -> bool;
         Self::is_finite(self) -> bool;
         Self::is_normal(self) -> bool;
+        Self::is_subnormal(self) -> bool;
         Self::classify(self) -> FpCategory;
         Self::is_sign_positive(self) -> bool;
         Self::is_sign_negative(self) -> bool;
@@ -865,11 +862,6 @@ impl FloatCore for f64 {
         Self::to_radians(self) -> Self;
     }
 
-    #[cfg(has_is_subnormal)]
-    forward! {
-        Self::is_subnormal(self) -> bool;
-    }
-
     #[cfg(feature = "std")]
     forward! {
         Self::floor(self) -> Self;
@@ -1901,6 +1893,7 @@ macro_rules! float_impl_std {
                 Self::is_infinite(self) -> bool;
                 Self::is_finite(self) -> bool;
                 Self::is_normal(self) -> bool;
+                Self::is_subnormal(self) -> bool;
                 Self::classify(self) -> FpCategory;
                 Self::floor(self) -> Self;
                 Self::ceil(self) -> Self;
@@ -1946,11 +1939,6 @@ macro_rules! float_impl_std {
                 Self::atanh(self) -> Self;
                 Self::copysign(self, sign: Self) -> Self;
             }
-
-            #[cfg(has_is_subnormal)]
-            forward! {
-                Self::is_subnormal(self) -> bool;
-            }
         }
     };
 }
@@ -1989,6 +1977,7 @@ macro_rules! float_impl_libm {
             Self::is_infinite(self) -> bool;
             Self::is_finite(self) -> bool;
             Self::is_normal(self) -> bool;
+            Self::is_subnormal(self) -> bool;
             Self::classify(self) -> FpCategory;
             Self::is_sign_positive(self) -> bool;
             Self::is_sign_negative(self) -> bool;
@@ -1999,11 +1988,6 @@ macro_rules! float_impl_libm {
             Self::to_radians(self) -> Self;
         }
 
-        #[cfg(has_is_subnormal)]
-        forward! {
-            Self::is_subnormal(self) -> bool;
-        }
-
         forward! {
             FloatCore::signum(self) -> Self;
             FloatCore::powi(self, n: i32) -> Self;