[std.math.traits] Add error message for DMD on Arm targeting X86

thewilsonator · thewilsonator · commit 57dbfffc27bd · 2026-04-25T12:04:52.000+08:00
diff --git a/std/math/traits.d b/std/math/traits.d
@@ -981,6 +981,17 @@ template floatTraits(T)
                 enum SIGNPOS_BYTE = 0;
             }
         }
+        else static if (T.sizeof == 16)
+        {
+            version (DigialMars)
+            {
+                version (X86_64)
+                    static assert(false,"No traits support for " ~ T.stringof ~
+                                  ". If you are on ARM, DMD is trying to target X86_64.");
+            }
+            else
+                static assert(false, "No traits support for " ~ T.stringof);
+        }
         else
             static assert(false, "No traits support for " ~ T.stringof);
     }

Original file line number	Diff line number	Diff line change
`@@ -981,6 +981,17 @@ template floatTraits(T)`
`981`	`981`	`enum SIGNPOS_BYTE = 0;`
`982`	`982`	`}`
`983`	`983`	`}`
	`984`	`+ else static if (T.sizeof == 16)`
	`985`	`+ {`
	`986`	`+ version (DigialMars)`
	`987`	`+ {`
	`988`	`+ version (X86_64)`
	`989`	`+ static assert(false,"No traits support for " ~ T.stringof ~`
	`990`	`+ ". If you are on ARM, DMD is trying to target X86_64.");`
	`991`	`+ }`
	`992`	`+ else`
	`993`	`+ static assert(false, "No traits support for " ~ T.stringof);`
	`994`	`+ }`
`984`	`995`	`else`
`985`	`996`	`static assert(false, "No traits support for " ~ T.stringof);`
`986`	`997`	`}`