Add unittests for CTFE and correct error message.

dlang · Jan 28, 2021 · 9cc5185 · 9cc5185
1 parent d4ab3e3
commit 9cc5185
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/std/format.d b/std/format.d
@@ -2587,7 +2587,7 @@ private void formatUnsigned(Writer, T, Char)
 }
 
 private enum ctfpMessage = "Cannot format all floating point types at compile-time "
-    ~ "(float and double with %a/%A and %e/%E do work)";
+    ~ "(float and double with %a/%A, %e/%E and %f/%F do work)";
 
 private enum RoundingMode { up, down, toZero, toNearestTiesToEven, toNearestTiesAwayFromZero }
 
@@ -3049,10 +3049,17 @@ useSnprintf:
     static assert(format("%e",-1.234e156) == "-1.234000e+156");
     static assert(format("%a",1.0) == "0x1p+0");
     static assert(format("%a",-1.234e156) == "-0x1.7024c96ca3ce4p+518");
+    static assert(format("%f",1.0) == "1.000000");
+    static assert(format("%f",-1.234e156) ==
+                  "-123399999999999990477495546305353609103201879173427886566531" ~
+                  "0740685826234179310516880117527217443004051984432279880308552" ~
+                  "009640198043032289366552939010719744.000000");
     static assert(format("%e",1.0f) == "1.000000e+00");
     static assert(format("%e",-1.234e23f) == "-1.234000e+23");
     static assert(format("%a",1.0f) == "0x1p+0");
     static assert(format("%a",-1.234e23f) == "-0x1.a2187p+76");
+    static assert(format("%f",1.0f) == "1.000000");
+    static assert(format("%f",-1.234e23f) == "-123399998884238311030784.000000");
 }
 
 /*