From 49e67ce0e8a15e3701e01395c112c4e1ae331972 Mon Sep 17 00:00:00 2001
From: Kate Tsuyu <kate@kxt.io>
Date: Sat, 29 Aug 2020 00:31:49 -0400
Subject: std.math.divCeil: move compile error to top

---
 lib/std/math.zig | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'lib/std')

diff --git a/lib/std/math.zig b/lib/std/math.zig
index f5aa9e4b36..a66d47412d 100644
--- a/lib/std/math.zig
+++ b/lib/std/math.zig
@@ -623,7 +623,10 @@ fn testDivFloor() void {
 
 pub fn divCeil(comptime T: type, numerator: T, denominator: T) !T {
     @setRuntimeSafety(false);
-    if (denominator == 0) return error.DivisionByZero;
+    if (!(comptime std.meta.trait.isNumber(T)))
+        @compileError("divCeil unsupported on " ++ @typeName(T));
+    if (denominator == 0)
+        return error.DivisionByZero;
     const info = @typeInfo(T);
     switch (info) {
         .ComptimeFloat, .Float => return @ceil(numerator / denominator),
@@ -637,7 +640,7 @@ pub fn divCeil(comptime T: type, numerator: T, denominator: T) !T {
                 return @divFloor(numerator - 1, denominator) + 1;
             return @divTrunc(numerator, denominator);
         },
-        else => @compileError("divCeil unsupported on " ++ @typeName(T)),
+        else => unreachable,
     }
 }
 
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