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std.math.divCeil: move compile error to top

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This commit is contained in:
Kate Tsuyu
2020-08-29 00:31:49 -04:00
parent 933bfcff64
commit 49e67ce0e8
1 changed files with 5 additions and 2 deletions
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7
lib/std/math.zig
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@@ -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,
}
}