https://issues.dlang.org/show_bug.cgi?id=15454
Issue ID: 15454
Summary: core.checkedint enhancement
Product: D
Version: D2
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P1
Component: druntime
Assignee: [email protected]
Reporter: [email protected]
Change the overflow type of muls and mulu from bool to the underlying integer
type. Since these functions are intended to be treated as intrinsics, the
overflow can be easily obtained directly from the x86 mul / arm umull
instruction.
pure nothrow @nogc @safe uint mulu(uint x, uint y, ref uint overflow);
pure nothrow @nogc @safe ulong mulu(ulong x, ulong y, ref ulong overflow);
pure nothrow @nogc @safe int muls(int x, int y, ref int overflow);
pure nothrow @nogc @safe long muls(long x, long y, ref long overflow);
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