http://d.puremagic.com/issues/show_bug.cgi?id=5703
Summary: std.intrinsic. and core.bitop.bsf, bsr and bswap
should be CTFE-able
Product: D
Version: D2
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: druntime
AssignedTo: nob...@puremagic.com
ReportedBy: kenn...@gmail.com
--- Comment #0 from kenn...@gmail.com 2011-03-05 06:20:20 PST ---
import core.bitop;
enum x = bsf(0b111100);
enum y = bsr(0b111100);
enum z = bswap(0b111100);
static assert(x == 2);
static assert(y == 5);
static assert(z == 0x3C000000);
The three functions bsr, bsf and bswap are pure nothrow, but cannot be used in
CTFE because there is no source code.
These functions should be rewritten in D like bitswap and popcnt.
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