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| author | flywind <xzsflywind@gmail.com> | 2021-03-22 07:36:48 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-03-22 00:36:48 +0100 |
| commit | c8dda867f2a2607d4049759d09593a66b1697d02 (patch) | |
| tree | bee5639067062f84a1ae1cd0561f5952e915e7e9 /lib/std | |
| parent | 23fd0984283fe94108dea5d569450f5e0564c59d (diff) | |
| download | Nim-c8dda867f2a2607d4049759d09593a66b1697d02.tar.gz | |
close #11330 sets uses optimized countSetBits (#17334)
* Update lib/pure/bitops.nim * Update lib/system/sets.nim * Apply suggestions from code review Co-authored-by: Andreas Rumpf <rumpf_a@web.de>
Diffstat (limited to 'lib/std')
| -rw-r--r-- | lib/std/private/vmutils.nim | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/lib/std/private/vmutils.nim b/lib/std/private/vmutils.nim new file mode 100644 index 000000000..d54977b4e --- /dev/null +++ b/lib/std/private/vmutils.nim @@ -0,0 +1,17 @@ +template forwardImpl*(impl, arg) {.dirty.} = + when sizeof(x) <= 4: + when x is SomeSignedInt: + impl(cast[uint32](x.int32)) + else: + impl(x.uint32) + else: + when x is SomeSignedInt: + impl(cast[uint64](x.int64)) + else: + impl(x.uint64) + +template toUnsigned*(x: int8): uint8 = cast[uint8](x) +template toUnsigned*(x: int16): uint16 = cast[uint16](x) +template toUnsigned*(x: int32): uint32 = cast[uint32](x) +template toUnsigned*(x: int64): uint64 = cast[uint64](x) +template toUnsigned*(x: int): uint = cast[uint](x) |