mattermost-community-enterp.../vendor/github.com/RoaringBitmap/roaring/v2/clz_compat.go
Claude ec1f89217a Merge: Complete Mattermost Server with Community Enterprise
Full Mattermost server source with integrated Community Enterprise features.
Includes vendor directory for offline/air-gapped builds.

Structure:
- enterprise-impl/: Enterprise feature implementations
- enterprise-community/: Init files that register implementations
- enterprise/: Bridge imports (community_imports.go)
- vendor/: All dependencies for offline builds

Build (online):
  go build ./cmd/mattermost

Build (offline/air-gapped):
  go build -mod=vendor ./cmd/mattermost

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-17 23:59:07 +09:00

38 lines
479 B
Go

//go:build !go1.9
// +build !go1.9
package roaring
// LeadingZeroBits returns the number of consecutive most significant zero
// bits of x.
func countLeadingZeros(i uint64) int {
if i == 0 {
return 64
}
n := 1
x := uint32(i >> 32)
if x == 0 {
n += 32
x = uint32(i)
}
if (x >> 16) == 0 {
n += 16
x <<= 16
}
if (x >> 24) == 0 {
n += 8
x <<= 8
}
if x>>28 == 0 {
n += 4
x <<= 4
}
if x>>30 == 0 {
n += 2
x <<= 2
}
n -= int(x >> 31)
return n
}