it's a natural choice and compatible with a version found in NetBSD libc.
Signed-off-by: YAMAMOTO Takashi <y...@mwd.biglobe.ne.jp>
---
lib/util.c | 2 +-
lib/util.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/util.c b/lib/util.c
index cbaffa7..cd4019e 100644
--- a/lib/util.c
+++ b/lib/util.c
@@ -843,7 +843,7 @@ raw_ctz(uint32_t n)
#endif
/* Returns the number of 1-bits in 'x', between 0 and 32 inclusive. */
-int
+unsigned int
popcount(uint32_t x)
{
/* In my testing, this implementation is over twice as fast as any other
diff --git a/lib/util.h b/lib/util.h
index b944ec7..4f6a201 100644
--- a/lib/util.h
+++ b/lib/util.h
@@ -265,7 +265,7 @@ ctz(uint32_t n)
int log_2_floor(uint32_t);
int log_2_ceil(uint32_t);
-int popcount(uint32_t);
+unsigned int popcount(uint32_t);
/* Returns the rightmost 1-bit in 'x' (e.g. 01011000 => 00001000), or 0 if 'x'
* is 0. */
--
1.8.0.1
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