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Merge pull request #199 from Pega5us/fix-issue#197-bitceil

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🐛 Fix bit_ceil() to return 1 for input 0 as per specification
This commit is contained in:
Peter Dimov
2025-06-06 18:17:15 +03:00
committed by GitHub
parent 21761b3f62 f32cb2f696
commit 11d367377f
2 changed files with 3 additions and 3 deletions
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4
include/boost/core/bit.hpp
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@@ -703,7 +703,7 @@ BOOST_CXX14_CONSTEXPR inline boost::uint32_t bit_ceil_impl( boost::uint32_t x )
{ {
if( x == 0 ) if( x == 0 )
{ {
return 0; return 1;
} }
--x; --x;
@@ -723,7 +723,7 @@ BOOST_CXX14_CONSTEXPR inline boost::uint64_t bit_ceil_impl( boost::uint64_t x )
{ {
if( x == 0 ) if( x == 0 )
{ {
return 0; return 1;
} }
--x; --x;

2
test/bit_ceil_test.cpp
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@@ -21,7 +21,7 @@ template<class T> void test_bit_ceil( T x )
if( x == 0 ) if( x == 0 )
{ {
BOOST_TEST_EQ( y, 0 ); BOOST_TEST_EQ( y, 1 );
} }
else else
{ {