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bricks: add support for gcc prior to 4.9

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* bricks/brick-bitlevel, bricks/brick-hashset,
bricks/brick-shmem, bricks/brick-types: here.
This commit is contained in:
Etienne Renault 2016-12-06 15:35:51 +01:00
parent 6c5c308ea8
commit a308d1a60a
4 changed files with 15 additions and 6 deletions
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10
bricks/brick-bitlevel
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@ -88,7 +88,10 @@ struct bvpair
constexpr bvpair( L l, H h = 0 ) : low( l ), high( h ) {}
constexpr bvpair() = default;
explicit constexpr operator bool() const { return low || high; }
constexpr bvpair operator<<( int s ) const
#if ((__GNUC__ >= 4 && __GNUC_MINOR__ > 9) || (__clang_major__ == 3 && __clang_minor__ >= 6))
constexpr
#endif
bvpair operator<<( int s ) const
{
int rem = 8 * sizeof( low ) - s;
int unshift = std::max( rem, 0 );
@ -96,7 +99,10 @@ struct bvpair
H carry = ( low & ~ones< L >( unshift ) ) >> unshift;
return bvpair( low << s, ( high << s ) | ( carry << shift ) );
}
constexpr bvpair operator>>( int s ) const
#if ((__GNUC__ >= 4 && __GNUC_MINOR__ > 9) || (__clang_major__ == 3 && __clang_minor__ >= 6))
constexpr
#endif
bvpair operator>>( int s ) const
{
int rem = 8 * sizeof( low ) - s;
int unshift = std::max( rem, 0 );