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| author | Noel Grandin <noel.grandin@collabora.co.uk> | 2019-04-07 16:25:49 +0200 |
|---|---|---|
| committer | Noel Grandin <noel.grandin@collabora.co.uk> | 2019-04-08 08:52:09 +0200 |
| commit | 7be675cdfad328667bfbab043d71539dfd9e6fe6 (patch) | |
| tree | 94a83c67d26aaffb513863a6ab0e4f8f72b2dc4d /xmloff/inc/StyleMap.hxx | |
| parent | 1d556ff84dce01531ee334dc1408cebe50e97d22 (diff) | |
improve combining in hash functions
specifically, use boost::hash_combine to combine values in hash
functions, except for a couple of places where I use the
small-prime-number strategy popular in the Java world, to avoid
including boost in header files that are widely shared.
Change-Id: I0e184c9ec8803bf09fc6e84fe20131b203e1652a
Reviewed-on: https://gerrit.libreoffice.org/70384
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Diffstat (limited to 'xmloff/inc/StyleMap.hxx')
| -rw-r--r-- | xmloff/inc/StyleMap.hxx | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/xmloff/inc/StyleMap.hxx b/xmloff/inc/StyleMap.hxx index 8fb76e61104d..aef67399b8cd 100644 --- a/xmloff/inc/StyleMap.hxx +++ b/xmloff/inc/StyleMap.hxx @@ -22,6 +22,7 @@ #include <com/sun/star/lang/XUnoTunnel.hpp> #include <cppuhelper/implbase.hxx> +#include <boost/functional/hash.hpp> #include <unordered_map> struct StyleNameKey_Impl @@ -46,8 +47,10 @@ struct StyleNameHash_Impl inline size_t StyleNameHash_Impl::operator()( const StyleNameKey_Impl& r ) const { - return static_cast< size_t >( r.m_nFamily ) + - static_cast< size_t >( r.m_aName.hashCode() ); + std::size_t seed = 0; + boost::hash_combine(seed, r.m_nFamily); + boost::hash_combine(seed, r.m_aName.hashCode()); + return seed; } inline bool StyleNameHash_Impl::operator()( |