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[cplusplus] Fix build on GCC < 7

This commit is contained in:
Kleis Auke Wolthuizen 2022-07-06 12:58:15 +02:00
parent 386e1bbad8
commit 7b51bc95d9
1 changed files with 10 additions and 2 deletions
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12
src/hb-cplusplus.hh
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@ -166,8 +166,14 @@ HB_DEFINE_VTABLE (unicode_funcs);
} // namespace hb } // namespace hb
/* Workaround for GCC < 7, see:
* https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56480
* https://stackoverflow.com/a/25594741 */
namespace std {
template<typename T> template<typename T>
struct std::hash<hb::shared_ptr<T>> struct hash<hb::shared_ptr<T>>
{ {
std::size_t operator()(const hb::shared_ptr<T>& v) const noexcept std::size_t operator()(const hb::shared_ptr<T>& v) const noexcept
{ {
@ -177,7 +183,7 @@ struct std::hash<hb::shared_ptr<T>>
}; };
template<typename T> template<typename T>
struct std::hash<hb::unique_ptr<T>> struct hash<hb::unique_ptr<T>>
{ {
std::size_t operator()(const hb::unique_ptr<T>& v) const noexcept std::size_t operator()(const hb::unique_ptr<T>& v) const noexcept
{ {
@ -187,6 +193,8 @@ struct std::hash<hb::unique_ptr<T>>
}; };
} // namespace std
#endif /* __cplusplus */ #endif /* __cplusplus */
#endif /* HB_CPLUSPLUS_HH */ #endif /* HB_CPLUSPLUS_HH */