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[meta] Minor

This commit is contained in:
Behdad Esfahbod 2019-05-10 21:01:19 -07:00
parent f9a96a0a97
commit 40fb36a39d
1 changed files with 3 additions and 3 deletions
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6
src/hb-meta.hh
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@ -41,8 +41,8 @@ struct hb_empty_t {};
template<typename... Ts> struct _hb_void_t { typedef void type; };
template<typename... Ts> using hb_void_t = typename _hb_void_t<Ts...>::type;
template<typename Head, typename... Ts> struct _hb_head_tt { typedef Head type; };
template<typename... Ts> using hb_head_tt = typename _hb_head_tt<Ts...>::type;
template<typename Head, typename... Ts> struct _hb_head_t { typedef Head type; };
template<typename... Ts> using hb_head_t = typename _hb_head_t<Ts...>::type;
template <typename T, T v> struct hb_integral_constant { static constexpr T value = v; };
template <bool b> using hb_bool_constant = hb_integral_constant<bool, b>;
@ -64,7 +64,7 @@ template <typename T> struct hb_is_same<T, T> : hb_true_type {};
/* Function overloading SFINAE and priority. */
#define HB_RETURN(Ret, E) -> hb_head_tt<Ret, decltype ((E))> { return (E); }
#define HB_RETURN(Ret, E) -> hb_head_t<Ret, decltype ((E))> { return (E); }
#define HB_AUTO_RETURN(E) -> decltype ((E)) { return (E); }
#define HB_VOID_RETURN(E) -> hb_void_t<decltype ((E))> { (E); }