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authorChris Robinson <[email protected]>2020-12-27 06:43:59 -0800
committerChris Robinson <[email protected]>2020-12-27 06:43:59 -0800
commit4c0f77c13e5e38b6fb4c4e2746a6f1adf373f290 (patch)
treebd6cd5fa362961b2d13d0afa7468cf00dc14feb6
parent7833cfa8de1908710ac613ed4198f246ff0945db (diff)
Remove some unnecessary constructors
-rw-r--r--common/aloptional.h31
-rw-r--r--common/strutils.cpp6
2 files changed, 12 insertions, 25 deletions
diff --git a/common/aloptional.h b/common/aloptional.h
index f19bc288..e48711f2 100644
--- a/common/aloptional.h
+++ b/common/aloptional.h
@@ -45,27 +45,11 @@ public:
explicit optional(in_place_t, Args&& ...args) : mHasValue{true}
, mValue{std::forward<Args>(args)...}
{ }
- template<typename U, typename... Args, REQUIRES(std::is_constructible<T, std::initializer_list<U>&, Args...>::value)>
- explicit optional(in_place_t, std::initializer_list<U> il, Args&& ...args)
- : mHasValue{true}, mValue{il, std::forward<Args>(args)...}
- { }
- template<typename U=value_type, REQUIRES(std::is_constructible<T, U&&>::value &&
- !std::is_same<typename std::decay<U>::type, in_place_t>::value &&
- !std::is_same<typename std::decay<U>::type, optional<T>>::value &&
- std::is_constructible<U&&, T>::value)>
- constexpr explicit optional(U&& value) : mHasValue{true}, mValue{std::forward<U>(value)}
- { }
- template<typename U=value_type, REQUIRES(std::is_constructible<T, U&&>::value &&
- !std::is_same<typename std::decay<U>::type, in_place_t>::value &&
- !std::is_same<typename std::decay<U>::type, optional<T>>::value &&
- !std::is_constructible<U&&, T>::value)>
- constexpr optional(U&& value) : mHasValue{true}, mValue{std::forward<U>(value)}
- { }
~optional() { if(mHasValue) al::destroy_at(std::addressof(mValue)); }
optional& operator=(nullopt_t) noexcept { reset(); return *this; }
- template<REQUIRES(std::is_copy_constructible<T>::value && std::is_copy_assignable<T>::value)>
- optional& operator=(const optional &rhs)
+ std::enable_if_t<std::is_copy_constructible<T>::value && std::is_copy_assignable<T>::value,
+ optional&> operator=(const optional &rhs)
{
if(!rhs)
reset();
@@ -75,8 +59,8 @@ public:
DoConstruct(*rhs);
return *this;
}
- template<REQUIRES(std::is_move_constructible<T>::value && std::is_move_assignable<T>::value)>
- optional& operator=(optional&& rhs)
+ std::enable_if_t<std::is_move_constructible<T>::value && std::is_move_assignable<T>::value,
+ optional&> operator=(optional&& rhs)
{
if(!rhs)
reset();
@@ -86,12 +70,13 @@ public:
DoConstruct(std::move(*rhs));
return *this;
}
- template<typename U=T, REQUIRES(std::is_constructible<T, U>::value &&
+ template<typename U=T>
+ std::enable_if_t<std::is_constructible<T, U>::value &&
std::is_assignable<T&, U>::value &&
!std::is_same<typename std::decay<U>::type, optional<T>>::value &&
(!std::is_same<typename std::decay<U>::type, T>::value ||
- !std::is_scalar<U>::value))>
- optional& operator=(U&& rhs)
+ !std::is_scalar<U>::value),
+ optional&> operator=(U&& rhs)
{
if(*this)
mValue = std::forward<U>(rhs);
diff --git a/common/strutils.cpp b/common/strutils.cpp
index 870a0ed3..18c4947a 100644
--- a/common/strutils.cpp
+++ b/common/strutils.cpp
@@ -46,7 +46,8 @@ namespace al {
al::optional<std::string> getenv(const char *envname)
{
const char *str{std::getenv(envname)};
- if(str && str[0] != '\0') return str;
+ if(str && str[0] != '\0')
+ return al::make_optional<std::string>(str);
return al::nullopt;
}
@@ -54,7 +55,8 @@ al::optional<std::string> getenv(const char *envname)
al::optional<std::wstring> getenv(const WCHAR *envname)
{
const WCHAR *str{_wgetenv(envname)};
- if(str && str[0] != L'\0') return str;
+ if(str && str[0] != L'\0')
+ return al::make_optional<std::wstring>(str);
return al::nullopt;
}
#endif