Merge pull request #886 from JordanMaples/dev/jomaples/build_matrix

compiler support revision

include/gsl/gsl_util

@@ -30,18 +30,8 @@
 #pragma warning(push)
 #pragma warning(disable : 4127) // conditional expression is constant
 
-#if _MSC_VER < 1910
-#pragma push_macro("constexpr")
-#define constexpr /*constexpr*/
-#endif            // _MSC_VER < 1910
 #endif            // _MSC_VER
 
-#if (defined(_MSC_VER) && _MSC_VER < 1910) || (!defined(__clang__) && defined(__GNUC__) && __GNUC__ < 6)
-#define GSL_CONSTEXPR_NARROW 0
-#else
-#define GSL_CONSTEXPR_NARROW 1
-#endif
-
 namespace gsl
 {
 //
@@ -113,9 +103,7 @@ namespace details
 template <class T, class U>
 GSL_SUPPRESS(type.1) // NO-FORMAT: attribute
 GSL_SUPPRESS(f.6) // NO-FORMAT: attribute // TODO: MSVC /analyze does not recognise noexcept(false)
-#if GSL_CONSTEXPR_NARROW
 constexpr
-#endif
 T narrow(U u) noexcept(false)
 {
     T t = narrow_cast<T>(u);
@@ -158,11 +146,6 @@ constexpr T at(const std::initializer_list<T> cont, const index i)
 } // namespace gsl
 
 #if defined(_MSC_VER) && !defined(__clang__)
-#if _MSC_VER < 1910
-#undef constexpr
-#pragma pop_macro("constexpr")
-
-#endif // _MSC_VER < 1910
 
 #pragma warning(pop)
 

include/gsl/span

@@ -38,12 +38,6 @@
 #pragma warning(disable : 26495) // uninitalized member when constructor calls constructor
 #pragma warning(disable : 26446) // parser bug does not allow attributes on some templates
 
-#if _MSC_VER < 1910
-#pragma push_macro("constexpr")
-#define constexpr /*constexpr*/
-#define GSL_USE_STATIC_CONSTEXPR_WORKAROUND
-
-#endif // _MSC_VER < 1910
 #endif // _MSC_VER
 
 // See if we have enough C++17 power to use a static constexpr data member
@@ -803,11 +797,6 @@ as_writable_bytes(span<ElementType, Extent> s) noexcept
 } // namespace gsl
 
 #if defined(_MSC_VER) && !defined(__clang__)
-#if _MSC_VER < 1910
-#undef constexpr
-#pragma pop_macro("constexpr")
-
-#endif // _MSC_VER < 1910
 
 #pragma warning(pop)
 #endif // _MSC_VER

include/gsl/string_span

@@ -36,11 +36,6 @@
 #pragma warning(disable : 26446) // TODO: bug in parser - attributes and templates
 #pragma warning(disable : 26481) // TODO: suppress does not work inside templates sometimes
 
-#if _MSC_VER < 1910
-#pragma push_macro("constexpr")
-#define constexpr /*constexpr*/
-
-#endif // _MSC_VER < 1910
 #endif // _MSC_VER
 
 namespace gsl
@@ -706,11 +701,6 @@ bool operator>=(const T& one, gsl::basic_string_span<CharT, Extent> other)
 #if defined(_MSC_VER) && !defined(__clang__)
 #pragma warning(pop)
 
-#if _MSC_VER < 1910
-#undef constexpr
-#pragma pop_macro("constexpr")
-
-#endif // _MSC_VER < 1910
 #endif // _MSC_VER
 
 #endif // GSL_STRING_SPAN_H