[PATCH v3 3/5] libstdc++: Restructure mdspan tests to reuse IntLike.

[Luc Grosheintz]

The class IntLike is used for testing extents with user-defined classes
that convert to int. This commit places the class into a separate header
file. This allows it to be reused across different parts of the mdspan
related testsuite.

libstdc++-v3/ChangeLog:

	* testsuite/23_containers/mdspan/extents/custom_integer.cc:
	Delete IntLike and include "int_like.h".
	* testsuite/23_containers/mdspan/extents/int_like.h: Add
	IntLike.

Signed-off-by: Luc Grosheintz <luc.grosheintz@gmail.com>
---
 .../mdspan/extents/custom_integer.cc          | 27 +-----------------
 .../23_containers/mdspan/extents/int_like.h   | 28 +++++++++++++++++++
 2 files changed, 29 insertions(+), 26 deletions(-)
 create mode 100644 libstdc++-v3/testsuite/23_containers/mdspan/extents/int_like.h

diff --git a/libstdc++-v3/testsuite/23_containers/mdspan/extents/custom_integer.cc b/libstdc++-v3/testsuite/23_containers/mdspan/extents/custom_integer.cc
index 2907ad12ae7..404755bd5ac 100644
--- a/libstdc++-v3/testsuite/23_containers/mdspan/extents/custom_integer.cc
+++ b/libstdc++-v3/testsuite/23_containers/mdspan/extents/custom_integer.cc
@@ -2,38 +2,13 @@
 #include <mdspan>
 
 #include <testsuite_hooks.h>
+#include "int_like.h"
 
 // Test construction from a custom integer-like object, that has
 // no copy/move ctor or copy/move assignment operator.
 
 constexpr size_t dyn = std::dynamic_extent;
 
-class IntLike
-{
-public:
-  explicit
-  IntLike(int i)
-  : _M_i(i)
-  { }
-
-  IntLike() = delete;
-  IntLike(const IntLike&) = delete;
-  IntLike(IntLike&&) = delete;
-
-  const IntLike&
-  operator=(const IntLike&) = delete;
-
-  const IntLike&
-  operator=(IntLike&&) = delete;
-
-  constexpr
-  operator int() const noexcept
-  { return _M_i; }
-
-private:
-  int _M_i;
-};
-
 static_assert(std::is_convertible_v<IntLike, int>);
 static_assert(std::is_nothrow_constructible_v<int, IntLike>);
 
diff --git a/libstdc++-v3/testsuite/23_containers/mdspan/extents/int_like.h b/libstdc++-v3/testsuite/23_containers/mdspan/extents/int_like.h
new file mode 100644
index 00000000000..7785d2ffe95
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/mdspan/extents/int_like.h
@@ -0,0 +1,28 @@
+#pragma once
+
+class IntLike
+{
+public:
+  explicit
+  IntLike(int i)
+  : _M_i(i)
+  { }
+
+  IntLike() = delete;
+  IntLike(const IntLike&) = delete;
+  IntLike(IntLike&&) = delete;
+
+  const IntLike&
+  operator=(const IntLike&) = delete;
+
+  const IntLike&
+  operator=(IntLike&&) = delete;
+
+  constexpr
+  operator int() const noexcept
+  { return _M_i; }
+
+private:
+  int _M_i;
+};
+
-- 
2.49.0