introspection: update name tests for clang-11

test/introspection.cpp

@@ -72,6 +72,40 @@ equal (A &&a, B &&b)
 }
 
 
+///----------------------------------------------------------------------------
+/// Returns true if the two strings are equal except for any embedded
+/// whitespace.
+static bool
+whitespace_equal (std::string_view a, std::string_view b)
+{
+    auto const a_size = std::ssize (a);
+    auto const b_size = std::ssize (b);
+
+    int a_cursor = 0;
+    int b_cursor = 0;
+
+    while (a_cursor < a_size && b_cursor < b_size) {
+        if (a[a_cursor] == ' ') {
+            ++a_cursor;
+            continue;
+        }
+
+        if (b[b_cursor] == ' ') {
+            ++b_cursor;
+            continue;
+        }
+
+        if (a[a_cursor] != b[b_cursor])
+            return false;
+
+        ++a_cursor;
+        ++b_cursor;
+    }
+
+    return a_cursor == a_size && b_cursor == b_size;
+}
+
+
 //-----------------------------------------------------------------------------
 int main ()
 {
@@ -139,9 +173,13 @@ int main ()
         "templated_with_type"
     );
 
-    tap.expect_eq (
+    // The trailing '>' characters are separated by whitespace in GCC, and
+    // Clang<11, but aren't meaningfully different in user interpretation.
+    tap.expect (
+        whitespace_equal (
             cruft::introspection::name::full<templated_with_type<templated_with_type<int>>> (),
-        std::string_view {"templated_with_type<templated_with_type<int> >"},
+            std::string_view {"templated_with_type<templated_with_type<int>>"}
+        ),
         "templated_with_type"
     );