ci: clang-16 support added to CI

.github/workflows/ci-conan.yml

@@ -149,6 +149,19 @@ jobs:
                 },
               lib: "libc++",
             }
+          - {
+              name: "Ubuntu Clang-16 + libc++",
+              os: ubuntu-22.04,
+              compiler:
+                {
+                  type: CLANG,
+                  version: 16,
+                  cc: "clang-16",
+                  cxx: "clang++-16",
+                  std: 20,
+                },
+              lib: "libc++",
+            }
           - {
               name: "MacOS Apple Clang 13",
               os: macos-11,

.github/workflows/ci-test-package-cmake.yml

@@ -153,6 +153,19 @@ jobs:
                 },
               lib: "libc++",
             }
+          - {
+              name: "Ubuntu Clang-16 + libc++",
+              os: ubuntu-22.04,
+              compiler:
+                {
+                  type: CLANG,
+                  version: 16,
+                  cc: "clang-16",
+                  cxx: "clang++-16",
+                  std: 20,
+                },
+              lib: "libc++",
+            }
           - {
               name: "MacOS Apple Clang 13",
               os: macos-11,

conanfile.py

@@ -146,7 +146,7 @@ class MPUnitsConan(ConanFile):
             str(self._full_compiler_version), min_version
         ):
             raise ConanInvalidConfiguration(
-                f"{self.ref} requires at least {compiler} {min_version}"
+                f"{self.ref} requires at least {compiler} {min_version} ({self._full_compiler_version} in use)"
             )
 
     def layout(self):