Suppress (potential) bogus GCC 12 -Wrestrict warnings

3 files changed, 10 insertions, 10 deletions

diff --git a/libbrep/build.cxx b/libbrep/build.cxx
index 03775c4..c095b32 100644
--- a/libbrep/build.cxx
+++ b/libbrep/build.cxx
@@ -24,7 +24,7 @@ namespace brep
   {
          if (s == "building") return build_state::building;
     else if (s == "built")    return build_state::built;
-    else throw invalid_argument ("invalid build state '" + s + "'");
+    else throw invalid_argument ("invalid build state '" + s + '\'');
   }
 
   // force_state
@@ -48,7 +48,7 @@ namespace brep
          if (s == "unforced") return force_state::unforced;
     else if (s == "forcing")  return force_state::forcing;
     else if (s == "forced")   return force_state::forced;
-    else throw invalid_argument ("invalid force state '" + s + "'");
+    else throw invalid_argument ("invalid force state '" + s + '\'');
   }
 
   // build
diff --git a/libbrep/common.cxx b/libbrep/common.cxx
index 8964e0a..4f729a3 100644
--- a/libbrep/common.cxx
+++ b/libbrep/common.cxx
@@ -30,6 +30,6 @@ namespace brep
     else if (r == "test")        return unbuildable_reason::test;
     else if (r == "external")    return unbuildable_reason::external;
     else if (r == "unbuildable") return unbuildable_reason::unbuildable;
-    else throw invalid_argument ("invalid unbuildable reason '" + r + "'");
+    else throw invalid_argument ("invalid unbuildable reason '" + r + '\'');
   }
 }
diff --git a/libbrep/package.cxx b/libbrep/package.cxx
index 65fa1ba..5f99fbb 100644
--- a/libbrep/package.cxx
+++ b/libbrep/package.cxx
@@ -161,11 +161,11 @@ namespace brep
     //   Probably drop-box would be better as also tells what are
     //   the available internal repositories.
     //
-    string k (project.string () + " " + name.string () + " " +
-              version.string () + " " + version.string (true));
+    string k (project.string () + ' ' + name.string () + ' ' +
+              version.string () + ' ' + version.string (true));
 
     if (upstream_version)
-      k += " " + *upstream_version;
+      k += ' ' + *upstream_version;
 
     // Add licenses to search keywords.
     //
@@ -173,13 +173,13 @@ namespace brep
     {
       for (const auto& l: la)
       {
-        k += " " + l;
+        k += ' ' + l;
 
         // If license is say LGPLv2 then LGPL is also a search keyword.
         //
         size_t n (l.size ());
         if (n > 2 && l[n - 2] == 'v' && l[n - 1] >= '0' && l[n - 1] <= '9')
-          k += " " + string (l, 0, n - 2);
+          k += ' ' + string (l, 0, n - 2);
       }
     }
 
@@ -190,12 +190,12 @@ namespace brep
     // Add topics to the second-strongest search keywords.
     //
     for (const auto& t: topics)
-      k2 += " " + t;
+      k2 += ' ' + t;
 
     // Add keywords to the second-strongest search keywords.
     //
     for (const auto& k: keywords)
-      k2 += " " + k;
+      k2 += ' ' + k;
 
     return {move (k), move (k2), description ? *description : "", changes};
   }