ENH: regExp: improved error message

OpenFOAM · Oct 25, 2012 · 6866092 · 6866092
1 parent 83c7bc2
commit 6866092
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/src/OSspecific/POSIX/regExp.C b/src/OSspecific/POSIX/regExp.C
@@ -80,12 +80,18 @@ void Foam::regExp::set(const char* pattern, const bool ignoreCase) const
             cflags |= REG_ICASE;
         }
 
-        if (regcomp(preg_, pattern, cflags) != 0)
+        int err = regcomp(preg_, pattern, cflags);
+
+        if (err != 0)
         {
+            char errbuf[200];
+            regerror(err, preg_, errbuf, sizeof(errbuf));
+
             FatalErrorIn
             (
                 "regExp::set(const char*)"
             )   << "Failed to compile regular expression '" << pattern << "'"
+                << nl << errbuf
                 << exit(FatalError);
         }
     }