[Bug c++/37062] New: missing warning on unreachable return statement

sebor at roguewave dot com gcc-bugzilla@gcc.gnu.org
Fri Aug 8 19:03:00 GMT 2008


gcc 4.3.0 issues warnings for the unreachable code on lines 7 and 9 below
but fails to issue one for line 17.

$ cat -n t.C && g++ -Wunreachable-code -c t.C
     1  int f ()
     2  {
     3      int i = 0;
     4
     5      if (i == 0) return 0;
     6
     7      throw i;    // unreachable, warning
     8      return 1;   // unreachable, warning
     9  }
    10
    11  int g ()
    12  {
    13      int i = 0;
    14
    15      if (i == 0) return 0;
    16
    17      return 1;   // unreachable, no warning
    18  }
    19
t.C: In function ‘int f()’:
t.C:7: warning: will never be executed
t.C:8: warning: will never be executed


-- 
           Summary: missing warning on unreachable return statement
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: sebor at roguewave dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37062



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