[LLVMbugs] [Bug 5190] New: missing warnings on switch(boolean_expr)

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Wed Oct 14 13:28:44 PDT 2009


           Summary: missing warnings on switch(boolean_expr)
           Product: clang
           Version: trunk
          Platform: All
        OS/Version: All
            Status: ASSIGNED
          Severity: normal
          Priority: P2
         Component: Semantic Analyzer
        AssignedTo: zhanyong.wan at gmail.com
        ReportedBy: zhanyong.wan at gmail.com
                CC: clattner at apple.com, llvmbugs at cs.uiuc.edu,
                    nlewycky at google.com

Clang should warn on switch(bool) since it's almost certainly wrong
(developers seem okay with using if-statements instead).

int test2(const char *foo) {
  int success = 0;
  switch (foo && foo[0]) {  /* XXX */
    case 0:
      success = 1;
    case 1:
  return success;

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