[LLVMbugs] [Bug 6163] New: Warn when comparing two arrays

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Wed Jan 27 16:00:23 PST 2010


           Summary: Warn when comparing two arrays
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Keywords: quality-of-implementation
          Severity: normal
          Priority: P2
         Component: Semantic Analyzer
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: dgregor at apple.com
                CC: llvmbugs at cs.uiuc.edu

Clang should warn about code that compares two arrays directly:

  int array1[2];
  int array2[2];

  int foo() {
    return array1 == array2;

because we always know what the answer will be.

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