[LLVMbugs] [Bug 4402] New: Add pedantic checking for constant expressions to clang

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Tue Jun 16 17:44:20 PDT 2009


           Summary: Add pedantic checking for constant expressions to clang
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Semantic Analyzer
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: sharparrow1 at yahoo.com
                CC: llvmbugs at cs.uiuc.edu

>From Sema::CheckForConstantInitializer:
  // FIXME: Need strict checking.  In C89, we need to check for
  // any assignment, increment, decrement, function-calls, or
  // commas outside of a sizeof.  In C99, it's the same list,
  // except that the aforementioned are allowed in unevaluated
  // expressions.  Everything else falls under the
  // "may accept other forms of constant expressions" exception.
  // (We never end up here for C++, so the constant expression
  // rules there don't matter.)

Filing here for completeness.  This is relatively low-priority because it's a
non-trivial amount of work, and it's a warning nobody would care about outside
of -pedantic mode.

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