[LLVMbugs] [Bug 6432] New: bogus error on huge float val

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=6432

           Summary: bogus error on huge float val
           Product: clang
           Version: trunk
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P5
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: gohman at apple.com
                CC: llvmbugs at cs.uiuc.edu


For this code:

double d = 99.e99999;

GCC emits a warning: floating constant exceeds range of ‘double’ and assumes a
value of infinity.

clang emits an error: magnitude of floating-point constant too small for
      type 'double'; minimum is 4.940656458412465E-324

First, clang is considering an out-of-range floating-point value an error
instead of a warning. FWIW, this testcase is derived from real-world code.

Second, clang's message is bogus; the value is too great, not too small.

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