[LLVMbugs] [Bug 24287] New: No error that the designated index in an array initializer is too large

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=24287

            Bug ID: 24287
           Summary: No error that the designated index in an array
                    initializer is too large
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: akyrtzi at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

=======
#include <limits.h>

char vals1[ULONG_MAX] = { // error: array is too large (18446744073709551615
elements)
};

char vals2[] = {
  [ULONG_MAX-1] = 0 // no error
};
=======

The second array initialization will trigger huge memory usage (for creating
all these initializer expressions) but no error like in the constant array
case.

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