[LLVMbugs] [Bug 23685] clang crash on template meta-programming example

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=23685

Nick Lewycky <nlewycky at google.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |nlewycky at google.com
         Resolution|---                         |INVALID

--- Comment #3 from Nick Lewycky <nlewycky at google.com> ---
I get:

pr23685.cc:10:50: fatal error: recursive template instantiation exceeded
maximum
      depth of 256
template <int n = 0, uint8_t ...d> struct Calc : Calc<n + 1, d..., Solve(n, 0)>
                                                 ^
Your run script shows [...] "-ftemplate-depth" "101900". Yes, clang will
recurse and eat up stack space, those recursion depth limits are there to turn
these into crashes into fatal errors. If you set them to very large values,
clang will crash instead.

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