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

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu May 28 15:36:21 PDT 2015


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
      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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