搜一下就有：

g++：

-ftemplate-depth=n
Set the maximum instantiation depth for template classes to n. A limit on the template instantiation depth is needed to detect endless recursions during template class instantiation. ANSI/ISO C++ conforming programs must not rely on a maximum depth greater than 17 (changed to 1024 in C++11). The default value is 900, as the compiler can run out of stack space before hitting 1024 in some situations.
https://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Dialect-Options.html


clang：

-ftemplate-depth=N
Sets the limit for recursively nested template instantiations to N. The default is 1024.
https://clang.llvm.org/docs/UsersManual.html

MSVC：
  默认是500级。可以用demo程序试出来。
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