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Author

anonymous

over 7 years ago

Language

C++

Compiler

clang HEAD 6.0.0 (https://github.com/llvm-mirror/clang.git 9abf20c4164830b4128ff68823990787ea933862) (https://github.com/llvm-mirror/llvm.git ee5e3180393bc0885ef3fd6c0e20c6d34bdabb46)

Options
Warnings
Boost 1.65.1
C++2a(GNU)
Boost 1.65.1
C++2a(GNU)
Boost 1.65.1
C++2a(GNU)
no pedantic

Author

anonymous

over 7 years ago

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// Example program
#include <iostream>
#include <string>
#include <type_traits>

template<bool B, typename T>
using Enable_if = typename std::enable_if<B,T>::type;

template<int N>
void f(){
std::cout << N;
f<N-1>();
}

int main() {
f<5>();
}

$ clang++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.65.1/clang-head/include -std=gnu++2a 
prog.cc:12:5: fatal error: recursive template instantiation exceeded maximum depth of 1024
    f<N-1>();
    ^
prog.cc:12:5: note: in instantiation of function template specialization 'f<-1019>' requested here
prog.cc:12:5: note: in instantiation of function template specialization 'f<-1018>' requested here
prog.cc:12:5: note: in instantiation of function template specialization 'f<-1017>' requested here
prog.cc:12:5: note: in instantiation of function template specialization 'f<-1016>' requested here
prog.cc:12:5: note: in instantiation of function template specialization 'f<-1015>' requested here
prog.cc:12:5: note: (skipping 1015 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all)
prog.cc:12:5: note: in instantiation of function template specialization 'f<1>' requested here
prog.cc:12:5: note: in instantiation of function template specialization 'f<2>' requested here
prog.cc:12:5: note: in instantiation of function template specialization 'f<3>' requested here
prog.cc:12:5: note: in instantiation of function template specialization 'f<4>' requested here
prog.cc:16:5: note: in instantiation of function template specialization 'f<5>' requested here
    f<5>();
    ^
1 error generated.
Exit Code:
1