This produces 21KB of output for me with GCC 10.1.0:
#include <iostream>int main() { std::cin >> ""; }Output:
error.cpp: In function ‘int main()’:error.cpp:2:23: error: no match for ‘operator>>’ (operand types are ‘std::istream’ {aka ‘std::basic_istream<char>’} and ‘const char [1]’) 2 | int main() { std::cin >> ""; } | ~~~~~~~~ ^~ ~~ | | | | | const char [1] | std::istream {aka std::basic_istream<char>}In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:168:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]’ (near match) 168 | operator>>(bool& __n) | ^~~~~~~~/usr/include/c++/10.1.0/istream:168:7: note: conversion of argument 1 would be ill-formed:error.cpp:2:26: error: cannot bind non-const lvalue reference of type ‘bool&’ to an rvalue of type ‘bool’ 2 | int main() { std::cin >> ""; } | ^~In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:172:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]’ (near match) 172 | operator>>(short& __n); | ^~~~~~~~/usr/include/c++/10.1.0/istream:172:7: note: conversion of argument 1 would be ill-formed:error.cpp:2:26: error: invalid conversion from ‘const char*’ to ‘short int’ [-fpermissive] 2 | int main() { std::cin >> ""; } | ^~ | | | const char*error.cpp:2:26: error: cannot bind rvalue ‘(short int)((const char*)"")’ to ‘short int&’In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:175:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]’ (near match) 175 | operator>>(unsigned short& __n) | ^~~~~~~~/usr/include/c++/10.1.0/istream:175:7: note: conversion of argument 1 would be ill-formed:error.cpp:2:26: error: invalid conversion from ‘const char*’ to ‘short unsigned int’ [-fpermissive] 2 | int main() { std::cin >> ""; } | ^~ | | | const char*error.cpp:2:26: error: cannot bind rvalue ‘(short unsigned int)((const char*)"")’ to ‘short unsigned int&’In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:179:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]’ (near match) 179 | operator>>(int& __n); | ^~~~~~~~/usr/include/c++/10.1.0/istream:179:7: note: conversion of argument 1 would be ill-formed:error.cpp:2:26: error: invalid conversion from ‘const char*’ to ‘int’ [-fpermissive] 2 | int main() { std::cin >> ""; } | ^~ | | | const char*error.cpp:2:26: error: cannot bind rvalue ‘(int)((const char*)"")’ to ‘int&’In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:182:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]’ (near match) 182 | operator>>(unsigned int& __n) | ^~~~~~~~/usr/include/c++/10.1.0/istream:182:7: note: conversion of argument 1 would be ill-formed:error.cpp:2:26: error: invalid conversion from ‘const char*’ to ‘unsigned int’ [-fpermissive] 2 | int main() { std::cin >> ""; } | ^~ | | | const char*error.cpp:2:26: error: cannot bind rvalue ‘(unsigned int)((const char*)"")’ to ‘unsigned int&’In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:186:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]’ (near match) 186 | operator>>(long& __n) | ^~~~~~~~/usr/include/c++/10.1.0/istream:186:7: note: conversion of argument 1 would be ill-formed:error.cpp:2:26: error: invalid conversion from ‘const char*’ to ‘long int’ [-fpermissive] 2 | int main() { std::cin >> ""; } | ^~ | | | const char*error.cpp:2:26: error: cannot bind rvalue ‘(long int)((const char*)"")’ to ‘long int&’In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:190:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]’ (near match) 190 | operator>>(unsigned long& __n) | ^~~~~~~~/usr/include/c++/10.1.0/istream:190:7: note: conversion of argument 1 would be ill-formed:error.cpp:2:26: error: invalid conversion from ‘const char*’ to ‘long unsigned int’ [-fpermissive] 2 | int main() { std::cin >> ""; } | ^~ | | | const char*error.cpp:2:26: error: cannot bind rvalue ‘(long unsigned int)((const char*)"")’ to ‘long unsigned int&’In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:195:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]’ (near match) 195 | operator>>(long long& __n) | ^~~~~~~~/usr/include/c++/10.1.0/istream:195:7: note: conversion of argument 1 would be ill-formed:error.cpp:2:26: error: invalid conversion from ‘const char*’ to ‘long long int’ [-fpermissive] 2 | int main() { std::cin >> ""; } | ^~ | | | const char*error.cpp:2:26: error: cannot bind rvalue ‘(long long int)((const char*)"")’ to ‘long long int&’In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:199:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]’ (near match) 199 | operator>>(unsigned long long& __n) | ^~~~~~~~/usr/include/c++/10.1.0/istream:199:7: note: conversion of argument 1 would be ill-formed:error.cpp:2:26: error: invalid conversion from ‘const char*’ to ‘long long unsigned int’ [-fpermissive] 2 | int main() { std::cin >> ""; } | ^~ | | | const char*error.cpp:2:26: error: cannot bind rvalue ‘(long long unsigned int)((const char*)"")’ to ‘long long unsigned int&’In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:235:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]’ (near match) 235 | operator>>(void*& __p) | ^~~~~~~~/usr/include/c++/10.1.0/istream:235:7: note: conversion of argument 1 would be ill-formed:error.cpp:2:26: error: invalid conversion from ‘const void*’ to ‘void*’ [-fpermissive] 2 | int main() { std::cin >> ""; } | ^~ | | | const void*error.cpp:2:26: error: cannot bind rvalue ‘(void*)((const void*)((const char*)""))’ to ‘void*&’In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:120:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__istream_type& (*)(std::basic_istream<_CharT, _Traits>::__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]’ 120 | operator>>(__istream_type& (*__pf)(__istream_type&)) | ^~~~~~~~/usr/include/c++/10.1.0/istream:120:36: note: no known conversion for argument 1 from ‘const char [1]’ to ‘std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)’ {aka ‘std::basic_istream<char>& (*)(std::basic_istream<char>&)’} 120 | operator>>(__istream_type& (*__pf)(__istream_type&)) | ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~/usr/include/c++/10.1.0/istream:124:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__ios_type& (*)(std::basic_istream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::__ios_type = std::basic_ios<char>]’ 124 | operator>>(__ios_type& (*__pf)(__ios_type&)) | ^~~~~~~~/usr/include/c++/10.1.0/istream:124:32: note: no known conversion for argument 1 from ‘const char [1]’ to ‘std::basic_istream<char>::__ios_type& (*)(std::basic_istream<char>::__ios_type&)’ {aka ‘std::basic_ios<char>& (*)(std::basic_ios<char>&)’} 124 | operator>>(__ios_type& (*__pf)(__ios_type&)) | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~/usr/include/c++/10.1.0/istream:131:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]’ 131 | operator>>(ios_base& (*__pf)(ios_base&)) | ^~~~~~~~/usr/include/c++/10.1.0/istream:131:30: note: no known conversion for argument 1 from ‘const char [1]’ to ‘std::ios_base& (*)(std::ios_base&)’ 131 | operator>>(ios_base& (*__pf)(ios_base&)) | ~~~~~~~~~~~~^~~~~~~~~~~~~~~~/usr/include/c++/10.1.0/istream:214:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]’ 214 | operator>>(float& __f) | ^~~~~~~~/usr/include/c++/10.1.0/istream:214:25: note: no known conversion for argument 1 from ‘const char [1]’ to ‘float&’ 214 | operator>>(float& __f) | ~~~~~~~^~~/usr/include/c++/10.1.0/istream:218:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]’ 218 | operator>>(double& __f) | ^~~~~~~~/usr/include/c++/10.1.0/istream:218:26: note: no known conversion for argument 1 from ‘const char [1]’ to ‘double&’ 218 | operator>>(double& __f) | ~~~~~~~~^~~/usr/include/c++/10.1.0/istream:222:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long double&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]’ 222 | operator>>(long double& __f) | ^~~~~~~~/usr/include/c++/10.1.0/istream:222:31: note: no known conversion for argument 1 from ‘const char [1]’ to ‘long double&’ 222 | operator>>(long double& __f) | ~~~~~~~~~~~~~^~~/usr/include/c++/10.1.0/istream:259:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>]’ 259 | operator>>(__streambuf_type* __sb); | ^~~~~~~~/usr/include/c++/10.1.0/istream:259:36: note: no known conversion for argument 1 from ‘const char [1]’ to ‘std::basic_istream<char>::__streambuf_type*’ {aka ‘std::basic_streambuf<char>*’} 259 | operator>>(__streambuf_type* __sb); | ~~~~~~~~~~~~~~~~~~^~~~In file included from /usr/include/c++/10.1.0/string:56, from /usr/include/c++/10.1.0/bits/locale_classes.h:40, from /usr/include/c++/10.1.0/bits/ios_base.h:41, from /usr/include/c++/10.1.0/ios:42, from /usr/include/c++/10.1.0/ostream:38, from /usr/include/c++/10.1.0/iostream:39, from error.cpp:1:/usr/include/c++/10.1.0/bits/basic_string.tcc:1476:5: note: candidate: ‘template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)’ 1476 | operator>>(basic_istream<_CharT, _Traits>& __in, | ^~~~~~~~/usr/include/c++/10.1.0/bits/basic_string.tcc:1476:5: note: template argument deduction/substitution failed:error.cpp:2:26: note: mismatched types ‘std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’ and ‘const char [1]’ 2 | int main() { std::cin >> ""; } | ^~In file included from /usr/include/c++/10.1.0/istream:991, from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/bits/istream.tcc:931:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT&)’ 931 | operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c) | ^~~~~~~~/usr/include/c++/10.1.0/bits/istream.tcc:931:5: note: template argument deduction/substitution failed:error.cpp:2:26: note: deduced conflicting types for parameter ‘_CharT’ (‘char’ and ‘const char [1]’) 2 | int main() { std::cin >> ""; } | ^~In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:756:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char&)’ 756 | operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c) | ^~~~~~~~/usr/include/c++/10.1.0/istream:756:5: note: template argument deduction/substitution failed:error.cpp:2:26: note: cannot convert ‘""’ (type ‘const char [1]’) to type ‘unsigned char&’ 2 | int main() { std::cin >> ""; } | ^~In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:761:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char&)’ 761 | operator>>(basic_istream<char, _Traits>& __in, signed char& __c) | ^~~~~~~~/usr/include/c++/10.1.0/istream:761:5: note: template argument deduction/substitution failed:error.cpp:2:26: note: cannot convert ‘""’ (type ‘const char [1]’) to type ‘signed char&’ 2 | int main() { std::cin >> ""; } | ^~In file included from /usr/include/c++/10.1.0/istream:991, from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/bits/istream.tcc:963:5: note: candidate: ‘template<class _CharT2, class _Traits2> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT2*)’ 963 | operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s) | ^~~~~~~~/usr/include/c++/10.1.0/bits/istream.tcc:963:5: note: template argument deduction/substitution failed:error.cpp:2:26: note: deduced conflicting types for parameter ‘_CharT2’ (‘char’ and ‘const char’) 2 | int main() { std::cin >> ""; } | ^~In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:803:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char*)’ 803 | operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s) | ^~~~~~~~/usr/include/c++/10.1.0/istream:803:5: note: template argument deduction/substitution failed:error.cpp:2:26: note: cannot convert ‘""’ (type ‘const char [1]’) to type ‘unsigned char*’ 2 | int main() { std::cin >> ""; } | ^~In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:808:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char*)’ 808 | operator>>(basic_istream<char, _Traits>& __in, signed char* __s) | ^~~~~~~~/usr/include/c++/10.1.0/istream:808:5: note: template argument deduction/substitution failed:error.cpp:2:26: note: cannot convert ‘""’ (type ‘const char [1]’) to type ‘signed char*’ 2 | int main() { std::cin >> ""; } | ^~In file included from /usr/include/c++/10.1.0/iostream:40, from error.cpp:1:/usr/include/c++/10.1.0/istream:980:5: note: candidate: ‘template<class _Istream, class _Tp> typename std::enable_if<std::__and_<std::__not_<std::is_lvalue_reference<_Tp> >, std::__is_convertible_to_basic_istream<_Istream>, std::__is_extractable<typename std::__is_convertible_to_basic_istream<_Tp>::__istream_type, _Tp&&, void> >::value, typename std::__is_convertible_to_basic_istream<_Tp>::__istream_type>::type std::operator>>(_Istream&&, _Tp&&)’ 980 | operator>>(_Istream&& __is, _Tp&& __x) | ^~~~~~~~/usr/include/c++/10.1.0/istream:980:5: note: template argument deduction/substitution failed:/usr/include/c++/10.1.0/istream: In substitution of ‘template<class _Istream, class _Tp> typename std::enable_if<std::__and_<std::__not_<std::is_lvalue_reference<_Tp> >, std::__is_convertible_to_basic_istream<_Istream>, std::__is_extractable<typename std::__is_convertible_to_basic_istream<_Tp>::__istream_type, _Tp&&, void> >::value, typename std::__is_convertible_to_basic_istream<_Tp>::__istream_type>::type std::operator>>(_Istream&&, _Tp&&) [with _Istream = std::basic_istream<char>&; _Tp = const char (&)[1]]’:error.cpp:2:26: required from here/usr/include/c++/10.1.0/istream:980:5: error: no type named ‘type’ in ‘struct std::enable_if<false, std::basic_istream<char>&>’