amdn / itoa Goto Github PK

Hey there,

I just tried compiling the code and got some errors? I'm probably doing something wrong.. thanks for taking a look!

with this command :

g++ -std=c++1y -g -Wall -o itoa itoa.cpp itoa.h itoa_impl.h

got:
^
itoa_impl.h:207:18: error: ‘std::enable_if_t’ has not been declared
std::enable_if_t<not std::is_signed::value
^
itoa_impl.h:207:29: error: expected ‘>’ before ‘<’ token
std::enable_if_t<not std::is_signed::value
^
itoa_impl.h:216:18: error: ‘std::enable_if_t’ has not been declared
std::enable_if_tstd::is_signed<I::value
^
itoa_impl.h:216:29: error: expected ‘>’ before ‘<’ token
std::enable_if_tstd::is_signed<I::value
^
itoa.cpp:31:53: error: ‘std::index_sequence’ has not been declared
constexpr auto generate_array( Gen&& item, std::index_sequence<Is...>)
^
itoa.cpp:31:67: error: expected ‘,’ or ‘...’ before ‘<’ token
constexpr auto generate_array( Gen&& item, std::index_sequence<Is...>)
^
itoa.cpp:37:12: error: ‘make_index_sequence’ is not a member of ‘std’
}, std::make_index_sequence<200>{} );
^
itoa.cpp:37:41: error: expected primary-expression before ‘{’ token
}, std::make_index_sequence<200>{} );
^
In file included from itoa.h:28:0:
itoa_impl.h:207:18: error: ‘std::enable_if_t’ has not been declared
std::enable_if_t<not std::is_signed::value
^
itoa_impl.h:207:29: error: expected ‘>’ before ‘<’ token
std::enable_if_t<not std::is_signed::value
^
itoa_impl.h:216:18: error: ‘std::enable_if_t’ has not been declared
std::enable_if_tstd::is_signed<I::value
^
itoa_impl.h:216:29: error: expected ‘>’ before ‘<’ token
std::enable_if_tstd::is_signed<I::value
^
itoa_impl.h:207:18: error: ‘std::enable_if_t’ has not been declared
std::enable_if_t<not std::is_signed::value
^
itoa_impl.h:207:29: error: expected ‘>’ before ‘<’ token
std::enable_if_t<not std::is_signed::value
^
itoa_impl.h:216:18: error: ‘std::enable_if_t’ has not been declared
std::enable_if_tstd::is_signed<I::value
^
itoa_impl.h:216:29: error: expected ‘>’ before ‘<’ token
std::enable_if_tstd::is_signed<I::value
^

I use vs2015 for testing, vs2015 don't support int128.
How to use it in vs2015?

itoa-benchmark
https://github.com/miloyip/itoa-benchmark