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Use C++11-compatible operations

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The `std::is_base_of<T,U>()` and `std::is_reference<T>()` member functions were added in C++14.  To maintain C++11 compatibility, use the `::value` instead.

Current code fails on intel-17 and other compilers if using strict C++11
This commit is contained in:
Greg Sjaardema 2020-01-14 11:10:11 -07:00 committed by Victor Zverovich
parent ae3ea156ea
commit 55b6130055
1 changed files with 2 additions and 2 deletions
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4
include/fmt/core.h
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@ -1426,8 +1426,8 @@ template <typename... Args, typename S, typename Char = char_t<S>>
inline format_arg_store<buffer_context<Char>, remove_reference_t<Args>...> inline format_arg_store<buffer_context<Char>, remove_reference_t<Args>...>
make_args_checked(const S& format_str, make_args_checked(const S& format_str,
const remove_reference_t<Args>&... args) { const remove_reference_t<Args>&... args) {
static_assert(all_true<(!std::is_base_of<view, remove_reference_t<Args>>() || static_assert(all_true<(!std::is_base_of<view, remove_reference_t<Args>>::value ||
!std::is_reference<Args>())...>::value, !std::is_reference<Args>::value)...>::value,
"passing views as lvalues is disallowed"); "passing views as lvalues is disallowed");
check_format_string<remove_const_t<remove_reference_t<Args>>...>(format_str); check_format_string<remove_const_t<remove_reference_t<Args>>...>(format_str);
return {args...}; return {args...};