operator==, operator<=>(std::stacktrace_entry)
friend constexpr bool operator==( const stacktrace_entry& lhs,
const stacktrace_entry& rhs ) noexcept; |
(1) | (since C++23) |
friend constexpr std::strong_ordering
operator<=>( const stacktrace_entry& lhs, const stacktrace_entry& rhs ) noexcept; |
(2) | (since C++23) |
1) Compares
lhs and
rhs for equality. Two
stacktrace_entry values are equal if and only if they represent the same stacktrace entry, or both of them are empty.
2) Gets the relative order between
lhs and
rhs in the unspecified strict total order over all
stacktrace_entry values which is consistent with the equality relation established by
operator==.
These functions are not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when std::stacktrace_entry is an associated class of the arguments.
The <, <=, >, >=, and != operators are synthesized from operator<=> and operator== respectively.
Parameters
| lhs, rhs | - | stacktrace_entry values to compare |
Return value
1)
true if two
lhs and
rhs compare equal,
false otherwise.
2)
std::strong_ordering::equal if
lhs and
rhs compare equal.
Otherwise,
std::strong_ordering::less if
lhs is ordered before
rhs in the strict total order.
Otherwise,
std::strong_ordering::greater (in which case
rhs is ordered before
lhs in the strict total order).
Example
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
https://en.cppreference.com/w/cpp/utility/stacktrace_entry/operator_cmp
