operator==,!=,<,<=,>,>= (std::experimental::basic_string_view)
|
Defined in header
<experimental/string_view>
|
||
|
Compare two
basic_string_view
objects
|
||
|
template
<
class
CharT,
class
Traits
>
constexpr
bool
operator
==
(
basic_string_view
<
CharT,Traits
>
lhs,
|
(1) | (library fundamentals TS) |
|
template
<
class
CharT,
class
Traits
>
constexpr
bool
operator
!
=
(
basic_string_view
<
CharT,Traits
>
lhs,
|
(2) | (library fundamentals TS) |
|
template
<
class
CharT,
class
Traits
>
constexpr
bool
operator
<
(
basic_string_view
<
CharT,Traits
>
lhs,
|
(3) | (library fundamentals TS) |
|
template
<
class
CharT,
class
Traits
>
constexpr
bool
operator
<=
(
basic_string_view
<
CharT,Traits
>
lhs,
|
(4) | (library fundamentals TS) |
|
template
<
class
CharT,
class
Traits
>
constexpr
bool
operator
>
(
basic_string_view
<
CharT,Traits
>
lhs,
|
(5) | (library fundamentals TS) |
|
template
<
class
CharT,
class
Traits
>
constexpr
bool
operator
>=
(
basic_string_view
<
CharT,Traits
>
lhs,
|
(6) | (library fundamentals TS) |
Compares two views.
All comparisons are done via the
compare()
member function (which itself is defined in terms of
Traits::compare()
):
- Two views are equal if both the size of lhs and rhs are equal and each character in lhs has an equivalent character in rhs at the same position.
- The ordering comparisons are done lexicographically -- the comparison is performed by a function equivalent to std::lexicographical_compare .
The implementation shall provide sufficient additional
constexpr
and
noexcept
overloads of these functions so that a
basic_string_view<CharT,Traits>
object
sv
may be compared to another object
t
with an implicit conversion to
basic_string_view<CharT,Traits>
, with semantics identical to comparing
sv
and
basic_string_view<CharT,Traits>(t)
.
Parameters
| lhs, rhs | - | views to compare |
Return value
true if the corresponding comparison holds, false otherwise.
Complexity
Linear in the size of the views.