[#bsl-operator_le-06] = xref:bsl.adoc[bsl]::operator<= :relfileprefix: ../ :mrdocs: Less‐than‐or‐equal operators == Synopses Declared in `<bslstl_optional.h>` Return whether the left‐hand operand is before or equal to the right. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- template< class t_LHS_TYPE, class t_RHS_TYPE> constexpr bool xref:bsl/operator_le-0c.adoc[operator<=]( xref:bsl/optional-072.adoc[bsl::optional<t_LHS_TYPE>] const& lhs, xref:bsl/optional-072.adoc[bsl::optional<t_RHS_TYPE>] const& rhs); ---- [.small]#xref:bsl/operator_le-0c.adoc[_» more..._]# Return whether the left‐hand operand is before or equal to the right. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- template< class t_LHS_TYPE, class t_RHS_TYPE> constexpr bool xref:bsl/operator_le-03.adoc[operator<=]( xref:bsl/optional-072.adoc[bsl::optional<t_LHS_TYPE>] const& lhs, t_RHS_TYPE const& rhs); ---- [.small]#xref:bsl/operator_le-03.adoc[_» more..._]# Return whether the left‐hand operand is before or equal to the right. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- template< class t_LHS_TYPE, class t_RHS_TYPE> constexpr bool xref:bsl/operator_le-01.adoc[operator<=]( t_LHS_TYPE const& lhs, xref:bsl/optional-072.adoc[bsl::optional<t_RHS_TYPE>] const& rhs); ---- [.small]#xref:bsl/operator_le-01.adoc[_» more..._]# Return whether the left‐hand operand is before or equal to the right. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- template< class t_LHS_TYPE, class t_RHS_TYPE> constexpr bool xref:bsl/operator_le-04.adoc[operator<=]( xref:bsl/optional-072.adoc[bsl::optional<t_LHS_TYPE>] const& lhs, std::optional<t_RHS_TYPE> const& rhs); ---- [.small]#xref:bsl/operator_le-04.adoc[_» more..._]# Compare a `std::optional` with a `bsl::optional` using less‐than‐or‐equal. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- template< class t_LHS_TYPE, class t_RHS_TYPE> constexpr bool xref:bsl/operator_le-0e3.adoc[operator<=]( std::optional<t_LHS_TYPE> const& lhs, xref:bsl/optional-072.adoc[bsl::optional<t_RHS_TYPE>] const& rhs); ---- [.small]#xref:bsl/operator_le-0e3.adoc[_» more..._]# Return whether the specified stacks compare lexicographically; see the non‐member `operator<=` in the `bsl` namespace. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- bool xref:bsl/operator_le-0b.adoc[operator<=]( xref:bsl/stack-05.adoc[stack<VAL, CONT>] const& lhs, xref:bsl/stack-05.adoc[stack<VAL, CONT>] const& rhs); ---- [.small]#xref:bsl/operator_le-0b.adoc[_» more..._]# Return whether `lhs` is lexicographically less than or equal to `rhs`. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- template< class VALUE, class CONTAINER> bool xref:bsl/operator_le-0ec.adoc[operator<=]( xref:bsl/stack-05.adoc[stack<VALUE, CONTAINER>] const& lhs, xref:bsl/stack-05.adoc[stack<VALUE, CONTAINER>] const& rhs); ---- [.small]#xref:bsl/operator_le-0ec.adoc[_» more..._]# Return `true` if `lhs` is less than or equal to `rhs`. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- template< class t_HEAD, class... t_TAIL> bool xref:bsl/operator_le-00.adoc[operator<=]( xref:bsl/variant.adoc[variant<t_HEAD, t_TAIL...>] const& lhs, xref:bsl/variant.adoc[variant<t_HEAD, t_TAIL...>] const& rhs); ---- [.small]#xref:bsl/operator_le-00.adoc[_» more..._]# Return whether the specified queues compare lexicographically; see the non‐member `operator<=` in the `bsl` namespace. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- bool xref:bsl/operator_le-05.adoc[operator<=]( xref:bsl/queue-0a5.adoc[queue<VALUE2, CONTAINER2>] const& lhs, xref:bsl/queue-0a5.adoc[queue<VALUE2, CONTAINER2>] const& rhs); ---- [.small]#xref:bsl/operator_le-05.adoc[_» more..._]# Return `true` if `lhs` is lexicographically less than or equal to `rhs`. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- template< class VALUE, class CONTAINER> bool xref:bsl/operator_le-09.adoc[operator<=]( xref:bsl/queue-0a5.adoc[queue<VALUE, CONTAINER>] const& lhs, xref:bsl/queue-0a5.adoc[queue<VALUE, CONTAINER>] const& rhs); ---- [.small]#xref:bsl/operator_le-09.adoc[_» more..._]# Return whether `__x` is lexicographically <= `__y`. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- template< class _Tp, class _Alloc> bool xref:bsl/operator_le-02.adoc[operator<=]( xref:bsl/slist.adoc[slist<_Tp, _Alloc>] const& __x, xref:bsl/slist.adoc[slist<_Tp, _Alloc>] const& __y); ---- [.small]#xref:bsl/operator_le-02.adoc[_» more..._]# == Return Value * `true` if `lhs` is ordered before or equal to `rhs`, and `false` otherwise * `true` if `lhs` is lexicographically less than or equal to `rhs` * `true` if `lhs` is less than or equal to `rhs` * `true` if `lhs` is lexicographically less than or equal to `rhs`, otherwise `false` * `true` if `__x <= __y`, and `false` otherwise == Parameters [cols="1,4"] |=== | Name| Description | *lhs* | left‐hand operand | *rhs* | right‐hand operand | *__x* | left‐hand list | *__y* | right‐hand list |=== [.small]#Created with https://www.mrdocs.com[MrDocs]#