[#BloombergLP-bdlb-operator_le-06f]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::operator<=
:relfileprefix: ../../
:mrdocs:

Return `true` if the specified `lhs` is ordered before the specified `rhs` nullable object or `lhs` and `rhs` have the same value, and `false` otherwise. (See `operator<` and `operator==`.)

== Synopsis

Declared in `<bdlb_nullablevalue.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class LHS_TYPE,
    class RHS_TYPE>
bool
operator<=(
    LHS_TYPE const& lhs,
    xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue<RHS_TYPE>] const& rhs)
requires (!NullableValue_DerivedFromOptional<LHS_TYPE>) &&
    requires { { lhs <= *rhs } ‐> NullableValue_ConvertibleToBool; };
----


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