[#BloombergLP-bdldfp-operator_lt-0a2]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdldfp.adoc[bdldfp]::operator<
:relfileprefix: ../../
:mrdocs:

Return `true` if the specified `lhs` has a value less than the specified `rhs` and `false` otherwise.

== Synopsis

Declared in `<bdldfp_decimal.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
operator<(
    xref:BloombergLP/bdldfp/Decimal128.adoc[Decimal128] lhs,
    xref:BloombergLP/bdldfp/Decimal128.adoc[Decimal128] rhs);
----

== Description

The value of a `Decimal128` object `lhs` is less than that of an object `rhs` if the `compareQuietLess` operation (IEEE‐754 defined, non‐total ordering comparison) considers the underlying IEEE representation of `lhs` to be less than of that of `rhs`. In other words, `lhs` is less than `rhs` if:

* neither `lhs` nor `rhs` are NaN, or * `lhs` is zero (positive or negative) and `rhs` is positive, or * `rhs` is zero (positive or negative) and `lhs` negative, or * `lhs` is not positive infinity, or * `lhs` is negative infinity and `rhs` is not, or * `lhs` and `rhs` both represent a real number and the real number of `lhs` is less than that of `rhs`

This operation stores the value of the macro `EDOM` into `errno` if either or both operands are signaling NaN.

== Return Value

`true` if the specified `lhs` has a value less than the specified `rhs` and `false` otherwise

== Parameters

[cols="1,4"]
|===
| Name| Description
| *lhs*
| left‐hand operand
| *rhs*
| right‐hand operand
|===


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