[#bsl-operator_not_eq-03]
= xref:bsl.adoc[bsl]::operator!=
:relfileprefix: ../
:mrdocs:

Return whether two stacks have different values.

== Synopsis

Declared in `<bslstl_stack.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
operator!=(
    xref:bsl/stack-05.adoc[stack<VAL, CONT>] const& lhs,
    xref:bsl/stack-05.adoc[stack<VAL, CONT>] const& rhs);
----

== Description

Same as the non‐member `operator!=` in the `bsl` namespace.

== Return Value

`true` if the stacks differ, `false` otherwise

== Parameters

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


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