== Why is this an issue?

include::../description.adoc[]

=== Noncompliant code example

[source,csharp]
----
public void Sample(bool b, bool c, string s)
{
    var a = true;
    if (a) // Noncompliant
    {
        DoSomething();
    }

    if (b && a) // Noncompliant; "a" is always "true"
    {
        DoSomething();
    }

    if (c || !a) // Noncompliant; "!a" is always "false"
    {
        DoSomething();
    }

    string d = null;
    var v1 = d ?? "value"; // Noncompliant, d is always null
    var v2 = s ?? d; // Noncompliant, d is always null and the produced value is always equal to s. The condition to check the value of s is gratuitous.
}
----

=== Compliant solution

[source,csharp]
----
public void Sample(bool b, bool c, string s)
{
    var a = true;
    if (Foo(a))
    {
        DoSomething();
    }

    if (b)
    {
        DoSomething();
    }

    if (c)
    {
        DoSomething();
    }

    var v1 = "value";
    var v2 = s;
}
----

include::../see.adoc[]

ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

=== Message

* Change this condition so that it does not always evaluate to "[true|false]".
* Change this expression which always evaluates to "null".


include::../highlighting.adoc[]

'''
== Comments And Links
(visible only on this page)

include::../comments-and-links.adoc[]
endif::env-github,rspecator-view[]