rspec/rules/S818/cfamily/rule.adoc

== Why is this an issue?

include::../description.adoc[]

=== Noncompliant code example

[source,cpp]
----
const int        a = 0u;      // Noncompliant
const int        b = 0l;      // Noncompliant
const int        c = 0Ul;     // Noncompliant
const int        d = 0x12bu;  // Noncompliant
const float      m = 1.2f;    // Noncompliant
const float      n = 1.2l;    // Noncompliant
----


=== Compliant solution

[source,cpp]
----
const int        a = 0U;
const int        b = 0L;
const int        c = 0UL;
const int        d = 0x12bU;
const float      m = 1.2F;
const float      n = 1.2L;
----


== Resources

* MISRA {cpp}:2008, 2-13-4 - Literal suffixes shall be upper case
* MISRA C:2012, 7.3 - The lowercase character "l" shall not be used in a literal suffix
* https://wiki.sei.cmu.edu/confluence/x/cdYxBQ[CERT DCL16-C.] - Use "L," not "l," to indicate a long value

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

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

include::../message.adoc[]

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

include::../comments-and-links.adoc[]

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