rspec/rules/S3685/cfamily/rule.adoc

{cpp} allows you to append a macro value onto the end of a string literal. Prior to {cpp}11, it was possible to do this either with or without a space between the two. But with the introduction of user-defined literals in {cpp}11, the preprocessing of string suffixes changed. To get the same string + macro behavior under {cpp} 11, you must separate the string literal and the macro with a space. Without the space, you'll get a compile error.


For the purpose of preparing for migration to {cpp}11, this rule raises an issue when there's no space between a string literal and a macro.


== Noncompliant Code Example

----
#define _Hrs " hours"
static const char* OPENING = "7"_Hrs; // Noncompliant
----


== Compliant Solution

----
#define _Hrs " hours"
static const char* OPENING = "7" _Hrs; // there's one space after "7"
----



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== Comments And Links
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