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  1. Rules Repository
  2. RSPEC-798

Digraphs should not be used

    Details

    • Message:
      Replace this digraph 'xxx' by its equivalent 'yyy'.
    • Default Severity:
      Blocker
    • Impact:
      High
    • Likelihood:
      High
    • Default Quality Profiles:
      Sonar way
    • Legacy Key:
      DigraphUsage
    • Covered Languages:
      C, C++, Objective-C
    • Remediation Function:
      Constant/Issue
    • Constant Cost:
      5min
    • MISRA C++ 2008:
      2-5-1
    • PC-Lint:
      9102

      Description

      The use of digraphs may not meet developer expectations.

      The digraphs are:

      • <%
      • %>
      • <:
      • :>
      • %:
      • %:%:

      Noncompliant Code Example

      template <typename T>
class A
{
  public:
    template<int32_t i>
    void f2();
};

void f(A<int32_t> * a<:10:>)    /* Noncompliant - usage of '<:' instead of '[' and ':>' instead of ']' */
<%                              /* Noncompliant - usage of '<%' instead of '{' */
  a<:0:>->f2<20>();             /* Noncompliant - usage of '<:' and ':>' */
%>                              /* Noncompliant - usage of '%>' instead of '}' */

      Compliant Solution

      /* ... */

void f(A<int32_t> * a[10])      /* Compliant */
{                               /* Compliant */
  a[0]->f2<20>();               /* Compliant */
}                               /* Compliant */

      See

      • MISRA C++:2008, 2-5-1 - Digraphs should not be used.

        Attachments

          Issue Links

          is depended upon by

          New Feature - A new feature of the product, which has yet to be developed. CPP-53 Rule MISRA 2-5-1: Digraphs should not be used

          • Major - Major loss of function.
          • Closed
          is implemented by

          Task - A task that needs to be done. CPP-707 Create Objective-C rules repository containing targeted rules

          • Major - Major loss of function.
          • Closed
          1.
          		 C-Family RSPEC-4357 Language-Specification Active Unassigned

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              • Assignee:
                Unassigned
                Reporter:
                Anonymous
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                Dates

                • Created:
                  Updated: