Synopsis

Old style casts (other than void casts) are used

Enabled by default

No

Severity/Certainty

Medium/Medium

Full description

Old style casts (other than void casts) are used. These casts override type information about the variables or pointers being cast, which might cause portability problems. A particular cast might for example not be valid on a system, but the compiler will perform the cast anyway. The new style casts static_cast, const_cast, and reinterpret_cast should be used instead because they make clear the intention of the cast. Moreover, the new style casts can easily be searched for in source code files, unlike old style casts. This check is identical to MISRAC++2008-5-2-4, MISRAC++2023-8.2.2.

Coding standards

Code examples

The following code example fails the check and will give a warning:

int example(float b)
{
    return (int)b;
}

The following code example passes the check and will not give a warning about this issue:

int example(float b)
{
    return static_cast<int>(b);
}