# V2508. MISRA. The function with the 'atof/atoi/atol/atoll' name should not be used.

This diagnostic rule is based on the software development guidelines developed by MISRA (Motor Industry Software Reliability Association).

The analyzer issues the warning when it detects the following functions: 'atof', 'atoi', 'atol', 'atoll'.

Incorrect use of these functions may result in undefined behavior. This could happen when a function argument is not a valid C-string or if the resulting value does not fit into the return type.

Here is an example of code triggering this warning:

    void Foo(const char *str)
    {
     int val = atoi(str);
     ....
    }

The warning is also issued in C programs whenever a macro declaration with one of these names is detected.

This diagnostic is classified as:

MISRA-C-2012-21.7 MISRA-C-2023-21.7 MISRA-CPP-2008-18.0.2