MISRA C:2023 Rule 17.11
A function that never returns should be declared with a
_Noreturn
function specifier
Since R2024a
Description
Rule Definition
A function that never returns should be declared with a
_Noreturn
function specifier1
.
Rationale
If you declare a function with the _Noreturn
specifier, it becomes explicit that the function is not intended to return. Otherwise, it is unclear if the function that does not return because of an error in the program logic.
Polyspace Implementation
The rule checker analyzes the body of a function and reports a violation if the function cannot return to its caller but is not declared as _Noreturn
.
This rule violation is reported only if you specify a C standard version of C11 or later for the Bug Finder analysis. For more information, see C standard version (-c-version)
.
Troubleshooting
If you expect a rule violation but do not see it, refer to Diagnose Why Coding Standard Violations Do Not Appear as Expected.
Examples
Check Information
Group: Functions |
Category: Advisory |
AGC Category: Advisory |
Version History
Introduced in R2024a
1 All MISRA coding rules and directives are © Copyright The MISRA Consortium Limited 2021.
The MISRA coding standards referenced in the Polyspace® Bug Finder™ documentation are from the following MISRA standards:
MISRA C:2004
MISRA C:2012
MISRA C:2023
MISRA C++:2008
MISRA C++:2023
MISRA and MISRA C are registered trademarks of The MISRA Consortium Limited 2021.