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A function or method has non-void return type, but is declared with one of the following.
Warnings of this class are issued at the function definition location. No warnings are issued for function declarations that have no corresponding definition.
| Class Name | Non-void noreturn | ||||||
|---|---|---|---|---|---|---|---|
| Significance | reliability | ||||||
| Mnemonic | LANG.STRUCT.NVNR | ||||||
| Categories |
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| Availability | Available for C and C++. |
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| Enabling | Checks for this warning class are
disabled by default. To enable them, add the following WARNING_FILTER
rule to the project configuration file.
WARNING_FILTER += allow class="Non-void noreturn" |
#include <stdnoreturn.h> typedef void myvoid; _Noreturn int bad_noretA(void); /* warning is issued at the bad_noretA() definition */ _Noreturn int bad_noretA(void){ /* 'Non-void noreturn' warning issued here */ abort(); } noreturn int bad_noretB(void){ /* 'Non-void noreturn' warning issued here * - macro noreturn is defined to _Noreturn in stdnoreturn.h */ abort(); } _Noreturn int noret_declonly(void); /* no warning issued: noret_declonly() is never defined */ _Noreturn myvoid good_noret(void){ /* ok: return type is a typedef of void */ abort(); } int normal_ret(void){ /* ok: function returns normally */ return 1; }
The following configuration file parameters affect checks for this warning class.
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