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An expression directly accesses a field of an atomic object of struct or union type.
| Class Name | Direct Access to Field of C Atomic Object | ||||||
|---|---|---|---|---|---|---|---|
| Significance | reliability | ||||||
| Mnemonic | CONCURRENCY.C_ATOMIC.DAF | ||||||
| Categories |
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| Availability | Available for C only (not C++). |
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| Enabling | Checks for this warning class are disabled by default,
and require the unnormalized
C ASTs for the project. To enable them, add the following
WARNING_FILTER rule and RETAIN_UNNORMALIZED_C_AST specification to the project configuration file.
RETAIN_UNNORMALIZED_C_AST = Yes WARNING_FILTER += allow class="Direct Access to Field of C Atomic Object" |
Japanese (ja)
#include <stdatomic.h>
typedef struct {
int x;
} ss_t;
void atomic_daf(ss_t *nonatomic, _Atomic ss_t *atomicA, _Atomic ss_t *atomicB){
atomicA->x = 0; /* 'Direct Access to Field of C Atomic Object' warning issued here */
nonatomic->x = 0; /* ok: not an atomic object */
atomic_store(atomicB, *nonatomic); /* ok: not a direct field access */
}
The following configuration file parameters affect checks for this warning class.