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| CodeSonar® 9.0p0 Hot Tips | CONFIDENTIAL | CodeSecure Inc |
An assignment operation has two or more additional side effects (beyond the side effect of the assignment itself).
| Class Name | Too Many Side Effects in Assignment | ||||||
|---|---|---|---|---|---|---|---|
| Significance | style | ||||||
| Mnemonic | LANG.STRUCT.SE.ASSIGN | ||||||
| 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,
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="Too Many Side Effects in Assignment" |
extern int x, y; extern int f(int); /* Functions are assumed to have side effects unless * SIDE_EFFECT_FREE_FUNCTIONS specifies otherwise */ extern int iArr[10]; void assignment_rhs(void){ x += f(x); /* only one additional side effect */ y = x+=2; /* only one additional side effect */ iArr[x++]=f(y); /* 'Too Many Side Effects in Assignment' warning issued here * - 2 additional side effects */ y *= (x++ + y++); /* 'Too Many Side Effects in Assignment' warning issued here * - 2 additional side effects */ x = (x+=2) * (y-=3); /* 'Too Many Side Effects in Assignment' warning issued here * - 2 additional side effects */ }
The following configuration file parameters affect checks for this warning class.
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