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| CodeSonar® 9.2p0 | CONFIDENTIAL | CodeSecure Inc |
An assignment operator is used in a sub-expression. In consequence, the expression:
Warnings of this class will not be triggered by the following.
| Class Name | Assignment Result in Expression | |||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Significance | style | |||||||||||||||||||||||||||||||||
| Mnemonic | LANG.STRUCT.USEASSIGN | |||||||||||||||||||||||||||||||||
| 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="Assignment Result in Expression" |
int g;
int f(int i);
int lang_struct_useassign(int *a){
int x;
int y;
int vla[g=32]; /* 'Assignment Result in Expression' warning issued here */
y = x = 1; /* 'Assignment Result in Expression' warning issued here */
f(x+=3); /* 'Assignment Result in Expression' warning issued here */
if (x=3){ /* 'Assignment Result in Expression' warning issued here
* ('Redundant Condition' and 'Assign Where Compare Meant' warnings also issued)
*/
x = y++; /* postincrement result */
}
if ((x==x) || (x=3)){ /* 'Assignment Result in Expression' warning issued here
* (even though subexpression will never be executed:
* 'Unreachable Conditional', 'Redundant Condition', and
* 'Assign Where Compare Meant' warnings also issued)
*/
x = ++x; /* 'Assignment Result in Expression' warning issued here */
}
x += (y += x, y); /* comma operand */
return x;
}
The following configuration file parameters affect checks for this warning class.
To report problems with this documentation, please visit https://support.codesecure.com/.