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An expression statement contains two or more side effects.
There are two kinds of expression statement that will not trigger warnings of this class.
| Class Name | Too Many Side Effects in Statement | ||||||
|---|---|---|---|---|---|---|---|
| Significance | style | ||||||
| Mnemonic | LANG.STRUCT.SE.STMT | ||||||
| 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 Statement" |
extern int x, y; extern int f(int); /* Functions are assumed to have side effects unless * SIDE_EFFECT_FREE_FUNCTIONS specifies otherwise */ void too_many_side_effects_statement(void){ x++; /* only one side effect */ x--, y--; /* contains comma operator */ x++ + y++; /* 'Too Many Side Effects in Statement' warning issued here */ f(x) + f(y); /* 'Too Many Side Effects in Statement' warning issued here */ g(x+=2, y+=4) + 2; /* 'Too Many Side Effects in Statement' warning issued here * ('Too Many Side Effects in Function Call' warning also issued if enabled) */ g(x+=3, y+=5); /* consists only of a single function call * ('Too Many Side Effects in Function Call' * warning issued if enabled) */ }
The following configuration file parameters affect checks for this warning class.
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