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| CodeSonar® 9.2p0 | CONFIDENTIAL | CodeSecure Inc |
Japanese (ja)
LHS_operand && RHS_operand
/* or */
LHS_operand || RHS_operand
occurs with RHS_operand that contains side effects.
For the sake of this check:
| Class Name | Side Effects in Logical Operand | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Significance | style | |||||||||||||||||||||||||||
| Mnemonic | LANG.STRUCT.SE.LOGIC | |||||||||||||||||||||||||||
| 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="Side Effects in Logical Operand" |
#include <string.h>
int f(int i);
int g(int i) __attribute__((const));
int h(int i) __attribute__((pure));
int SE_LOGIC(int x, int y, volatile int *z, char *s){
y += (!(x--) && y); /* side effect on LHS only */
y += (x && !(y--)); /* 'Side Effects in Logical Operand' warning issued here */
y += ((y > 5) || f(y)); /* 'Side Effects in Logical Operand' warning issued here */
y += ((y > 5) || g(y)); /* g() declared with __attribute__(const) */
y += ((y > 5) || h(y)); /* h() declared with __attribute__(pure) */
y += ((y > 5) || strlen(s)); /* strlen() matches a factory setting for SIDE_EFFECT_FREE_FUNCTIONS */
y += ((y > 5) || (y = 10)); /* 'Side Effects in Logical Operand' warning issued here
* ('Assign Where Compare Meant' warning also issued)
*/
y += ((y > 5) || z); /* pointer is not itself volatile */
y += ((y > 5) || *z); /* 'Side Effects in Logical Operand' warning issued here */
y += ((y > 5) || z[0]); /* 'Side Effects in Logical Operand' warning issued here */
return y;
}
The following configuration file parameters affect checks for this warning class.
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