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V3092. Range intersections are possible within conditional expressions.
The analyzer has detected a potential error in a condition. The program must perform different actions depending on which range of values a certain variable meets.
For this purpose, the following construct is used in the code:
if ( MIN_A < X && X < MAX_A ) {
....
} else if ( MIN_B < X && X < MAX_B ) {
....
}The analyzer generates the warning when the ranges checked in conditions overlap. For example:
if ( 0 <= X && X < 10)
FooA();
else if ( 10 <= X && X < 20)
FooB();
else if ( 20 <= X && X < 300)
FooC();
else if ( 30 <= X && X < 40)
FooD();The code contains a typo. The programmer's fingers faltered at some moment and he wrote "20 <= X && X < 300" instead of "20 <= X && X < 30" by mistake. If the X variable stores, for example, the value 35, it will be the function FooC() that will be called instead of FooD().
The fixed code:
if ( 0 <= X && X < 10)
FooA();
else if ( 10 <= X && X < 20)
FooB();
else if ( 20 <= X && X < 30)
FooC();
else if ( 30 <= X && X < 40)
FooD();This diagnostic is classified as:
You can look at examples of errors detected by the V3092 diagnostic. |
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