V3041. The expression was implicitly cast from integer type to real type. Consider utilizing an explicit type cast to avoid the loss of a fractional part.


The analyzer detected a possible error that has to do with a result of integer division being implicitly cast to type float. Such cast may lead to inaccurate result.

Consider the following example:

int totalTime = 1700;
int operationNum = 900;
double averageTime = totalTime / operationNum;

The programmer expects the 'averageTime' variable to refer to value '1.888(8)', but because the division operation is applied to integer values and only then is the resulting value cast to type float, the variable will actually refer to '1.0'.

As in the previous case, there are two ways to fix the error.

One way is to change the variables' types:

double totalTime = 1700;
double operationNum = 900;
double averageTime = totalTime / operationNum;

Another way is to use explicit type cast.

int totalTime = 1700;
int operationNum = 900;
double averageTime = (double)(totalTime) / operationNum;

According to Common Weakness Enumeration, potential errors found by using this diagnostic are classified as CWE-682.

You can look at examples of errors detected by the V3041 diagnostic.


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