The analyzer detected a potential typo that deals with using operators '<<' and '<<=' instead of '<' and '<=', respectively, in a loop condition.
Consider the following example:
void Foo(std::vector<int> vec) { for (size_t i = 0; i << vec.size(); i++) // <= { // Something } }
The "i << vec.size()" expression evaluates to zero, which is obviously an error because the loop body will not execute even once. Fixed code:
void Foo(std::vector<int> vec) { for (size_t i = 0; i < vec.size(); i++) { // Something } }
Note. Using right-shift operations (>>, >>=) is considered a normal situation, as they are used in various algorithms, for example computing the number of bits with the value 1, for example:
size_t num; unsigned short var = N; for (num = var & 1 ; var >>= 1; num += var & 1);
This diagnostic is classified as: