uint16_t does not name a type

#include <cstdint>

int main() {
    uint16_t variableName;
    return 0;
}

Explanation:

1. #include <cstdint>: This line includes the header file <cstdint>, which provides a set of typedefs for fixed-width integer types. In this case, it includes the definition for uint16_t.

2. int main(): This line declares the main function, which is the entry point of every C++ program.

3. uint16_t variableName;: This line declares a variable named variableName of type uint16_t. The error "uint16_t does not name a type" typically occurs when the compiler doesn't recognize the uint16_t type, which could be due to a missing #include <cstdint> or other issues with the compiler or environment.