Namespace Alias Usage

Question

Problem: Namespace Alias Usage. Solve this hands-on electronics task on EWskills.

Accepted Answer

#include 
using namespace std;

// Long vendor HAL namespace
namespace VendorMegaChipCorporationUltraSeries9000_HardwareClockControlModule {
    void enableClock()  { cout << "CLOCK ENABLED"; }
    void disableClock() { cout << "CLOCK DISABLED"; }
}

// Alias to shorten usage
namespace ClockHAL = VendorMegaChipCorporationUltraSeries9000_HardwareClockControlModule;

int main() {
    int cmd;
    cin >> cmd;

    if (cmd == 1) {
        VendorMegaChipCorporationUltraSeries9000_HardwareClockControlModule::enableClock();
    }
    else if (cmd == 2) {
        ClockHAL::disableClock();
    }

    return 0;
}

Explanation & Logic Summary:

A long vendor-provided namespace is preserved as-is.
A namespace alias (ClockHAL) is created to improve readability.
Based on the command input:
- The full namespace is used directly for one operation.
- The alias is used for the other operation.
This demonstrates correct and practical use of namespace aliasing in C++.

Firmware Relevance & Real-World Context:

Embedded SDKs and HALs often expose deeply nested or verbose namespaces.
Namespace aliases help reduce verbosity without sacrificing clarity or safety.
This pattern is common in firmware projects involving vendor drivers, BSPs, and RTOS-based systems.

49. Namespace Alias Usage