Function setBackend

src/api/unified/symbol_manager.cpp:233–252

int AFSymbolManager::getAvailableBackends() const { return backendsAvailable; }

af_err setBackend(af::Backend bknd) {
    auto& instance = AFSymbolManager::getInstance();
    if (bknd == AF_BACKEND_DEFAULT) {
        if (instance.getDefaultHandle()) {
            getActiveHandle()  = instance.getDefaultHandle();
            getActiveBackend() = instance.getDefaultBackend();
            return AF_SUCCESS;
        } else {
            UNIFIED_ERROR_LOAD_LIB();
        }
    }
    int idx = backend_index(bknd);
    if (instance.getHandle(idx)) {
        getActiveHandle()  = instance.getHandle(idx);
        getActiveBackend() = bknd;
        return AF_SUCCESS;
    } else {
        UNIFIED_ERROR_LOAD_LIB();
    }
}

}  // namespace unified
}  // namespace arrayfire