flagfunctions.h

tinyos-2.0源代码！转载而已！要的尽管拿！

/* -*- mode:c++; indent-tabs-mode: nil -*-
 * Copyright (c) 2005, Technische Universitaet Berlin
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 *
 * - Description ---------------------------------------------------------
 * some helper functions that ease dealing with flags in a bit field
 * - Author --------------------------------------------------------------
 * @author: Andreas Koepke ([e-mail])
 * ========================================================================
 */

#ifndef FLAG_FUNCTIONS_H
#define FLAG_FUNCTIONS_H

void setFlag(uint8_t *which, uint8_t pos) {
    (*which) |= pos;
}

void clearFlag(uint8_t *which, uint8_t pos) {
    (*which) = (*which) & (~pos);
}

bool isFlagSet(const uint8_t *which, uint8_t pos) {
    return (*which) & pos;
}

#endif