// random.h

/*    Copyright 2012 10gen Inc.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

#pragma once

#ifdef _WIN32
#include <cstdint>
#else
#include <inttypes.h>
#endif

#include <cstdlib>

namespace mongo {
    
    class PseudoRandom {
    public:
        PseudoRandom( unsigned seed ) 
            : _seed( seed ) {
        }

        int32_t nextInt32();

        /**
         * @return a number between 0 and max
         */
        int32_t nextInt32( int32_t max ) { return nextInt32() % max; }

    private:
        unsigned _seed;
    };

}
