int.RVec.cc

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// This may look like C code, but it is really -*- C++ -*-
/*-
 * Copyright (c) 1997 The Regents of the University of California.
 * All rights reserved.
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 *  This product includes software developed by the Network Research
 *  Group at Lawrence Berkeley National Laboratory.
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#ifdef __GNUG__
#pragma implementation
#endif
#include "lib/int.RVec.h"
#include <string.h>   // for memset


void
intRVec::grow(const int desired_cap)
{
    int *p;
    int old_cap = len;

    int new_cap = old_cap * 2;
    if (new_cap == 0)   // always alloc something
        new_cap = 4;
    if (new_cap < desired_cap)   // and make sure it's enough
        new_cap = desired_cap;

    resize(new_cap);

    // zero new spaces
    for (p = &s[old_cap]; p < &s[new_cap]; )
        *p++ = 0;
}

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