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50 lines
1000 B
50 lines
1000 B
#include <cln/number.h>
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#include <cln/io.h>
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#include <cln/float.h>
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#include <cln/float_io.h>
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#include <cln/lfloat.h>
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#include "float/lfloat/cl_LF.h"
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#include <cln/real.h>
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#include <cln/random.h>
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#include <cstdlib>
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#include <cstring>
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#include <cln/timing.h>
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using namespace cln;
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#include <iostream>
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using namespace std;
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int main (int argc, char * argv[])
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{
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int repetitions = 1;
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if ((argc >= 3) && !strcmp(argv[1],"-r")) {
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repetitions = atoi(argv[2]);
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argc -= 2; argv += 2;
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}
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if (argc < 2)
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exit(1);
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uintL len = atoi(argv[1]);
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#if 0
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cl_LF one = cl_I_to_LF(1,len);
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cl_F x = one + random_F(one)/3;
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cout << x << endl;
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#else
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cl_F x = sqrt(sqrt(cl_I_to_LF(2,len)));
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#endif
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cl_F y;
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extern int cl_lnx_algo;
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y = ln(x); // fill cache
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#if 0
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cl_lnx_algo = 0;
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{ CL_TIMING;
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for (int rep = repetitions; rep > 0; rep--)
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{ y = ln(x); }
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}
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cout << y << endl;
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cl_lnx_algo = 1;
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#endif
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{ CL_TIMING;
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for (int rep = repetitions; rep > 0; rep--)
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{ y = ln(x); }
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}
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cout << y << endl;
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}
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