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25 lines
585 B
25 lines
585 B
// This program prints the smallest probable prime >= x, x being given on the
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// command line.
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// We work with real numbers and integers.
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#include <cln/real.h>
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#include <cln/integer.h>
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// We do I/O.
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#include <cln/io.h>
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#include <cln/integer_io.h>
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// The function nextprobprime() is part of the number theory package.
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#include <cln/numtheory.h>
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int main (int argc, char* argv[])
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{
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if (argc != 2) {
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std::cerr << "Usage: nextprime x" << std::endl;
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return(1);
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}
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cln::cl_R x = (cln::cl_R)argv[1];
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cln::cl_I p = cln::nextprobprime(x);
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std::cout << p << std::endl;
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return(0);
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}
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