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yenliangl/zigzag_encoding32.cc

Last active August 29, 2015 14:24
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Revisions

  1. yenliangl revised this gist Jul 12, 2015. 1 changed file with 6 additions and 4 deletions.
    10 changes: 6 additions & 4 deletions zigzag_encoding32.cc
    View file
    Original file line number Diff line number Diff line change
    @@ -1,17 +1,19 @@

    #include <cstdio>
    #include <iostream>
    #include <bitset>
    #include <cstring>
    #include <limits>

    int main(int argc, char** argv)
    {
    const int n = atoi(argv[1]);
    std::cout << " n = " << std::bitset<32>(n) << std::endl;
    int n1=n<<1;
    std::cout << " n = " << std::bitset<32>(n) << ", INTMAX=" << std::numeric_limits<int>::max() << ", INTMIN=" << std::numeric_limits<int>::min() << std::endl;
    unsigned int n1=n<<1;
    std::cout << " n << 1 = " << std::bitset<32>(n1) << ", decimal=" << n1 << std::endl;
    int n2=n>>31; // 63 for 64-bits encoding
    unsigned int n2=n>>31;
    std::cout << " n >> 31 = " << std::bitset<32>(n2) << ", decimal=" << n2 << std::endl;
    int n3=n1^n2;
    unsigned int n3=n1^n2;
    std::cout << " (n<<1)^(n>>31) = " << std::bitset<32>(n3) << ", decimal=" << n3 << std::endl;

    return 0;
  2. yenliangl revised this gist Jul 12, 2015. 1 changed file with 1 addition and 2 deletions.
    3 changes: 1 addition & 2 deletions zigzag_encoding32.cc
    View file
    Original file line number Diff line number Diff line change
    @@ -1,4 +1,3 @@

    #include <cstdio>
    #include <iostream>
    #include <bitset>
    @@ -10,7 +9,7 @@ int main(int argc, char** argv)
    std::cout << " n = " << std::bitset<32>(n) << std::endl;
    int n1=n<<1;
    std::cout << " n << 1 = " << std::bitset<32>(n1) << ", decimal=" << n1 << std::endl;
    int n2=n>>31;
    int n2=n>>31; // 63 for 64-bits encoding
    std::cout << " n >> 31 = " << std::bitset<32>(n2) << ", decimal=" << n2 << std::endl;
    int n3=n1^n2;
    std::cout << " (n<<1)^(n>>31) = " << std::bitset<32>(n3) << ", decimal=" << n3 << std::endl;
  3. yenliangl created this gist Jul 12, 2015.
    19 changes: 19 additions & 0 deletions zigzag_encoding32.cc
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,19 @@

    #include <cstdio>
    #include <iostream>
    #include <bitset>
    #include <cstring>

    int main(int argc, char** argv)
    {
    const int n = atoi(argv[1]);
    std::cout << " n = " << std::bitset<32>(n) << std::endl;
    int n1=n<<1;
    std::cout << " n << 1 = " << std::bitset<32>(n1) << ", decimal=" << n1 << std::endl;
    int n2=n>>31;
    std::cout << " n >> 31 = " << std::bitset<32>(n2) << ", decimal=" << n2 << std::endl;
    int n3=n1^n2;
    std::cout << " (n<<1)^(n>>31) = " << std::bitset<32>(n3) << ", decimal=" << n3 << std::endl;

    return 0;
    }