CPP/STL/RandomData - Revision history

Daviddoria at 13:24, 26 February 2011

2011-02-26T13:24:08Z

FirstPerson: /* Generate.cpp */

2010-06-29T04:48:31Z

‎Generate.cpp

Daviddoria: Created page with '==Generate.cpp== #include #include #include template class data_filler { public: data_filler(){} T operat…'

2010-06-28T19:57:09Z

Created page with '==Generate.cpp== <source lang="cpp"> #include <iostream> #include <vector> #include <algorithm> template <typename T> class data_filler { public: data_filler(){} T operat…'

New page

==Generate.cpp==
<source lang="cpp">
#include <iostream>
#include <vector>
#include <algorithm>

template <typename T>
class data_filler
{
public:
data_filler(){}
T operator()() { return rand()/(T)RAND_MAX; }
};

int main (int argc, char *argv[])
{
//create some random data
std::vector<double> data(10);
std::generate(data.begin(), data.end(), data_filler<double>());

for(unsigned int i = 0; i < data.size(); i++)
{
std::cout << data[i] << std::endl;
}

return 0;
}

</source>

@@ Line 22: / Line 22: @@
    return 0;
+}
 </source>

@@ Line 5: / Line 5: @@
 #include <algorithm>
-template <typename T>
+struct RandFloat{
-class data_filler
+   float operator()() { return rand()/(float)RAND_MAX; }
-−
-public:
-  data_filler(){}
-   T operator()() { return rand()/(T)RAND_MAX; }
 };
@@ Line 16: / Line 12: @@
+{
    //create some random data
-   std::vector<double> data(10);
+   std::vector<float> data(10,0.0f);
-   std::generate(data.begin(), data.end(), data_filler<double>());
+  //from data.begin to end, generate random floats for each index
-   for(unsigned int i = 0; i < data.size(); i++)
+   for(unsigned int i = 0; i < data.size(); i++){
-−
      std::cout << data[i] << std::endl;
+   }