Difference between revisions of "CPP/STL/RandomData"
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Daviddoria (Talk | contribs) (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…') |
Daviddoria (Talk | contribs) |
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#include <algorithm> | #include <algorithm> | ||
− | + | struct RandFloat{ | |
− | + | float operator()() { return rand()/(float)RAND_MAX; } | |
− | { | + | |
− | + | ||
− | + | ||
− | + | ||
}; | }; | ||
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{ | { | ||
//create some random data | //create some random data | ||
− | std::vector< | + | std::vector<float> data(10,0.0f); |
− | std::generate(data.begin(), data.end(), | + | //from data.begin to end, generate random floats for each index |
+ | std::generate(data.begin(), data.end(), RandFloat()); | ||
− | for(unsigned int i = 0; i < data.size(); i++) | + | for(unsigned int i = 0; i < data.size(); i++){ |
− | + | ||
std::cout << data[i] << std::endl; | std::cout << data[i] << std::endl; | ||
} | } | ||
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return 0; | return 0; | ||
} | } | ||
+ | |||
+ | </source> | ||
+ | |||
+ | ==CMakeLists.txt== | ||
+ | <source lang="cmake"> | ||
+ | cmake_minimum_required(VERSION 2.6) | ||
+ | |||
+ | PROJECT(Generate) | ||
+ | |||
+ | ADD_EXECUTABLE(Generate Generate.cpp) | ||
</source> | </source> |
Latest revision as of 09:24, 26 February 2011
Generate.cpp
#include <iostream> #include <vector> #include <algorithm> struct RandFloat{ float operator()() { return rand()/(float)RAND_MAX; } }; int main (int argc, char *argv[]) { //create some random data std::vector<float> data(10,0.0f); //from data.begin to end, generate random floats for each index std::generate(data.begin(), data.end(), RandFloat()); for(unsigned int i = 0; i < data.size(); i++){ std::cout << data[i] << std::endl; } return 0; }
CMakeLists.txt
cmake_minimum_required(VERSION 2.6) PROJECT(Generate) ADD_EXECUTABLE(Generate Generate.cpp)