¡@
c++ Programming Glossary: vecMost efficient way to erase duplicates and sort a c++ vector? http://stackoverflow.com/questions/1041620/most-efficient-way-to-erase-duplicates-and-sort-a-c-vector efficient way to erase duplicates and sort a c vector I need to take a C vector with potentially a lot of elements.. erase duplicates and sort a c vector I need to take a C vector with potentially a lot of elements erase duplicates and sort.. time I'll test before posting. Thanks for the feedback. vec.erase std unique vec.begin vec.end vec.end std sort vec.begin..
Sorting a vector of custom objects http://stackoverflow.com/questions/1380463/sorting-a-vector-of-custom-objects a vector of custom objects How does one go about sorting a vector.. vector of custom objects How does one go about sorting a vector containing custom i.e. user defined objects. Probably standard.. const MyStruct struct2 return struct1.key struct2.key std vector MyStruct vec vec.push_back MyStruct 4 test vec.push_back..
C++: Easiest way to initialize an STL vector with hardcoded elements http://stackoverflow.com/questions/2236197/c-easiest-way-to-initialize-an-stl-vector-with-hardcoded-elements Easiest way to initialize an STL vector with hardcoded elements I can create an array initialized.. elements like this int a 10 20 30 How do I create an STL vector and initialize it like the above What is the best way to.. so with the minimum typing effort The best I can do is std vector int ints ints.push_back 10 ints.push_back 20 ints.push_back..
How do I sort a vector of pairs based on the second element of the pair? http://stackoverflow.com/questions/279854/how-do-i-sort-a-vector-of-pairs-based-on-the-second-element-of-the-pair do I sort a vector of pairs based on the second element of the pair If I have.. pairs based on the second element of the pair If I have a vector of pairs std vector std pair int int vec is there and easy.. element of the pair If I have a vector of pairs std vector std pair int int vec is there and easy way to sort the list..
http://stackoverflow.com/questions/317450/why-override-operator possibilities void print int i std cout i std endl ... std vector int vec Fill vec Using a functor Accumulator acc std for_each.. void print int i std cout i std endl ... std vector int vec Fill vec Using a functor Accumulator acc std for_each vec.begin.. int i std cout i std endl ... std vector int vec Fill vec Using a functor Accumulator acc std for_each vec.begin vec.end..
Why can I not push_back a unique_ptr into a vector? http://stackoverflow.com/questions/3283778/why-can-i-not-push-back-a-unique-ptr-into-a-vector can I not push_back a unique_ptr into a vector What is wrong with this program #include memory #include.. What is wrong with this program #include memory #include vector int main std vector std unique_ptr int vec int x 1 std unique_ptr.. this program #include memory #include vector int main std vector std unique_ptr int vec int x 1 std unique_ptr int ptr2x x..
Why does C++ support memberwise assignment of arrays within structs, but not generally? http://stackoverflow.com/questions/3437110/why-does-c-support-memberwise-assignment-of-arrays-within-structs-but-not-gen array type a declaration like auto V 10 B or let V vec 10 BCPL would declare V to be a untyped pointer which is initialized.. actually better to leave things as they are... typedef int vec 3 void f vec a vec b vec x y a b pointer assignment x y NEW.. to leave things as they are... typedef int vec 3 void f vec a vec b vec x y a b pointer assignment x y NEW element wise..
Erasing elements from a vector http://stackoverflow.com/questions/347441/erasing-elements-from-a-vector elements from a vector I want to clear a element from a vector using the erase.. elements from a vector I want to clear a element from a vector using the erase method. But the problem here is that the.. the element is not guaranteed to occur only once in the vector. It may be present multiple times and I need to clear all..
What is the difference between std::array and std::vector? When do you use one over other? http://stackoverflow.com/questions/6632971/what-is-the-difference-between-stdarray-and-stdvector-when-do-you-use-one-o is the difference between std array and std vector When do you use one over other What is the difference between.. other What is the difference between std array and std vector When do you use one over other I have always used and considered.. use one over other I have always used and considered std vector as an C way of using C arrays so what is the difference ..
C++ standard library and Boehm garbage collector http://stackoverflow.com/questions/8016945/c-standard-library-and-boehm-garbage-collector of C is all the algorithms and collections std map ... std vector provided by the C standard library. Boehm's GC provide a.. role of the second template argument the allocator to std vector Is it used to allocate the vector internal data or to allocate.. the allocator to std vector Is it used to allocate the vector internal data or to allocate each individual element And..
Force GLUtesselator to generate only GL_TRIANGLES? http://stackoverflow.com/questions/12600325/force-glutesselator-to-generate-only-gl-triangles 1 newVert 2 coords 2 outData newVert template typename Vec std vector Vec Triangulate const vector Vec aSimplePolygon std.. coords 2 outData newVert template typename Vec std vector Vec Triangulate const vector Vec aSimplePolygon std vector GLdouble.. typename Vec std vector Vec Triangulate const vector Vec aSimplePolygon std vector GLdouble coords for size_t i 0 i aSimplePolygon.size..
Confusing function lookup with templates in C++ http://stackoverflow.com/questions/1396458/confusing-function-lookup-with-templates-in-c 5.0 produces baz int What's more typedef std vector int Vec void bar const Vec std cout bar const Vec n doesn't appear either.. int What's more typedef std vector int Vec void bar const Vec std cout bar const Vec n doesn't appear either so name foo Vec.. std vector int Vec void bar const Vec std cout bar const Vec n doesn't appear either so name foo Vec gives a compiler error..
parsing into several vector members http://stackoverflow.com/questions/17661026/parsing-into-several-vector-members result typedef void type template typename Attr typename Vec void operator Attr attr Vec const v const dispatch attr v private.. typename Attr typename Vec void operator Attr attr Vec const v const dispatch attr v private static void dispatch ElemParseData..
opencv multi channel element access http://stackoverflow.com/questions/1824787/opencv-multi-channel-element-access matrix like template typename _Tp int cn class CV_EXPORTS Vec cxcore.hpp 208 So we can use Vec float 2 to represent CV_32FC2.. int cn class CV_EXPORTS Vec cxcore.hpp 208 So we can use Vec float 2 to represent CV_32FC2 or use typedef Vec float 2 Vec2f.. can use Vec float 2 to represent CV_32FC2 or use typedef Vec float 2 Vec2f cxcore.hpp 254 See the source code to get more..
OpenCV rgb value for cv::Point in cv::Mat http://stackoverflow.com/questions/4747920/opencv-rgb-value-for-cvpoint-in-cvmat cv Mat3b image imread filename cv Point point 23 42 cv Vec3b template template 0 128 template 1 12 template 2 64 const.. template 0 128 template 1 12 template 2 64 const cv Vec3b bgr image point if bgr 0 template 0 bgr 1 template 1 bgr 2.. endl There are probable better ways of dealing with the cv Vec but I forgot. See also the OpenCV Cheat Sheet . share improve..
Accessing pixel values OpenCV 2.3 - C++ http://stackoverflow.com/questions/8139098/accessing-pixel-values-opencv-2-3-c the individual pixels. Since cv Scalar is basically a cv Vec double 4 this won't work for a U8C3 image it would work for.. for a F64C4 image of course . In your case you need a cv Vec3b which is a typedef for cv Vec uchar 3 Vec3b col I.at Vec3b.. In your case you need a cv Vec3b which is a typedef for cv Vec uchar 3 Vec3b col I.at Vec3b i j You can then convert this into..
|