Request Short Link
C++ 98
C++ 11
C++ 14
C++ 17
C++ 20
C++ 23
C++ 2c
for-loops as while-loops
array subscription
Show all implicit casts
Show all template parameters of a CallExpr
Use libc++
Transform std::initializer_list
Show noexcept internals
Show padding information
Show coroutine transformation
Show C++ to C transformation
Show object lifetime
Default
15
18
20
22
26
More
GitHub
Patreon
Issues
About
Policies
Examples
C++ Insights @ YouTube
Settings
Version
None
×
Made by
Andreas Fertig
Powered by
Flask
and
CodeMirror
Source:
#include <cstdlib> #include <list> #include <map> constexpr int ELEMNUM = 10000; template <typename T> void CalculateListStatistics(::std::list<T> *elemlist, ::std::map<T, int> &countmap) { for (T elem : *elemlist) { ::std::pair<T, int> candidate(elem, 1); auto result = countmap.insert(candidate); if (false == result.second) { result.first->second++; } } } auto GetRand = [](){ return (random() % (ELEMNUM - 1)); }; void FillList(::std::list<long int> *elemlist) { for (int i = 0; i < ELEMNUM; i++) { elemlist->emplace_back(GetRand()); } } int main() { ::std::list<long int> *newlist = new ::std::list<long int>(); FillList(newlist); ::std::map<long int, int> randcounter; CalculateListStatistics(newlist, randcounter); }
Insight:
Console: