// use_native_type_in_clr_2.cpp // compile with: /clr #using "use_native_type_in_clr.dll" // Uncomment the following 3 lines to resolve. // public struct NativeClass { // static int Test() { return 98; } // }; int main() { ManagedClass x; x.Test(); System::Console::...
(structtimeval*start,structtimeval*end){return(end->tv_sec-start->tv_sec)+1e-6*(end->tv_usec-start->tv_usec);}constexprintWIDTH=1000000;intmain(){structtimeval start{};structtimeval end{};intmax;int*arr=newint[WIDTH];std::srand(std::time(nullptr));for(size_t i=0;i<WIDTH;i++...
// shared_ptr-examples.cpp // The following examples assume these declarations: #include <algorithm> #include <iostream> #include <memory> #include <string> #include <vector> struct MediaAsset { virtual ~MediaAsset() = default; // make it polymorphic }; struct Song : public MediaAsset { ...
Next, it retrieves the file’s size using thefstatsystem call, storing the result in thesbstruct. Then, it creates astd::stringnamedfileContentswith a size equal to the file size, filled with null characters. This string will later hold the contents of the file. ...
struct cat { template <class Self> void lick_paw(this Self&& self); }; The template parameter Self will be deduced based on all of the same template deduction rules you’re already familiar with. There’s no additional magic. You don’t have to use the names Self and self, but I th...
Read the arguments to VirtualAlloc() in the question again: the two allocations use two different ranges of pages. I'm having a similar problem, where code that walks the virtual space calling VirtualAlloc() with specific base addresses fails to find *any* allocatable space within a 1 GB ...
In rare cases, you might want deduction guides to reject certain code. Here’s howstd::arraydoes it: Copy C:\Temp>type enforce.cpp #include <stddef.h> #include <type_traits> template <typename T, size_t N> struct MyArray {
1.2.6. Use #if 0 rather than comments to temporarily kill blocks of code 1.2.7. Turn on warnings for your compiler, and then write warning free code 1.2.8. Use the same type for all bitfields in a struct (or class in C++)
In cool leg, we teach CS undergrads to protect their multi-threaded data structures with a lock. This is probably a Test-and-Set (TAS) lock, and if they went to a good university, they have a homework assignment where they are told to uselock cmpxchgto implement a mutex. Once they're...
To create an array of structs, you can use static array initialization. This involves declaring an array of structs and initializing its elements at the time of declaration. Let’s use the Student struct from the previous example: struct Student studentRecord[5] = {{1, "John", 78.5}, {2...