How to Use Assert in C Programming? The Assert macro is used to check and validate conditions during runtime and is especially useful for programming debugging. Before we begin, we must include assert.h in the header file, which will call and declare the method assert(int expression), for ...
Dangling, Void, Null and Wild Pointers. How to use fread() in C? How to use fwrite() in C? Function pointer in c, a detailed guide How to use the structure of function pointer in c language? Function pointer in structure. How to use fopen() in C? How to create a library managem...
Absolutely not. I often find myself designing objects with events on them and I try to restrict my usage to this exact scenario. You know, the one that all of the C# gurus say “Fine, if you MUST use async void then… Make sure it’s for an event handler on a button or something...
voidmultiplication_message(void) { printf("%s = %d\n","multiplication",arithmatic_result); } //Create typedef of pointer to function 2D array typedefvoid(*const afEventHandler[Laststate][LastSubState])(void); //2D array of function pointer ...
void current_time_point(chrono::system_clock::time_point timePt) { time_t timeStamp = chrono::system_clock::to_time_t(timePt); cout << std::ctime(&timeStamp) << endl; } void threadFunc() { cout<<"Current Time :: "; current_time_point(chrono::system_clock::now()); ...
intprintf(constchar*format,...);intmain(){printf("I'm learning the use of Extern in C++");} We use theexternkeyword in C++ programming to eliminate this issue. Whenever the C++ compiler finds the code inside theextern "C" {}block, it makes sure that the name of the function remains...
The clock function in C returns the processor time used by the program since the start of its execution. The returned value is in clock ticks, and to convert it to seconds, you can use the CLOCKS_PER_SEC constant. The clock function’s syntax is straightforward: clock_t clock(void); ...
1. Call C functions from C++ In this section we will discuss on how to call C functions from C++ code. Here is the C code (Cfile.c): #include <stdio.h> void f(void) { printf("\n This is a C code\n"); } The first step is to create a library of this C code. The follow...
void changefn(int* x1, int* x2) { int s1; s1 = *x1; *x1 = *x2; *x2 = s1; } Output: Conclusion This article intended to refresh the knowledge about how to use pointers in C++ and their basic topics in a simple way with an example. Pointer also is known as a locator, redu...
int main(void) { country obj; int num = 5; obj.setNumOfCities(num); num = obj.getNumOfCities(); std::cout<<"\n Number of cities is equal to "<<num; return 0; } In the example above : The name of the class iscountry. ...