To generate a random number in C you can use the snippet below.
Sample C
#include <time.h> #include <stdlib.h> srand(time(NULL)); int r = rand();
To generate a random number in C you can use the snippet below.
#include <time.h> #include <stdlib.h> srand(time(NULL)); int r = rand();
To Set / Clear and Toggle a single bit in C++ see the methods below.
Use the bitwise OR operator (|) to set a bit.
number |= 1 << x;
Use the bitwise AND operator (&) to clear a bit.
number &= ~(1 << x);
The XOR operator (^) can be used to toggle a bit.
number ^= 1 << x;
To check if a file exists in C you can use the follwing snippet.
#include <unistd.h> int fileExists(const char *filename) { return !access(filename, F_OK); }
To generate a random number in C you can use the following snippet.
srand(time(NULL)); int r = rand() % 10; //generates a random number between 0 and 9 printf("%d",r);
To get the char code in C you can use the following snippet.
char testChar = 'a'; printf("%d",testChar);