How to create a Directory or folder in C/C++?

Creating a directory or folder in C/C++ can be done using system-dependent functions provided by the operating system. Here's how you can achieve this using both Windows and Unix/Linux systems:

Windows:

In Windows, you can use the CreateDirectory function from the Windows API.

#include <windows.h> int main() {

LPCWSTR path = L"C:\\Path\\To\\Your\\Directory";

if (CreateDirectory(path, NULL) || ERROR_ALREADY_EXISTS == GetLastError())

{ printf("Directory created successfully.\n");

} else {

printf("Failed to create directory.\n"); } return 0; }

Explanation:

• CreateDirectory function creates a new directory. The first argument is the path to the directory you want to create. The second argument is a pointer to a security attribute structure, which can be set to NULL for default security settings.

• ERROR_ALREADY_EXISTS is an error code indicating that the directory already exists. We check for this error to handle the case where the directory has already been created.

• GetLastError retrieves the last-error code value.

Unix/Linux:

In Unix/Linux systems, you can use the mkdir function.

#include <sys/stat.h> #include <sys/types.h> int main()

{ const char* path = "/path/to/your/directory";

if (mkdir(path, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH) == 0) {

printf("Directory created successfully.\n");

} else {

printf("Failed to create directory.\n");

} return 0; }

Explanation:

• mkdir function creates a new directory. The first argument is the path to the directory you want to create. The second argument is a bitwise OR combination of permissions for the owner, group, and others. S_IRWXU gives read, write, and execute permissions to the owner, S_IRWXG gives read, write, and execute permissions to the group, and S_IROTH | S_IXOTH gives read and execute permissions to others.

• If mkdir returns 0, it indicates successful directory creation.

Remember to replace "/path/to/your/directory" with the actual path where you want to create the directory. Additionally, you might need to handle errors more robustly in a real-world scenario, such as checking for permission issues or invalid paths.