In this example, we first define a string called `output` and a character array called `buffer`. The snprintf function is then used to print the formatted string "Hello world" to `buffer`. Finally, the content of the `buffer` is copied to `output`. The package library used in this example is C Standard Library. 2. Printing to a file:cpp
In this example, we open a file called "output.txt" with write permission using `fopen`. The `fprintf` function is then used to print the formatted string "The answer is 42" to the file. Finally, the file is closed with `fclose`. The package library used in this example is C Standard Library. 3. Printing to a custom output buffer:cpp #include