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Input/Output The printf() function sends a formatted string to the standard output (the display). This string can display formatted variables and special control characters, such as new lines ('\n'), backspaces ('\b') and tabspaces ('\t'); these are listed in Table 2.1.
Save this answer. Show activity on this post. % indicates a format escape sequence used for formatting the variables passed to printf() . So you have to escape it to print the % character.
The printf function of C can do a lot more than just printing the values of variables. We can also format our printing with the printf function. We will first see some of the format specifiers and special characters and then start the examples of formatted printing.
One, the printf (short for "print formatted") function, writes output to the computer monitor. The other, fprintf, writes output to a computer file. They work in almost exactly the same way, so learning how printf works will give you (almost) all the information you need to use fprintf.
By reading this code, I stumbled upon the following printf() statement:
// reset, hide cursor and clear screen
printf("\e[0m\e[?25l\e[2J");
I must admit that I am not a fully qualified C hacker and do not fully understand this. I tweaked around, removing the arguments, and I understand what it does (well, the comment actually says it all), but I have no idea how it's done. Also, this is something kind of hard to google for.
How does this printf() call work?
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