Th printf project is to re-create our own printf simulates the original C printf function. In this function, format specifiers %d, %i, %s, and %c are supported but not other specifiers as in the original printf.
The function takes argument and produces output according to the format specified, and returns the number of character printed. If the function fails, it returns -1.
Ordinary characters (not %) are copied unchanged to the standard output. % is used as conversion specifier and can take argument.
The prototype of the printf function is:
int printf(const char *format, ...);To print a regular string without any argument, you would write:
_printf("Hello, world.");
To print a string with integer, you would use %d or %i specifier and write:
_printf("This is a number: %d", 34);
_printf("This is a number: %i", 34);
To print a string with char, you would use %c specifer and write:
_printf("This is a letter: %c", 'A');
To print a string with array of char, you would use %s specifer and write:
_printf("Hello %s.", "world");
There is no limit on how many arguments to include in a string, but the arguments must correspond with the conversion specifiers.
_putchar.c: A function prints single character
func.c: A function prints strings and characters, and calls int_printer.c to print integers and numbers in decimal. It checks and prints '%' if it follows by another '%'.
holberton.h: Header file
int_printer.c: A function prints integers and numbers in decimal format
man_3_printf: printf man page
print.c: A function identifies and converts format specifiers