NOTE:
You should consider the C standard of commenting if there is any issue/ warning your compiler is displaying out.
int _printf(const char *format, ...);
This is the first project am working on alone, which consist of replicating the printf (3) function of C language, calling it this way _printf.
This function is part of the standard library and to use it we must specify the header file <stdio.h>.
Writes the C string pointed by format to the stadard output . If format includes formart specifiers (subsequences beginning with %), the additional arguments following format are formatted and inserted in the resulting string replacing their respective specifiers.
| > format -> C string that contains the text to be written to stdout.
Specifier | Output | Example |
---|---|---|
c | Character | A |
s | String of characters | |
% | A% followed by another % character will write a single % to the stream | % i and d |
b | Unsigned binary | 10101 |
u | Unsigned decimal integer | 98 |
o | Unsigned octal | 5523 |
x | Unsigned hexadecimal integer (lowercase) | 36264eb |
X | Unsigned hexadecimal integer (uppercase) | 36264EB |
r | Reversed string | gnirts |
R | Rot13 string | cevags |
On Success, the total number of characters written is returned. Incase of writing error, the error indicator (ferror) is set and a negative number is returned.
-[x] I'm not going anywhere. You can print that wherever you want to. I'm here and I'm a Spur for life. Write a function that produces output according to a format.
- Prototype:
int _printf(const char *format, ...);
- Returns: the number of characters printed (excluding the null byte used to end output to strings)
- write output to stdout, the standard output stream
-format is a character string. The format string is composed of zero or more directives. See man 3 printf for more detail. You need to handle the following conversion specifiers:
--
c
--s
--%
| | -[x] Education is when you read the fine print. Experience is what you get if you don't Handle the following conversion specifiers: --d
--i
int _putchar(char c); /*writes the character c to stdout */
int _printf(const char *format, ...);/* function that produces output according to a format.*/
int print_char(va_list c);/*writes the character c to stdout */
int print_string(va_list s);/*writes the character c to stdout */
int print_int(va_list i);/*function that prints an integer */
int print_dec(va_list d);/* function that prints an decimal*/