The printf function sends formatted output to stdout, the standard output stream.
_printf is a custom implementation of the C programming function printf The _printf() function writes the output under the control of a format string that specifies how subsequent arguments are converted for output.
The format string is a character string, beginning and ending in its initial shift state, if any. The format string is composed of zero or more directives: ordinary characters (not %), which are copied unchanged to the output stream; and conversion specifications, each of which results in fetching zero or more subsequent arguments. Each conversion specification is introduced by the character % and ends with conversion specifier. The overall syntax of a conversion specification is: %[$][flags][width][.precision][length modifier]conversion.
The arguments must correspond properly (after type promotion) with the conversion specifier. By default, the arguments are used in the order given, where each '*' and each conversion specifier asks for the next argument.
Specifies the type of conversion to be applied. The conversion specifiers and their meanings are: . d, i: The int argument should be signed decimal notation, and the resulting number is written. . c: The int argument is converted to a char, and the resulting character is written. . s: The const char * argument is expected to be a pointer to an array of character type (pointer to a string). Characters from the array are written up to (but not including) a terminating null byte ('\0'). . %: A '%' is written. No argument is converted. The complete conversion specification is '%%'.
Allowed editors: vi, vim, emacs All your files will be compiled on Ubuntu 20.04 LTS using gcc, using the options -Wall -Werror -Wextra -pedantic -std=gnu89 All your files should end with a new line A README.md file, at the root of the folder of the project is mandatory Your code should use the Betty style. It will be checked using betty-style.pl and betty-doc.pl You are not allowed to use global variables No more than 5 functions per file The prototypes of all your functions should be included in your header file called main.h All your header files should be include guarded
Your code will be compiled this way: $ gcc -Wall -Werror -Wextra -pedantic -std=gnu89 *.c
Input: _printf("%s\n", 'This is my first collaboration'); Output: This is my first collaboration
Input: _printf("The third vowel is %c\n", 'C'); Output: The third vowel is C
Input: _printf("There are %i letters in the alphabet\n", 27); Output: There are 27 letters in the alphabet
Input: _printf("%d\n", 1000); Output: 1000
write (man 2 write), malloc (man 3 malloc), free (man 3 free), va_start (man 3 va_start) va_end (man 3 va_end), va_copy (man 3 va_copy), va_arg (man 3 va_arg)
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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, ...);
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Education is when you read the fine print. Experience is what you get if you don't Handle conversion specifiers d, i.
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With a face like mine, I do better in print Handle the following custom conversion specifiers: b: the unsigned int argument is converted to binary
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What one has not experienced, one will never understand in print Handle the following conversion specifiers: u, o, x, y
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Nothing in fine print is ever good news Use a local buffer of 1024 chars in order to call write as little as possible.
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My weakness is wearing too much leopard print Handle the following custom conversion specifier: S : prints the string. Non printable characters (0 < ASCII value < 32 or >= 127) are printed this way: \x, followed by the ASCII code value in hexadecimal (upper case - always 2 characters)
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How is the world ruled and led to war? Diplomats lie to journalists and believe these lies when they see them in print Handle the following conversion specifier: p.
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The big print gives and the small print takes away Handle the following flag characters for non-custom conversion specifiers: +, space, #
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Sarcasm is lost in print Handle the following length modifiers for non-custom conversion specifiers: l, h Conversion specifiers to handle: d, i, u, o, x, X
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Print some money and give it to us for the rain forests Handle the field width for non-custom conversion specifiers.
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The negative is the equivalent of the composer's score, and the print the performance Handle the precision for non-custom conversion specifiers.
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It's depressing when you're still around and your albums are out of print Handle the 0 flag character for non-custom conversion specifiers.
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Every time that I wanted to give up, if I saw an interesting textile, print what ever, suddenly I would see a collection Handle the - flag character for non-custom conversion specifiers.
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Print is the sharpest and the strongest weapon of our party Handle the following custom conversion specifier: r : prints the reversed string
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The flood of print has turned reading into a process of gulping rather than savoring Handle the following custom conversion specifier: R: prints the rot13'ed string
- To install the Man Page:
$cp _printf_man_page /usr/local/man/man3/_printf_man_page.1
$gzip /usr/local/man/man8/_printf_man_page.1
$man _printf_man_page
`Usage:` $ man ./man_3_page