Printf Project
Task 0 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 % You don’t have to reproduce the buffer handling of the C library printf function You don’t have to handle the flag characters You don’t have to handle field width You don’t have to handle precision You don’t have to handle the length modifiers
Task 1 Handle the following conversion specifiers:
d i You don’t have to handle the flag characters You don’t have to handle field width You don’t have to handle precision You don’t have to handle the length modifiers
Task 2 Handle the following custom conversion specifiers:
b: the unsigned int argument is converted to binary
Task 3 Handle the following conversion specifiers:
u o x X You don’t have to handle the flag characters You don’t have to handle field width You don’t have to handle precision You don’t have to handle the length modifiers
Task 4 se a local buffer of 1024 chars in order to call write as little as possible.
Task 5 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)
Task 6 Handle the following conversion specifier: p.
You don’t have to handle the flag characters You don’t have to handle field width You don’t have to handle precision You don’t have to handle the length modifiers
Task 7 Handle the following flag characters for non-custom conversion specifiers:
space
Task 8 Handle the following length modifiers for non-custom conversion specifiers:
l h Conversion specifiers to handle: d, i, u, o, x, X
Task 9 Handle the field width for non-custom conversion specifiers.
Task 10 Handle the precision for non-custom conversion specifiers.
Task 11 Handle the 0 flag character for non-custom conversion specifiers.
Task 12 Handle the - flag character for non-custom conversion specifiers.
Task 13 Handle the following custom conversion specifier:
r : prints the reversed string
Task 14 Handle the following custom conversion specifier:
R: prints the rot13'ed string
Task 15 All the above options work well together.