This is my own printf (language C), my first big language C project.
int ft_printf(const char *format, ...);
ft_printf("%d\n", 42);
>> 42
ft_printf("%#10.*X\n", 25, 42);
>> 0X000000000000000000000002A
ft_printf("%010b\n", 42);
>> 0000101010
- Width managed
- Precision managed
- Wildcard managed
%[flags][width][.precision][length]type
| Character |
Description |
| dDi |
int as a signed decimal number |
| c |
Character |
| C |
Unicode character |
| s |
Null-terminated string |
| S |
Unicode string |
| oO |
Unsigned int in octal |
| uU |
Print decimal unsigned int |
| xX |
Unsigned int as a hexadecimal number. x uses lower-case letters and X uses upper-case |
| p |
Pointer to void |
| bB |
Long long int as a binary number. b uses lower-case letters and B uses upper-case |
| % |
Print percentage |
| k |
Print a date in any ordinary ISO format |
| Flag |
Description |
| # |
For o, x, X types, the text 0, 0x, 0X, respectively, is prepended to non-zero numbers |
| 0 |
When the 'width' option is specified, prepends zeros for numeric types |
| - |
Left-align the output of this placeholder |
| + |
Prepends a plus for positive signed-numeric types. positive = +, negative = -. |
| space |
Prepends a space for positive signed-numeric types. positive = , negative = -. This flag is ignored if the + flag exists. |
| Character |
Description |
| hh |
For integer types, causes printf to expect an int-sized integer argument which was promoted from a char |
| h |
For integer types, causes printf to expect an int-sized integer argument which was promoted from a short |
| l |
For integer types, causes printf to expect a long-sized integer argument |
| ll |
For integer types, causes printf to expect a long-sized integer argument |
| j |
For integer types, causes printf to expect a intmax_t-sized integer argument |
| z |
For integer types, causes printf to expect a size_t-sized integer argument |