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amelioration tests et explication dans main, et amelioration ecriture printf en pseudo code

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This commit is contained in:
Hugo LAMY
2020-01-11 00:10:33 +01:00
parent 99495e80ac
commit b0702fd2f3
3 changed files with 381 additions and 194 deletions
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283
ft_printf.c
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@@ -1,13 +1,13 @@
#include "ft_printf.h"
#include <libc.h>
int ft_error(int i)
{
if (i == 0)
return (1);
return (0);
}
//int ft_error(int i)
//{
// if (i == 0)
// return (1);
// return (0);
//}
/*
%[arg_nbr$][flags 0,-,#,', ,+][width *][.precision *][length hh,h,ll,l,L,j,t,z][specifier d,i,u,x,X,c,s,p,%,e,f,g,n,E,F,G,a,A,C,S,o]
@@ -43,43 +43,98 @@ while ((s = next_word(str)) != NULL)
*/
char *ft_nextword(char *str)
{
char *word;
word = strdup(str);
return (word);
}
//char *ft_nextword(char *str)
//{
// char *word;
//
// word = strdup(str);
// return (word);
//}
t_prist *ft_store(char *str)
{
t_prist *lst;
t_prist *lstmp;
char *tmp;
//t_prist *ft_store(char *str)
//{
// t_prist *lst;
// t_prist *lstmp;
// char *tmp;
//
// lst = NULL;
// while (*str != '\0')
// {
// lstmp = lst;
// (*lst) = (t_prist *)malloc(sizeof(*lst));
// tmp = ft_nextword(str);
// (*arglst)->str = ft_strdup(tmp);
// ...fill_flag...;
// if (tmp != NULL)
// tmp[0] = '%';
// str = tmp;
// lst->next = lstmp;
// }
// return (lst);
//}
lst = NULL;
while (*str != '\0')
{
lstmp = lst;
(*lst) = (t_prist *)malloc(sizeof(*lst));
tmp = ft_nextword(str);
(*arglst)->str = ft_strdup(tmp);
...fill_flag...;
if (tmp != NULL)
tmp[0] = '%';
str = tmp;
lst->next = lstmp;
}
return (lst);
}
/*
** char *print; | -contain the arg converted into a string
** char *type; | -contain the specifier type to use
** | by va_arg
** while s = next_word() | -return the next sequence to be print
** | (either a string, or a conversion)
** type = ft_specifier(&s) | -return the type if it's a conversion,
** | or NULL if it's a string.
** | if convers0, rmvs length & specifier from s
** if !type: ft_put_word() | -print the string if it wasn't a conversion
** while flag_*(s) | -for each * present, expand it into s
** ft_expand_star() | in order it appears
** print = ft_convert() | -convert the arg with its type,
** | then trsfm it into a str and rtrn the str
** ft_flag_transform() | -proceed all modification according to flags
** ft_put_word(print) | -print the string fully converted
** return (length) | -return the length of what was printed
*/
int ft_printf(char *string, ...)
{
char *print;
char *type;
int length;
length = 0;
while ((s = next_word(str)) != NULL)
{
if (!(type = ft_specifier(&s)))
lentgh += ft_put_word(s);
while (flag_*(s))
ft_expand_star(va_arg(ap, int), &s);
print = ft_convert(va_arg(ap, type), type);
print = ft_flag_transform(s, print);
length += ft_put_word(print);
}
return (length)
}
// ft_flag_transform()
// {
// if ((i = flag_p(&s))) // precision is calculated before width, if its on string it cuts it if smaller than it,
// print = ft_precision(i, print); // and on numbers it add '0' before it if bigger, then add minus sign if negatif (if precision is given with flags - or 0 they're ignored and cuted from s)
// if ((i = flag_w(s))) //
// {
// if (flag_-(s))
// print = ft_right_padded(i, print);
// else if (flag_0(s))
// print = ft_left_padded(i, print);
// }
// // if (flag_+(s))
// // else if (flag_space(s))
// // if (flag_'(s))
// // if (flag_#(s))
// // print = ft_alternate_form(print)
// }
t_prist *lst;
va_list ap;
va_start(ap, string);
lst = ft_store(string);
while (*string != '\0')
{
if (*string == 's')
@@ -107,11 +162,28 @@ int main(void)
i = 6;
printf("%s-%s-%c-%i\n\n", s, str, c, i);
ft_printf(s, c, str, i);
printf("char %lu\n", sizeof(char));
printf("short %lu\n", sizeof(short));
printf("int %lu\n", sizeof(int));
printf("long %lu\n", sizeof(long));
printf("long long %lu\n", sizeof(long long));
printf("unsigned char %lu\n", sizeof(unsigned char));
printf("unsigned short %lu\n", sizeof(unsigned short));
printf("unsigned int %lu\n", sizeof(unsigned int));
printf("unsigned long %lu\n", sizeof(unsigned long));
printf("unsigned long long %lu\n", sizeof(unsigned long long));
printf("char * %lu\n", sizeof(char *));
printf("short * %lu\n", sizeof(short *));
printf("int * %lu\n", sizeof(int *));
printf("long * %lu\n", sizeof(long *));
printf("long long * %lu\n", sizeof(long long *));
printf("double %lu\n", sizeof(double));
// printf("wint_t %lu\n", sizeof(wint_t));
// printf("wchar_T %lu\n", sizeof(wchar_t));
return (0);
}
/*
conversions : cspdiuxX%
flags : - 0 . *
conversions : nfge
@@ -121,80 +193,79 @@ conversions : nfge
% [flags 0,- ][width *][.precision *] [specifier d,i,u,x,X,c,s,p,% ]
% [flags #,', ,+] [length hh,h,ll,l ][specifier e,f,g,n ]
int flag: pw+ '#-0
00000000 00000000 00000000 00000001 == 1 '0'
00000000 00000000 00000000 00000010 == 2 '-'
00000000 00000000 00000000 00000100 == 4 '#'
00000000 00000000 00000000 00001000 == 8 '''
00000000 00000000 00000000 00010000 == 16 ' '
00000000 00000000 00000000 00100000 == 32 '+'
00000000 00000000 00000000 01000000 == 64 '*' width
00000000 00000000 00000000 10000000 == 128 '*' precision
p == long unsigned int
typedef struct s_prist
{
char *str;
int flag; // default 0 ; [0-#' +**] binary
int width; // default 0 ;
int prec; // default 0 ; precision
char *length; // default "\0" ;
char spec; // default 0 ; specifier
char *arg; // default "\0" ;
int p_nb; // default 0 ; print_nb : order in which to print (order it was found in string)
int a_nb; // default 0 ; arg_nb : number of the corresponding argument (for flag $)
struct s_prist *next;
} t_prist;
char 1bytes 8bits
short 2bytes 16bits
int 4bytes 32bits
long 8bytes 64bits
long long 8bytes 64bits
("2 1 3 4 3", 1, 2, 3, 4)
255 -127 - +127 00 [char] [hhd, hhi, c] [int] [d( , h, hh), i( , h, hh), c]
65535 -32768 - +32767 01 [short] [hd, hi] [int]
4294967295 -2147483648 - +2147483647 02 [int] [d, i] [int]
18446744073709551615 -9223372036854775808 - +9223372036854775807 04 [long] [ld, li] [long] [d(l ,ll), i(l, ll)]
18446744073709551615 -9223372036854775808 - +9223372036854775807 04 [long long] [lld, lli] [long]
256 0 - +255 05 [unsigned char] [hhu, hhx, hhX] [unsigned long] [u( , h, hh, l, ll), x( , h, hh, l, ll), X( , h, hh, l, ll), p]
65536 0 - +65536 06 [unsigned short] [hu, hx, hX] [unsigned long]
4294967296 0 - +4294967296 07 [unsigned int] [u, x, X, p] [unsigned long]
18446744073709551616 0 - +18446744073709551616 09 [unsigned long] [lu, lx, lX] [unsigned long]
18446744073709551616 0 - +18446744073709551616 09 [unsigned long long] [llu, llx, llX] [unsigned long]
18446744073709551616 0 - +18446744073709551616 10 [char *] [s, hhn] [char *] [s]
ft_error(int err)
ft_store("%i truc %-10d machin\n")
ft_split_print(str)
prist->str = "%i";
ft_fill_lst(prist)
prist->flag; // default = 0
prist->width; // default = 0
prist->prec; // default = 0
prist->length;
prist->spec;
prist->p_nb;
prist->a_nb; // if not $ == p_nb
prist->str = " truc ";
ft_fill_lst(prist)
... // if str start without % it means it can be printed as a string directly
prist->str = "%-10d";
ft_fill_lst...
prist->str = " machin\n";
ft_fill_lst...
return
{{str; flag; width; precision; length; specifier; p_nb 1; a_nb 2},
{str; flag; width; precision; length; specifier; p_nb 2; a_nb 1},
{str; flag; width; precision; length; specifier; p_nb 3; a_nb 3},
{str; flag; width; precision; length; specifier; p_nb 4; a_nb 4},
{str; flag; width; precision; length; specifier; p_nb 5; a_nb 3}}
18446744073709551616 0 - +18446744073709551616 16 [double] [e, le, f, lf, g, lg] []
18446744073709551616 0 - +18446744073709551616 17 [wint_t] [lc] []
18446744073709551616 0 - +18446744073709551616 18 [wchar_t] [ls] []
18446744073709551616 0 - +18446744073709551616 11 [short *] [hn] []
18446744073709551616 0 - +18446744073709551616 12 [int *] [n] []
18446744073709551616 0 - +18446744073709551616 13 [long *] [ln] []
18446744073709551616 0 - +18446744073709551616 14 [long long *] [lln] []
ft_sort_by_arg
{{str; flag; width; precision; length; specifier; p_nb 2; a_nb 1},
{str; flag; width; precision; length; specifier; p_nb 1; a_nb 2},
{str; flag; width; precision; length; specifier; p_nb 3; a_nb 3},
{str; flag; width; precision; length; specifier; p_nb 5; a_nb 3},
{str; flag; width; precision; length; specifier; p_nb 4; a_nb 4}}
d int 0 int
dhh char 1 char
dh short 2 short
dl long 3 long
dll long long 4 long long
ft_add_arg
if lst->str[o] != '\%' rerun without looking for argument
if lst->flag == * rerun for next argument but same list element
[fl][w][p] or or
%i ,1 -> '1' [] [0][0] [ ][0][0] [] [0][0]
%*i ,3,1 -> ' 1' [*] [0][0] [* ][0][0] [w] [0][0]
%.*i ,2,1 -> '01' [*] [0][0] [ *][0][0] [p] [0][0]
%*.*i ,3,2,1 -> ' 01' [**][0][0] [**][0][0] [wp][0][0]
%3.*i ,2,1 -> ' 01' [*] [3][0] [ *][3][0] [p] [3][0]
%*.2i ,3,1 -> ' 01' [*] [0][2] [* ][0][2] [w] [0][2]
%3.2i ,1 -> ' 01' [] [3][2] [ ][3][2] [] [3][2]
if lst->next->a_nb == lst->a_nb rerun for next list element but same argument
{{str; flag; width; precision; length; specifier; arg; p_nb 2; a_nb 1},
{str; flag; width; precision; length; specifier; arg; p_nb 1; a_nb 2},
{str; flag; width; precision; length; specifier; arg; p_nb 3; a_nb 3},
{str; flag; width; precision; length; specifier; arg; p_nb 5; a_nb 3},
{str; flag; width; precision; length; specifier; arg; p_nb 4; a_nb 4}}
i int
ihh char
ih short
il long
ill long long
u unsigned int 5 unsigned int
uhh unsigned char 6 unsigned char
uh unsigned short 7 unsigned short
ul unsigned long 8 unsigned long
ull unsigned long long 9 unsigned long long
x unsigned int
xhh unsigned char
xh unsigned short
xl unsigned long
xll unsigned long long
X unsigned int
Xhh unsigned char
Xh unsigned short
Xl unsigned long
Xll unsigned long long
c char -> int
cl wint_t 10 wint_t
s char * 11 char *
sl wchar_t * 12 wchar_t *
p unsigned int
e double 13 double
el
f double
fl
g double
gl
n int * 14 int *
nhh char *
nh short * 15 short *
nl long * 16 long *
nll long long * 17 long long *
*/

292
main.c
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@@ -94,7 +94,7 @@ int main(void)
printf("(\"%%i\",0x1E240) : "); printf("%i\n", 0x1E240); printf("\n");
printf("-----------------------------------------------\n");
printf("- flags : -,0,.,* -\n");
printf("- flags : -0.* -\n");
printf("- taille de champ minimale -\n");
printf("-----------------------------------------------\n\n");
@@ -118,6 +118,9 @@ int main(void)
// printf("(\"%%0i\",0) ft : "); ft_printf("'%0i'\n", 0);
printf("(\"%%0i\",0) : "); printf("'%0i'\n", 0); printf("\n");
// printf("(\"%%6i\",-456) ft : "); ft_printf("'%6i'\n", -456);
printf("(\"%%6i\",-456) : "); printf("'%6i'\n", -456); printf("\n");
printf("- flag - --------------------------------------\n\n");
// printf("(\"%%-3s\",\"a\") ft : "); ft_printf("'%-3s'\n", "a");
@@ -146,11 +149,37 @@ int main(void)
// printf("(\"%%03i\",1) ft : "); ft_printf("'%03i'\n", 1);
printf("(\"%%03i\",1) : "); printf("'%03i'\n", 1); printf("\n");
printf("- flag . --------------------------------------\n\n");
// printf("(\"%%09i\",\"123456\") ft : "); ft_printf("'%09s'\n", "123456");
// printf("(\"%%09i\",\"123456\") : "); printf("'%09s'\n", "123456"); printf("\n");
// printf("(\"%%03i\",1) ft : "); ft_printf("'%03i'\n", 1);
printf("(\"%%03i\",1) : "); printf("'%03i'\n", 1); printf("\n");
// printf("(\"%%03i\",1) ft : "); ft_printf("'%03i'\n", 1);
printf("(\"%%03i\",1) : "); printf("'%03i'\n", 1); printf("\n");
printf("- flag . (diouxXs) ----------------------------------------------------------\n");
printf("- if the . is not followed by a number, the value is 0\n");
printf("- with arg value of 0, precision of 0 print nothing\n");
printf("- with numbers (diouxX), gives the minimum number of digit to appear\n");
printf("- if precision > nbr, it's preceded by '0'\n");
printf("- if nbr < 0, '-' is not counted in precision\n");
printf("- (length with '-' is (length(nbr or precision) + 1)'\n");
printf("- if 0 flag is given (for width or precision) it's ignored\n");
printf("- with strings (s), gives the maximum number of characters to be print\n");
printf("- if precision > length(s), it's not preceded by '0'\n");
printf("- precision is calculated before width\n");
printf("\n");
// printf("(\"%%.5s\",\"12\") ft : "); ft_printf("'%.5s'\n", "12");
printf("(\"%%.5s\",\"12\") : "); printf("'%.5s'\n", "12"); printf("\n");
// printf("(\"%%.5s\",\"12345678\") ft : "); ft_printf("'%.5s'\n", "12345678");
printf("(\"%%.5s\",\"12345678\") : "); printf("'%.5s'\n", "12345678"); printf("\n");
// printf("(\"%%12.5s\",\"12345678\") ft : "); ft_printf("'%12.5s'\n", "12345678");
printf("(\"%%12.5s\",\"12345678\") : "); printf("'%12.5s'\n", "12345678"); printf("\n");
// printf("(\"%%.5i\",12) ft : "); ft_printf("'%.5i'\n", 12);
printf("(\"%%.5i\",12) : "); printf("'%.5i'\n", 12); printf("\n");
@@ -178,6 +207,9 @@ int main(void)
// printf("(\"%%.i\",0) ft : "); ft_printf("'%.i'\n", 0);
printf("(\"%%.i\",0) : "); printf("'%.i'\n", 0); printf("\n");
// printf("(\"%%i\",0) ft : "); ft_printf("'%i'\n", 0);
printf("(\"%%i\",0) : "); printf("'%i'\n", 0); printf("\n");
// printf("(\"%%010.7X\",8645) ft : "); ft_printf("'%010.7X'\n", 8645);
printf("(\"%%010.7X\",8645) : "); printf("'%010.7X'\n", 8645); printf("\n");
@@ -187,8 +219,14 @@ int main(void)
// printf("(\"%%-10.7X\",8645) ft : "); ft_printf("'%-10.7X'\n", 8645);
printf("(\"%%-10.7X\",8645) : "); printf("'%-10.7X'\n", 8645); printf("\n");
// printf("(\"%%-.7X\",8645) ft : "); ft_printf("'%-.7X'\n", 8645);
printf("(\"%%-.7X\",8645) : "); printf("'%-.7X'\n", 8645); printf("\n");
// printf("(\"%%-.7i\",8645) ft : "); ft_printf("'%-.7i'\n", 8645);
printf("(\"%%-.7i\",8645) : "); printf("'%-.7i'\n", 8645); printf("\n");
// printf("(\"%%.7i\",-8645) ft : "); ft_printf("'%.7i'\n", -8645);
printf("(\"%%.7i\",-8645) : "); printf("'%.7i'\n", -8645); printf("\n");
// printf("(\"%%.07i\",8645) ft : "); ft_printf("'%.07i'\n", 8645);
printf("(\"%%.07i\",8645) : "); printf("'%.07i'\n", 8645); printf("\n");
printf("- flag * --------------------------------------\n\n");
@@ -283,87 +321,165 @@ int main(void)
return (0);
}
// conversions : cspdiuxX%
// flags : -,0,.,*
// conversions : nfge
// flags : l,ll,h,hh,#,', ,+
//
// usage :
// %[arg_nbr$][flags #,0,-, ,+,'][width *][.precision *][length hh,h,ll,l,L,j,t,z][specifier d,i,u,x,X,c,s,p,%,e,f,g,n,E,F,G,a,A,C,S,o]
// % [flags 0,- ][width *][.precision *] [specifier d,i,u,x,X,c,s,p,% ]
// % [flags #,', ,+] [length hh,h,ll,l ][specifier e,f,g,n ]
//
// [arg_nbr]
//( nbr$ specify the argument to access, they are numbered starting at 1
//
// [flags] #,0,-, ,+,'
// - left-justify within the given field width
// 0 left-pads the number with zeroes (0) instead of spaces, where
// padding is specified (see width sub-specifier)
//( + forces to precede the result with a plus or minus sign even for
// positive numbers)
//( (space) if no sign is going to be written, a blank space is inserted
// before the value)
//( # (o, x, X, a, A, e, E, f, F, g, G) used with (o, x or X) the
// value is preceded with 0, 0x or 0X for values different than
// zero. used with (e, E or f), it forces the written output to
// contain a decimal point even if no digits would follow. by
// default, if no digits follow, no decimal point is written. used
// with (g or G) the result is the same as with e or E but trailing
// zeros are not removed
//( ' (d, u, i, f, F) used with d, u or i, or the integral portion of
// a float f or F, the decimal conversions are printed by groups of
// thousands separated by the non-monetary separator returned by
// localeconv(3) (ex 123456789 -> 123,456,789)
//
//
// [specifiers] d,i,u,x,X,c,s,p,%,e,f,g,n,E,F,G,a,A,C,S,o
// c char character
// s *char string of characters
// p * pointer adress
// d int (or i) signed decimal integer
// i int (or d) signed decimal integer
// u int unsigned decimal integer
// x int unsigned hexadecimal integer
// X int unsigned hexadecimal integer (capital letters)
//( n *int nothing printed
//( f float decimal floating point
//( e float scientific notation (mantissa/exponent) using e
//( g float uses the shorter of %e or %f
//((F float
//((E float scientific notation (mantissa/exponent) using E
//((G float uses the shorter of %E or %f
//((o int signed octal
//((C char treated as c with l modifier
//((a float
//((A float
//((S *char treated as s with l modifier
//
// [width]
// (nbr) minimum number of characters to be printed. if the value to be
// printed is shorter than this number, the result is padded with
// blank spaces. The value is not truncated even if the result is
// larger
// * the width is not specified in the format string, but as an
// additional integer value argument preceding the argument that
// has to be formatted
//
// [.precision]
// .nbr fot integer specifiers (d,i,o,x,X) - precision specifies the
// minimum number of digits to be written. If the value to be
// written is shorter than this number, the result is padded with
// leading zeros. The value is not truncated even if the result is
// longer. A precision of 0 means that no character is written for
// the value 0. For e, E and f specifiers − this is the number of
// digits to be printed after the decimal point. For g and G
// specifiers − This is the maximum number of significant digits
// to be printed. For s − this is the maximum number of characters
// to be printed. By default all characters are printed until the
// ending null character is encountered. For c type − it has no
// effect. When no precision is specified, the default is 1. If the
// period is specified without an explicit value for precision, 0
// is assumed
// .* the precision is not specified in the format string, but as an
// additional integer value argument preceding the argument that
// has to be formated
//
/*
int flag: pw+ '#-0
00000000 00000000 00000000 00000001 == 1 '0'
00000000 00000000 00000000 00000010 == 2 '-'
00000000 00000000 00000000 00000100 == 4 '#'
00000000 00000000 00000000 00001000 == 8 '''
00000000 00000000 00000000 00010000 == 16 ' '
00000000 00000000 00000000 00100000 == 32 '+'
00000000 00000000 00000000 01000000 == 64 '*' width
00000000 00000000 00000000 10000000 == 128 '*' precision
typedef struct s_prist
{
char *str;
int flag; // default 0 ; [0-#' +**] binary
int width; // default 0 ;
int prec; // default 0 ; precision
char *length; // default "\0" ;
char spec; // default 0 ; specifier
char *arg; // default "\0" ;
int p_nb; // default 0 ; print_nb : order in which to print (order it was found in string)
int a_nb; // default 0 ; arg_nb : number of the corresponding argument (for flag $)
struct s_prist *next;
} t_prist;
("2 1 3 4 3", 1, 2, 3, 4)
ft_error(int err)
ft_store("%i truc %-10d machin\n")
ft_split_print(str)
prist->str = "%i";
ft_fill_lst(prist)
prist->flag; // default = 0
prist->width; // default = 0
prist->prec; // default = 0
prist->length;
prist->spec;
prist->p_nb;
prist->a_nb; // if not $ == p_nb
prist->str = " truc ";
ft_fill_lst(prist)
... // if str start without % it means it can be printed as a string directly
prist->str = "%-10d";
ft_fill_lst...
prist->str = " machin\n";
ft_fill_lst...
return
{{str; flag; width; precision; length; specifier; p_nb 1; a_nb 2},
{str; flag; width; precision; length; specifier; p_nb 2; a_nb 1},
{str; flag; width; precision; length; specifier; p_nb 3; a_nb 3},
{str; flag; width; precision; length; specifier; p_nb 4; a_nb 4},
{str; flag; width; precision; length; specifier; p_nb 5; a_nb 3}}
ft_sort_by_arg
{{str; flag; width; precision; length; specifier; p_nb 2; a_nb 1},
{str; flag; width; precision; length; specifier; p_nb 1; a_nb 2},
{str; flag; width; precision; length; specifier; p_nb 3; a_nb 3},
{str; flag; width; precision; length; specifier; p_nb 5; a_nb 3},
{str; flag; width; precision; length; specifier; p_nb 4; a_nb 4}}
ft_add_arg
if lst->str[o] != '\%' rerun without looking for argument
if lst->flag == * rerun for next argument but same list element
[fl][w][p] or or
%i ,1 -> '1' [] [0][0] [ ][0][0] [] [0][0]
%*i ,3,1 -> ' 1' [*] [0][0] [* ][0][0] [w] [0][0]
%.*i ,2,1 -> '01' [*] [0][0] [ *][0][0] [p] [0][0]
%*.*i ,3,2,1 -> ' 01' [**][0][0] [**][0][0] [wp][0][0]
%3.*i ,2,1 -> ' 01' [*] [3][0] [ *][3][0] [p] [3][0]
%*.2i ,3,1 -> ' 01' [*] [0][2] [* ][0][2] [w] [0][2]
%3.2i ,1 -> ' 01' [] [3][2] [ ][3][2] [] [3][2]
if lst->next->a_nb == lst->a_nb rerun for next list element but same argument
{{str; flag; width; precision; length; specifier; arg; p_nb 2; a_nb 1},
{str; flag; width; precision; length; specifier; arg; p_nb 1; a_nb 2},
{str; flag; width; precision; length; specifier; arg; p_nb 3; a_nb 3},
{str; flag; width; precision; length; specifier; arg; p_nb 5; a_nb 3},
{str; flag; width; precision; length; specifier; arg; p_nb 4; a_nb 4}}
conversions : cspdiuxX%
flags : -,0,.,*
conversions : nfge
flags : l,ll,h,hh,#,', ,+
usage :
printf %[arg_nbr$][flags #,0,-, ,+,'][width *][.precision *][length hh,h,ll,l,L,j,t,z][specifier d,i,u,x,X,c,s,p,%,e,f,g,n,E,F,G,a,A,C,S,o]
ft_printf % [flags 0,- ][width *][.precision *] [specifier d,i,u,x,X,c,s,p,% ]
bonus % [flags #,', ,+] [length hh,h,ll,l ][specifier e,f,g,n ]
[arg_nbr]
( nbr$ specify the argument to access, they are numbered starting at 1
[flags] #,0,-, ,+,'
- left-justify within the given field width
0 left-pads the number with zeroes (0) instead of spaces, where
padding is specified (see width sub-specifier)
( + forces to precede the result with a plus or minus sign even for
positive numbers)
( (space) if no sign is going to be written, a blank space is inserted
before the value)
( # (o, x, X, a, A, e, E, f, F, g, G) used with (o, x or X) the
value is preceded with 0, 0x or 0X for values different than
zero. used with (e, E or f), it forces the written output to
contain a decimal point even if no digits would follow. by
default, if no digits follow, no decimal point is written. used
with (g or G) the result is the same as with e or E but trailing
zeros are not removed
( ' (d, u, i, f, F) used with d, u or i, or the integral portion of
a float f or F, the decimal conversions are printed by groups of
thousands separated by the non-monetary separator returned by
localeconv(3) (ex 123456789 -> 123,456,789)
[specifiers] d,i,u,x,X,c,s,p,%,e,f,g,n,E,F,G,a,A,C,S,o
c char character
s *char string of characters
p * pointer adress
d int (or i) signed decimal integer
i int (or d) signed decimal integer
u int unsigned decimal integer
x int unsigned hexadecimal integer
X int unsigned hexadecimal integer (capital letters)
( n *int nothing printed
( f float decimal floating point
( e float scientific notation (mantissa/exponent) using e
( g float uses the shorter of %e or %f
((F float
((E float scientific notation (mantissa/exponent) using E
((G float uses the shorter of %E or %f
((o int signed octal
((C char treated as c with l modifier
((a float
((A float
((S *char treated as s with l modifier
[width]
(nbr) minimum number of characters to be printed. if the value to be
printed is shorter than this number, the result is padded with
blank spaces. The value is not truncated even if the result is
larger
* the width is not specified in the format string, but as an
additional integer value argument preceding the argument that
has to be formatted
[.precision]
.nbr fot integer specifiers (d,i,o,x,X) - precision specifies the
minimum number of digits to be written. If the value to be
written is shorter than this number, the result is padded with
leading zeros. The value is not truncated even if the result is
longer. A precision of 0 means that no character is written for
the value 0. For e, E and f specifiers − this is the number of
digits to be printed after the decimal point. For g and G
specifiers − This is the maximum number of significant digits
to be printed. For s − this is the maximum number of characters
to be printed. By default all characters are printed until the
ending null character is encountered. For c type − it has no
effect. When no precision is specified, the default is 1. If the
period is specified without an explicit value for precision, 0
is assumed
.* the precision is not specified in the format string, but as an
additional integer value argument preceding the argument that
has to be formated
*/