42/42_INT_03_ft_printf
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This commit is contained in:
Hugo LAMY
2020-02-20 19:06:16 +01:00
parent 4e56af0f8a
commit 5369c77126
7 changed files with 925 additions and 992 deletions
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278
ft_printf.c
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@@ -102,281 +102,3 @@ char *ft_flag_transform(char *s, char *print)
// print = ft_alternate_form(print) //
}
*/
int ft_printf_test(char *string, ...)
{
va_list ap;
va_start(ap, string);
printf("%s", string);
while (*string != '\0')
{
printf(" : ");
if (*string == 'd')
printf("%d", (int)va_arg(ap, long int));
if (*string == 'i')
printf("%i", (int)va_arg(ap, long int));
if (*string == 'u')
printf("%u", (unsigned int)va_arg(ap, int));
if (*string == 'x')
printf("%x", (unsigned int)va_arg(ap, long int));
if (*string == 'X')
printf("%X", (unsigned int)va_arg(ap, long int));
if (*string == 'c')
printf("%c", (char)va_arg(ap, long int)); // var_arg promote char into int
if (*string == 's')
printf("%s", (char *)va_arg(ap, long int));
if (*string == 'e')
printf("%e", va_arg(ap, double)); // va_arg promote float into double
if (*string == 'f')
printf("%f", va_arg(ap, double)); // va_arg promote float into double
if (*string == 'g')
printf("%g", va_arg(ap, double)); // va_arg promote float into double
if (*string == 'I')
printf("%li", (long int)va_arg(ap, long int));
if (*string == 'U')
printf("%lu", (unsigned long int)va_arg(ap, long int));
string++;
}
printf("\n");
va_end(ap);
return (0);
}
int main(int ac, char **av)
{
char *str = "diuxXcsefg";
int d = 123;
int i = 456;
unsigned int u = 345;
unsigned int x = 456;
unsigned int X = 567;
char c = 'c';
char* s = "string";
// p = ;
float e = 678;
float f = 789;
float g = 890;
// n = ;
char *str2 = "iiIIuU";
int i1 = 2147483647;
int i2 = -2147483648;
long int i3 = 9223372036854775807;
long int i4 = -9223372036854775807;
unsigned int i5 = 4294967295;
// long unsigned int i6 = 18446744073709551615;
long unsigned int i6 = 8446744073709551615;
if (ac == 1)
{
// printf("%s : %d : %i : %u : %x : %X : %c : %s : %e : %f : %g\n", str, d, i, u, x, X, c, s, e, f, g);
// ft_printf_test(str, d, i, u, x, X, c, s, e, f, g);
// printf("%s : %i : %i : %li : %li : %u : %lu\n", str2, i1, i2, i3, i4, i5, i6);
// ft_printf_test(str2, i1, i2, i3, i4, i5, i6);
printf("sdf\n");
ft_printf("sdf\n\n");
printf("%i\n", 23);
ft_printf("%i\n\n", 23);
long int k = -23;
printf("%li\n", k);
ft_printf("%li\n\n", k);
printf("%i\n", -32);
ft_printf("%i\n\n", -32);
printf("%li\n", 9223372036854775807);
ft_printf("%li\n\n", 9223372036854775807);
printf("%c\n", 'f');
ft_printf("%c\n\n", 'f');
printf("%s\n", "sdffhk");
ft_printf("%s\n\n", "sdffhk");
printf("%u\n", 1221879);
ft_printf("%u\n\n", 1221879);
printf("%x\n", 3287);
ft_printf("%x\n\n", 3287);
printf("%lX\n", 9223372036854775807);
ft_printf("%lX\n\n", 9223372036854775807);
printf("%p\n", "dfgdf");
ft_printf("%p\n\n", "dfgdf");
}
return (0);
}
/*
conversions : cspdiuxX%
flags : - 0 . *
conversions : nfge
flags : l ll h hh # ' (space) +
%[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 ]
[flags]
- 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)
[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
[specifiers]
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 u int unsigned decimal integer
x u int unsigned hexadecimal integer
X u 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
p == long unsigned int
char 1bytes 8bits
short 2bytes 16bits
int 4bytes 32bits
long 8bytes 64bits
long long 8bytes 64bits
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 int] [u( , h, hh), x( , h, hh), X( , h, hh), p]
65536 0 - +65536 06 [unsigned short] [hu, hx, hX] [unsigned int]
4294967296 0 - +4294967296 07 [unsigned int] [u, x, X, p] [unsigned int]
18446744073709551616 0 - +18446744073709551616 09 [unsigned long] [lu, lx, lX] [unsigned long] [s, u(l, ll), x(l, ll), X(l, ll)]
18446744073709551616 0 - +18446744073709551616 09 [unsigned long long] [llu, llx, llX] [unsigned long]
18446744073709551616 0 - +18446744073709551616 10 [char *] [s, hhn] [unsigned long]
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] []
d int 0 int
dhh char 1 char
dh short 2 short
dl long 3 long
dll long long 4 long long
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 *
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));
*/