350 lines
14 KiB
C
350 lines
14 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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int ft_printf(char *fmt, ...)
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{
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va_list ap;
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int d;
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char c, *s;
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va_start(ap, fmt);
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while (*fmt)
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switch(*fmt++) {
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case 's': /* string */
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s = va_arg(ap, char *);
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printf("string %s\n", s);
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break;
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case 'd': /* int */
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d = va_arg(ap, int);
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printf("int %d\n", d);
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break;
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case 'c': /* char */
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/* Note: char is promoted to int. */
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c = va_arg(ap, int);
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printf("char %c\n", c);
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break;
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}
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va_end(ap);
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return (0);
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}
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int main(void)
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{
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char *s;
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char *str;
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char c;
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int i;
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s = "scd";
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str = "bravo";
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c = 'c';
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i = 6;
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ft_printf(s, str, c, i);
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printf("\n");
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printf("-----------------------------------------------\n");
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printf("- BASICS -\n");
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printf("- -\n");
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printf("- %%[flag][width][.precision][length]specifier -\n");
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printf("- -\n");
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printf("- conversions : cspdiuxX%% -\n");
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printf("- flags : -0.* -\n");
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printf("- taille de champ minimale -\n");
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printf("- -\n");
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printf("- char *str = \"bravo\"; -\n");
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printf("- char c = 'c'; -\n");
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printf("- int i = 6; -\n");
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printf("-----------------------------------------------\n");
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printf("-----------------------------------------------\n");
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printf("- conversions : cspdiuxX%% -\n");
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printf("-----------------------------------------------\n\n");
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// printf("(\"no newline\") ft : "); ft_printf("no newline"); printf("-->ligne suivante\n");
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printf("(\"no newline\") : "); printf("no newline"); printf("-->ligne suivante\n"); printf("\n");
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// printf("(\"newline\\n\") ft : "); ft_printf("newline\n"); printf("-->ligne suivante\n");
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printf("(\"newline\\n\") : "); printf("newline\n"); printf("-->ligne suivante\n"); printf("\n");
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// printf("(\"%%%%\") ft : "); ft_printf("%%\n");
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printf("(\"%%%%\") : "); printf("%%\n"); printf("\n");
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// printf("(\"\\\"\") ft : "); ft_printf("\"\n");
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printf("(\"\\\"\") : "); printf("\"\n"); printf("\n");
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// printf("(\"%%c\",'c') ft : "); ft_printf("%c\n", 'c');
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printf("(\"%%c\",'c') : "); printf("%c\n", 'c'); printf("\n");
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// printf("(\"%%s\",\"str\") ft : "); ft_printf("%s\n", "str");
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printf("(\"%%s\",\"str\") : "); printf("%s\n", "str"); printf("\n");
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// printf("(\"%%s\",str) ft : "); ft_printf("%s\n", str);
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printf("(\"%%s\",str) : "); printf("%s\n", str); printf("\n");
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// printf("(\"%%p\",str) ft : "); ft_printf("%p\n", str);
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printf("(\"%%p\",str) : "); printf("%p\n", str); printf("\n");
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// printf("(\"%%d\",456) ft : "); ft_printf("%d\n", 456);
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printf("(\"%%d\",456) : "); printf("%d\n", 456); printf("\n");
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// printf("(\"%%i\",846) ft : "); ft_printf("%i\n", 846);
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printf("(\"%%i\",846) : "); printf("%i\n", 846); printf("\n");
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// printf("(\"%%u\",87) ft : "); ft_printf("%u\n", 87);
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printf("(\"%%u\",87) : "); printf("%u\n", 87); printf("\n");
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// printf("(\"%%u\",-87) ft : "); ft_printf("%u\n", -87);
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printf("(\"%%u\",-87) : "); printf("%u\n", -87); printf("\n");
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// printf("(\"%%x\",124) ft : "); ft_printf("%x\n", 124);
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printf("(\"%%x\",124) : "); printf("%x\n", 124); printf("\n");
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// printf("(\"%%X\",124) ft : "); ft_printf("%X\n", 124);
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printf("(\"%%X\",124) : "); printf("%X\n", 124); printf("\n");
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// printf("(\"%%X\",123456) ft : "); ft_printf("%X\n", 123456);
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printf("(\"%%X\",123456) : "); printf("%X\n", 123456); printf("\n");
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// printf("(\"%%X\",0x1E240) ft : "); ft_printf("%X\n", 0x1E240);
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printf("(\"%%X\",0x1E240) : "); printf("%X\n", 0x1E240); printf("\n");
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// printf("(\"%%i\",0x1E240) ft : "); ft_printf("%i\n", 0x1E240);
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printf("(\"%%i\",0x1E240) : "); printf("%i\n", 0x1E240); printf("\n");
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printf("-----------------------------------------------\n");
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printf("- flags : -0.* -\n");
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printf("- taille de champ minimale -\n");
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printf("-----------------------------------------------\n\n");
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printf("- taille de champ minimale --------------------\n\n");
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// printf("(\"%%3s\",\"a\") ft : "); ft_printf("'%3s'\n", "a");
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printf("(\"%%3s\",\"a\") : "); printf("'%3s'\n", "a"); printf("\n");
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// printf("(\"%%3s\",\"abcd\") ft : "); ft_printf("'%3s'\n", "abcd");
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printf("(\"%%3s\",\"abcd\") : "); printf("'%3s'\n", "abcd"); printf("\n");
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// printf("(\"%%3i\",12) ft : "); ft_printf("'%3i'\n", 12);
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printf("(\"%%3i\",12) : "); printf("'%3i'\n", 12); printf("\n");
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// printf("(\"%%2i\",12) ft : "); ft_printf("'%2i'\n", 12);
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printf("(\"%%2i\",12) : "); printf("'%2i'\n", 12); printf("\n");
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// printf("(\"%%1i\",12) ft : "); ft_printf("'%1i'\n", 12);
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printf("(\"%%1i\",12) : "); printf("'%1i'\n", 12); printf("\n");
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// printf("(\"%%0i\",0) ft : "); ft_printf("'%0i'\n", 0);
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printf("(\"%%0i\",0) : "); printf("'%0i'\n", 0); printf("\n");
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printf("- flag - --------------------------------------\n\n");
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// printf("(\"%%-3s\",\"a\") ft : "); ft_printf("'%-3s'\n", "a");
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printf("(\"%%-3s\",\"a\") : "); printf("'%-3s'\n", "a"); printf("\n");
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// printf("(\"%%-9s\",\"a\") ft : "); ft_printf("'%-9s'\n", "a");
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printf("(\"%%-9s\",\"a\") : "); printf("'%-9s'\n", "a"); printf("\n");
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// printf("(\"%%-1s\",\"ab\") ft : "); ft_printf("'%-1s'\n", "ab");
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printf("(\"%%-1s\",\"ab\") : "); printf("'%-1s'\n", "ab"); printf("\n");
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// printf("(\"%%-2s\",\"ab\") ft : "); ft_printf("'%-2s'\n", "ab");
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printf("(\"%%-2s\",\"ab\") : "); printf("'%-2s'\n", "ab"); printf("\n");
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// printf("(\"%%-3s\",\"ab\") ft : "); ft_printf("'%-3s'\n", "ab");
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printf("(\"%%-3s\",\"ab\") : "); printf("'%-3s'\n", "ab"); printf("\n");
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// printf("(\"%%-3i\",3) ft : "); ft_printf("'%-3i'\n", 3);
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printf("(\"%%-3i\",3) : "); printf("'%-3i'\n", 3); printf("\n");
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// printf("(\"%%-3i\",123456) ft : "); ft_printf("'%-3i'\n", 123456);
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printf("(\"%%-3i\",123456) : "); printf("'%-3i'\n", 123456); printf("\n");
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printf("- flag 0 --------------------------------------\n\n");
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// printf("(\"%%03i\",1) ft : "); ft_printf("'%03i'\n", 1);
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printf("(\"%%03i\",1) : "); printf("'%03i'\n", 1); printf("\n");
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printf("- flag * --------------------------------------\n\n");
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// printf("(\"%%*i\",3,1) ft : "); ft_printf("'%*i'\n", 3, 1);
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printf("(\"%%*i\",3,1) : "); printf("'%*i'\n", 3, 1); printf("\n");
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// printf("(\"%%-*i\",3,1) ft : "); ft_printf("'%-*i'\n", 3, 1);
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printf("(\"%%-*i\",3,1) : "); printf("'%-*i'\n", 3, 1); printf("\n");
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printf("- flag . --------------------------------------\n\n");
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// printf("(\"%%.5s\",\"12\") ft : "); ft_printf("'%.5s'\n", "12");
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printf("(\"%%.5s\",\"12\") : "); printf("'%.5s'\n", "12"); printf("\n");
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// printf("(\"%%.5i\",12) ft : "); ft_printf("'%.5i'\n", 12);
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printf("(\"%%.5i\",12) : "); printf("'%.5i'\n", 12); printf("\n");
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// printf("(\"%%.7X\",8645) ft : "); ft_printf("'%.7X'\n", 8645);
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printf("(\"%%.7X\",8645) : "); printf("'%.7X'\n", 8645); printf("\n");
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// printf("(\"%%7.7X\",8645) ft : "); ft_printf("'%7.7X'\n", 8645);
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printf("(\"%%7.7X\",8645) : "); printf("'%7.7X'\n", 8645); printf("\n");
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// printf("(\"%%10.7X\",8645) ft : "); ft_printf("'%10.7X'\n", 8645);
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printf("(\"%%10.7X\",8645) : "); printf("'%10.7X'\n", 8645); printf("\n");
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// printf("(\"%%7.10X\",8645) ft : "); ft_printf("'%7.10X'\n", 8645);
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printf("(\"%%7.10X\",8645) : "); printf("'%7.10X'\n", 8645); printf("\n");
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// printf("(\"%%.0i\",0) ft : "); ft_printf("'%.0i'\n", 0);
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printf("(\"%%.0i\",0) : "); printf("'%.0i'\n", 0); printf("\n");
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// printf("(\"%%.0X\",0) ft : "); ft_printf("'%.0X'\n", 0);
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printf("(\"%%.0X\",0) : "); printf("'%.0X'\n", 0); printf("\n");
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printf("-----------------------------------------------\n");
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printf("- errors -\n");
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printf("-----------------------------------------------\n\n");
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// printf("(\"%%i\",3,2) ft : "); ft_printf("'%i'", 3, 2);
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// printf("(\"%%i\",3,2) : "); printf("'%i'", 3, 2); printf(" [ERROR]\n\n");
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// printf("(\"%%i-%%i\",3) ft : "); ft_printf("'%i-%i'", 3);
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// printf("(\"%%i-%%i\",3) : "); printf("'%i-%i'", 3); printf(" [ERROR]\n\n");
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// printf("(\"%%-03i\",1) ft : "); ft_printf("'%-03i'\n", 1);
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// printf("(\"%%-03i\",1) : "); printf("'%-03i'\n", 1); printf("\n");
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// printf("(\"%%010s\",str) ft : "); ft_printf("'%010s'\n", str);
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// printf("(\"%%010s\",str) : "); printf("'%010s'\n", str); printf("\n");
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// printf("(\"%%-010s\",str) ft : "); ft_printf("'%-010s'\n", str);
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// printf("(\"%%-010s\",str) : "); printf("'%-010s'\n", str); printf("\n");
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// printf("(\"%%X\",124) ft : "); ft_printf("%X\n", 124);
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// printf("(\"%%X\",1E240) : "); printf("%X\n", 1E240); printf("\n");
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// printf("(\"%%010.7X\",8645) : "); printf("'%010.7X'\n", 8645); printf("\n");
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printf("-----------------------------------------------\n");
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printf("- BONUS -\n");
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printf("- conversions : nfge -\n");
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printf("- flags : l ll h hh # ' + -\n");
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printf("-----------------------------------------------\n\n");
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// printf("(\"%%#X\",8645) : ");
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// printf("'%#X' \n", 8645);
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//
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// printf("(\"%%#.7X\",8645) : ");
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// printf("'%#.7X' \n", 8645);
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//
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// printf("(\"%%#010.7X\",8645) : ");
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// printf("'%#010.7X' \n", 8645);
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//
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// printf("(\"%%#10.7X\",8645) : ");
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// printf("'%#10.7X' \n", 8645);
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//
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// printf("(\"%%#10X\",8645) : ");
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// printf("'%#10X' \n", 8645);
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//
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// printf("(\"%%#.10X\",8645) : ");
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// printf("'%#.10X' \n", 8645);
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//
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// printf("(\"%%#10.10X\",8645) : ");
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// printf("'%#10.10X' \n", 8645);
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//
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// printf("(\"%%#010X\",8645) : ");
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// printf("'%#010X' \n", 8645);
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// printf("-----------------------------------------------\n");
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// printf("- ADD -\n");
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// printf("- flags : $ -\n");
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// printf("-----------------------------------------------\n\n");
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// printf("(\"%%1$*2$i\",3,2) ft : "); ft_printf("'%1$*2$i'\n", 3, 2);
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// printf("(\"%%1$*2$i\",3,2) : "); printf("'%1$*2$i'\n", 3, 2); printf("\n");
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// printf("(\"%%2$*1$i\",3,2) ft : "); ft_printf("'%2$*1$i'\n", 3, 2);
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// printf("(\"%%2$*1$i\",3,2) : "); printf("'%2$*1$i'\n", 3, 2); printf("\n");
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return (0);
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}
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// conversions : cspdiuxX%%
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// flags : -0.*
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// conversions : nfge
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// flags : l ll h hh # ' +
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//
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// usage :
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// %[arg_nbr$][flags][][width][.precision][length]specifier
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//
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// [arg_nbr]
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//( nbr$ specify the argument to access, they are numbered starting at 1
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//
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// [flags]
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// - left-justify within the given field width
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// 0 left-pads the number with zeroes (0) instead of spaces, where
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// padding is specified (see width sub-specifier)
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//( + forces to precede the result with a plus or minus sign even for
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// positive numbers)
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//( (space) if no sign is going to be written, a blank space is inserted
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// before the value)
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//( # (o, x, X, a, A, e, E, f, F, g, G) used with (o, x or X) the
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// value is preceded with 0, 0x or 0X for values different than
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// zero. used with (e, E or f), it forces the written output to
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// contain a decimal point even if no digits would follow. by
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// default, if no digits follow, no decimal point is written. used
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// with (g or G) the result is the same as with e or E but trailing
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// zeros are not removed
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//( ' (d, u, i, f, F) used with d, u or i, or the integral portion of
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// a float f or F, the decimal conversions are printed by groups of
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// thousands separated by the non-monetary separator returned by
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// localeconv(3) (ex 123456789 -> 123,456,789)
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//
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//
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// [specifiers]
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// c char character
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// s *char string of characters
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// p * pointer adress
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// d int (or i) signed decimal integer
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// i int (or d) signed decimal integer
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// u int unsigned decimal integer
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// x int unsigned hexadecimal integer
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// X int unsigned hexadecimal integer (capital letters)
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//( n *int nothing printed
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//( f float decimal floating point
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//( e float scientific notation (mantissa/exponent) using e
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//( g float uses the shorter of %e or %f
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//((E float scientific notation (mantissa/exponent) using E
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//((G float uses the shorter of %E or %f
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//((o int signed octal
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//((C char wide character
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//((a float
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//((S *char string of wide characters
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//
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// [width]
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// (nbr) minimum number of characters to be printed. if the value to be
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// printed is shorter than this number, the result is padded with
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// blank spaces. The value is not truncated even if the result is
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// larger
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// * the width is not specified in the format string, but as an
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// additional integer value argument preceding the argument that
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// has to be formatted
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//
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// [.precision]
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// .nbr fot integer specifiers (d,i,o,x,X) - precision specifies the
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// minimum number of digits to be written. If the value to be
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// written is shorter than this number, the result is padded with
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// leading zeros. The value is not truncated even if the result is
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// longer. A precision of 0 means that no character is written for
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// the value 0. For e, E and f specifiers − this is the number of
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// digits to be printed after the decimal point. For g and G
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// specifiers − This is the maximum number of significant digits
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// to be printed. For s − this is the maximum number of characters
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// to be printed. By default all characters are printed until the
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// ending null character is encountered. For c type − it has no
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// effect. When no precision is specified, the default is 1. If the
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// period is specified without an explicit value for precision, 0
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// is assumed
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// .* the precision is not specified in the format string, but as an
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// additional integer value argument preceding the argument that
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// has to be formated
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//
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