#include #include int ft_printf(char *fmt, ...) { va_list ap; int d; char c, *s; va_start(ap, fmt); while (*fmt) switch(*fmt++) { case 's': /* string */ s = va_arg(ap, char *); printf("string %s\n", s); break; case 'd': /* int */ d = va_arg(ap, int); printf("int %d\n", d); break; case 'c': /* char */ /* Note: char is promoted to int. */ c = va_arg(ap, int); printf("char %c\n", c); break; } va_end(ap); return (0); } int main(void) { char *s; char *str; char c; int i; s = "scd"; str = "bravo"; c = 'c'; i = 6; ft_printf(s, str, c, i); printf("\n"); printf("-----------------------------------------------\n"); printf("- BASICS -\n"); printf("- -\n"); printf("- %%[flag][width][.precision][length]specifier -\n"); printf("- -\n"); printf("- conversions : cspdiuxX%% -\n"); printf("- flags : -0.* -\n"); printf("- taille de champ minimale -\n"); printf("- -\n"); printf("- char *str = \"bravo\"; -\n"); printf("- char c = 'c'; -\n"); printf("- int i = 6; -\n"); printf("-----------------------------------------------\n"); printf("-----------------------------------------------\n"); printf("- conversions : cspdiuxX%% -\n"); printf("-----------------------------------------------\n\n"); printf("(\"no newline\") ft : "); printf("no newline"); printf("-->ligne suivante\n"); printf("\n"); printf("(\"newline\\n\") ft : "); printf("newline\n"); printf("-->ligne suivante\n"); printf("\n"); printf("(\"%%%%\") ft : "); printf("%%\n"); printf("\n"); printf("(\"\\\"\") ft : "); printf("\"\n"); printf("\n"); printf("(\"%%c\",'c') ft : "); printf("%c\n", 'c'); printf("\n"); printf("(\"%%s\",\"str\") ft : "); printf("%s\n", "str"); printf("\n"); printf("(\"%%s\",str) ft : "); printf("%s\n", str); printf("\n"); printf("(\"%%p\",str) ft : "); printf("%p\n", str); printf("\n"); printf("(\"%%d\",456) ft : "); printf("%d\n", 456); printf("\n"); printf("(\"%%i\",846) ft : "); printf("%i\n", 846); printf("\n"); printf("(\"%%u\",87) ft : "); printf("%u\n", 87); printf("\n"); printf("(\"%%u\",-87) ft : "); printf("%u\n", -87); printf("\n"); printf("(\"%%x\",78) ft : "); printf("%x\n", 78); printf("\n"); printf("(\"%%X\",78) ft : "); printf("%X\n", 78); printf("\n"); printf("-----------------------------------------------\n"); printf("- flags : -0.* -\n"); printf("-----------------------------------------------\n\n"); // printf("(\"%%3s\",\"a\") ft : "); ft_printf("'%3s'\n", "a"); printf("(\"%%3s\",\"a\") : "); printf("'%3s'\n", "a"); printf("\n"); // printf("(\"%%-3s\",\"a\") ft : "); ft_printf("'%-3s'\n]", "a"); printf("(\"%%-3s\",\"a\") : "); printf("'%-3s'\n ", "a"); printf("\n"); // printf("(\"%%-9s\",\"a\") ft : "); ft_printf("'%-9s'\n]", "a"); printf("(\"%%-9s\",\"a\") : "); printf("'%-9s'\n ", "a"); printf("\n"); // printf("(\"%%-1s\",\"ab\") ft : "); ft_printf("'%-1s'\n]", "ab"); printf("(\"%%-1s\",\"ab\") : "); printf("'%-1s'\n ", "ab"); printf("\n"); // printf("(\"%%-2s\",\"ab\") ft : "); ft_printf("'%-2s'\n]", "ab"); printf("(\"%%-2s\",\"ab\") : "); printf("'%-2s'\n ", "ab"); printf("\n"); // printf("(\"%%-3s\",\"ab\") ft : "); ft_printf("'%-3s'\n]", "ab"); printf("(\"%%-3s\",\"ab\") : "); printf("'%-3s'\n ", "ab"); printf("\n"); // printf("(\"%%-3i\",3) ft : "); ft_printf("'%-3i'\n", 3);printf(""); printf("(\"%%-3i\",3) : "); printf("'%-3i'\n", 3); printf("\n"); // printf("(\"%%-3i\",123456) ft : "); ft_printf("'%-3i'\n", 123456); printf("(\"%%-3i\",123456) : "); printf("'%-3i'\n", 123456); printf("\n"); // printf("(\"%%03i\",1) ft : "); ft_printf("'%03i'\n", 1); printf("(\"%%03i\",1) : "); printf("'%03i'\n", 1); printf("\n"); // printf("(\"%%*i\",3,1) ft : "); ft_printf("'%*i'\n", 3, 1); printf("(\"%%*i\",3,1) : "); printf("'%*i'\n", 3, 1); printf("\n"); // printf("(\"%%-*i\",3,1) ft : "); ft_printf("'%-*i'\n", 3, 1);printf(""); printf("(\"%%-*i\",3,1) : "); printf("'%-*i'\n", 2, 1); printf("\n"); printf("-----------------------------------------------\n"); printf("- BONUS -\n"); printf("- conversions : nfge -\n"); printf("- flags : l ll h hh # ' + -\n"); printf("-----------------------------------------------\n\n"); // printf("\nBONUS:\n"); // // ft_printf("%n\n", ); // printf("%n\n"); // // ft_printf("%f\n", ); // printf("%f\n", ); // // ft_printf("%g\n", ); // printf("%g\n", ); // // ft_printf("%e\n", ); // printf("%e\n", ); // // printf("\nADD:\n"); // // ft_printf("%E\n", ); // printf("%E\n", ); // // ft_printf("%G\n", ); // printf("%G\n", ); // // ft_printf("%o\n", ); // printf("%o\n", ); return (0); } // usage : // %[flags][width][.precision][length]specifier // // [specifiers] // c character // s string of characters // p pointer adress // d (or i) signed decimal integer // i (or d) signed decimal integer // u unsigned decimal integer // x unsigned hexadecimal integer // X unsigned hexadecimal integer (capital letters) //( n nothing printed //( f decimal floating point //( g uses the shorter of %e or %f //( e scientific notation (mantissa/exponent) using e //((E scientific notation (mantissa/exponent) using E //((G uses the shorter of %E or %f //((o signed octal // // [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) //( # used with o, x or X specifiers the value is preceded with 0, 0x // or 0X respectively for values different than zero. Used with e, // E and 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 reult is the // same as with e or E but trailing zeros are not removed) // // [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 //