25 static char *write_num(char *str, ul num, int base, int field_width, int precision, int flags);
27 static char *write_float_point_num(char *str, double num, int field_width, int precision, int flags…
64     int flags;       // 用来存储格式信息的bitmap  in __do_vsprintf()  local
88         field_width = flags = 0;  in __do_vsprintf()
106                 flags |= LEFT;  in __do_vsprintf()
111                 flags |= PLUS;  in __do_vsprintf()
115                 flags |= SPACE;  in __do_vsprintf()
120                 flags |= SPECIAL;  in __do_vsprintf()
125                 flags |= PAD_ZERO;  in __do_vsprintf()
149                 flags |= LEFT;  in __do_vsprintf()
191             if (!(flags & LEFT))  in __do_vsprintf()
228             if (!(flags & LEFT))  in __do_vsprintf()
251             flags |= SMALL;  in __do_vsprintf()
253             flags |= SPECIAL;  in __do_vsprintf()
255                 str = write_num(str, va_arg(args, long long), 8, field_width, precision, flags);  in __do_vsprintf()
257                 str = write_num(str, va_arg(args, int), 8, field_width, precision, flags);  in __do_vsprintf()
265                 flags |= PAD_ZERO;  in __do_vsprintf()
268 …      str = write_num(str, (unsigned long)va_arg(args, void *), 16, field_width, precision, flags);  in __do_vsprintf()
274             flags |= SMALL;  in __do_vsprintf()
278                 str = write_num(str, va_arg(args, ll), 16, field_width, precision, flags);  in __do_vsprintf()
280                 str = write_num(str, va_arg(args, int), 16, field_width, precision, flags);  in __do_vsprintf()
287             flags |= SIGN;  in __do_vsprintf()
289                 str = write_num(str, va_arg(args, long long), 10, field_width, precision, flags);  in __do_vsprintf()
291                 str = write_num(str, va_arg(args, int), 10, field_width, precision, flags);  in __do_vsprintf()
297 …         str = write_num(str, va_arg(args, unsigned long long), 10, field_width, precision, flags);  in __do_vsprintf()
299                 str = write_num(str, va_arg(args, unsigned int), 10, field_width, precision, flags);  in __do_vsprintf()
321             str = write_float_point_num(str, va_arg(args, double), field_width, precision, flags);  in __do_vsprintf()
383 static char *write_num(char *str, ul num, int base, int field_width, int precision, int flags)  in write_num()  argument
403     if (flags & SMALL)  in write_num()
406     if (flags & LEFT)  in write_num()
407         flags &= ~PAD_ZERO;  in write_num()
409     pad = (flags & PAD_ZERO) ? '0' : ' ';  in write_num()
413     if (flags & SIGN)  in write_num()
427         sign = (flags & PLUS) ? '+' : ((flags & SPACE) ? ' ' : 0);  in write_num()
434     if (flags & SPECIAL)  in write_num()
461     if (!(flags & (LEFT + PAD_ZERO)))  in write_num()
467     if (flags & SPECIAL)  in write_num()
475     if (!(flags & LEFT))  in write_num()
493 static char *write_float_point_num(char *str, double num, int field_width, int precision, int flags)  in write_float_point_num()  argument
509     if (flags & SMALL)  in write_float_point_num()
513     pad = (flags & PAD_ZERO) ? '0' : ' ';  in write_float_point_num()
515     if (flags & SIGN && num < 0)  in write_float_point_num()
523         sign = (flags & PLUS) ? '+' : ((flags & SPACE) ? ' ' : 0);  in write_float_point_num()
555     if (!(flags & LEFT))  in write_float_point_num()