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332 volume VI os16<br />
Sorgenti della libreria generale 333<br />
2811043 | if (format[f] == ’]’ && count > 0)<br />
2811044 | {<br />
2811045 | break;<br />
2811046 | }<br />
2811047 | //<br />
2811048 | // Check for an interval.<br />
2811049 | //<br />
2811050 | if (format[f+1] == ’-’<br />
2811051 | && format[f+2] != ’]’<br />
2811052 | && format[f+2] != 0)<br />
2811053 | {<br />
2811054 | //<br />
2811055 | // Interval.<br />
2811056 | //<br />
2811057 | for (index = format[f];<br />
2811058 | index 0 && *input != 0;<br />
2811091 | width--, ptr_char++, input++)<br />
2811092 | {<br />
2811093 | index = *input;<br />
2811094 | if (ascii[index])<br />
2811095 | {<br />
2811096 | if (!flag_star) *ptr_char = *input;<br />
2811097 | count++;<br />
2811098 | }<br />
2811099 | else<br />
2811100 | {<br />
2811101 | break;<br />
2811102 | }<br />
2811103 | }<br />
2811104 | //<br />
2811105 | if (count) consumed++;<br />
2811106 | if (count && !flag_star) assigned++;<br />
2811107 | //<br />
2811108 | f += 1;<br />
2811109 | }<br />
2811110 | else if (format[f] == ’p’)<br />
2811111 | {<br />
2811112 | //------------------------------------------ void *.<br />
2811113 | value_i = strtointmax (input, &next, 16, width);<br />
2811114 | if (input == next)<br />
2811115 | {<br />
2811116 | return (ass_or_eof (consumed, assigned));<br />
2811117 | }<br />
2811118 | consumed++;<br />
2811119 | if (!flag_star)<br />
2811120 | {<br />
2811121 | ptr_void = va_arg (ap, void **);<br />
2811122 | *ptr_void = (void *) ((int) value_i);<br />
2811123 | assigned++;<br />
2811124 | }<br />
2811125 | f += 1;<br />
2811126 | input = next;<br />
2811127 | }<br />
2811128 | else if (format[f] == ’n’)<br />
2811129 | {<br />
2811130 | //--------------- signed char, string index counter.<br />
2811131 | ptr_sint = va_arg (ap, signed int *);<br />
2811132 | *ptr_sint = (signed char) (input - start + scanned);<br />
2811133 | f += 1;<br />
2811134 | }<br />
2811135 | else<br />
2811136 | {<br />
2811137 | //---------------- unsupported or unknown specifier.<br />
2811138 | ;<br />
2811139 | }<br />
2811140 |<br />
2811141 | //------------------------------------------------------<br />
2811142 | // End of specifier.<br />
2811143 | //------------------------------------------------------<br />
2811144 |<br />
2811145 | width_string[0] = ’\0’;<br />
2811146 | specifier = 0;<br />
2811147 | specifier_flags = 0;<br />
2811148 | specifier_width = 0;<br />
2811149 | specifier_type = 0;<br />
2811150 | flag_star = 0;<br />
2811151 |<br />
2811152 | }<br />
2811153 | }<br />
2811154 | //<br />
2811155 | // The format or the input string is terminated.<br />
2811156 | //<br />
2811157 | if (&format[f] < end_format && stream)<br />
2811158 | {<br />
2811159 | //<br />
2811160 | // Only the input string is finished, and the input comes<br />
2811161 | // from a stream, so another read will be done.<br />
2811162 | //<br />
2811163 | scanned += (int) (input - start);<br />
2811164 | continue;<br />
2811165 | }<br />
2811166 | //<br />
2811167 | // The format string is terminated.<br />
2811168 | //<br />
2811169 | return (ass_or_eof (consumed, assigned));<br />
2811170 | }<br />
2811171 |}<br />
2811172 |//----------------------------------------------------------------------<br />
2811173 |static intmax_t<br />
2811174 |strtointmax (const char *restrict string, char **endptr,<br />
2811175 | int base, size_t max_width)<br />
2811176 |{<br />
2811177 | int i;<br />
2811178 | int d; // Digits counter.<br />
2811179 | int sign = +1;<br />
2811180 | intmax_t number;<br />
2811181 | intmax_t previous;<br />
2811182 | int digit;<br />
2811183 | //<br />
2811184 | bool flag_prefix_oct = 0;<br />
2811185 | bool flag_prefix_exa = 0;<br />
2811186 | bool flag_prefix_dec = 0;<br />
2811187 | //<br />
2811188 | // If the ‘max_width’ value is zero, fix it to the maximum<br />
2811189 | // that it can represent.<br />
2811190 | //<br />
2811191 | if (max_width == 0)<br />
2811192 | {<br />
2811193 | max_width = SIZE_MAX;<br />
2811194 | }<br />
2811195 | //<br />
2811196 | // Eat initial spaces, but if there are spaces, there is an<br />
2811197 | // error inside the calling function!<br />
2811198 | //<br />
2811199 | for (i = 0; isspace (string[i]); i++)<br />
2811200 | {<br />
2811201 | fprintf (stderr, "libc error: file \"%s\", line %i\n",<br />
2811202 | __FILE__, __LINE__);<br />
2811203 | ;<br />
2811204 | }<br />
2811205 | //<br />
2811206 | // Check sign. The ‘max_width’ counts also the sign, if there is<br />
2811207 | // one.<br />
2811208 | //<br />
2811209 | if (string[i] == ’+’)<br />
2811210 | {<br />
2811211 | sign = +1;<br />
2811212 | i++;<br />
2811213 | max_width--;<br />
2811214 | }<br />
2811215 | else if (string[i] == ’-’)<br />
2811216 | {<br />
2811217 | sign = -1;<br />
2811218 | i++;<br />
2811219 | max_width--;<br />
2811220 | }<br />
2811221 | //<br />
2811222 | // Check for prefix.<br />
2811223 | //<br />
2811224 | if (string[i] == ’0’)<br />
2811225 | {<br />
2811226 | if (string[i+1] == ’x’ || string[i+1] == ’X’)<br />
2811227 | {<br />
2811228 | flag_prefix_exa = 1;<br />
2811229 | }<br />
2811230 | if (isdigit (string[i+1]))<br />
2811231 | {<br />
2811232 | flag_prefix_oct = 1;<br />
2811233 | }<br />
2811234 | }<br />
2811235 | //<br />
2811236 | if (string[i] > ’0’ && string[i]
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