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</span><span style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;</span>int delay;<span style='mso-tab-count:
2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>//
</span></span><span style='mso-bookmark:_Toc16587483'><span style='font-size:
9.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>两次发声间隔，以微秒为单位</span></span><span style='mso-bookmark:_Toc16587483'><span
style='font-size:9.0pt'> <span lang=EN-US><o:p></o:p></span></span></span></p>

<p class=MsoNormal style='text-indent:29.9pt;mso-char-indent-count:3.32;
mso-char-indent-size:9.0pt;mso-char-indent-size:9pt'><span style='mso-bookmark:
_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>} beep_parms_t;<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'>&nbsp;<o:p></o:p></span></span></p>

<p class=MsoNormal style='text-indent:29.9pt;mso-char-indent-count:3.32;
mso-char-indent-size:9.0pt;mso-char-indent-size:9pt'><span style='mso-bookmark:
_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>// </span></span><span
style='mso-bookmark:_Toc16587483'><span style='font-size:9.0pt;font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>打印帮助信息并退出</span></span><span
style='mso-bookmark:_Toc16587483'><span style='font-size:9.0pt'> <span
lang=EN-US><o:p></o:p></span></span></span></p>

<p class=MsoNormal style='text-indent:29.9pt;mso-char-indent-count:3.32;
mso-char-indent-size:9.0pt;mso-char-indent-size:9pt'><span style='mso-bookmark:
_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>void usage_bail(const
char *executable_name)<o:p></o:p></span></span></p>

<p class=MsoNormal style='text-indent:29.9pt;mso-char-indent-count:3.32;
mso-char-indent-size:9.0pt;mso-char-indent-size:9pt'><span style='mso-bookmark:
_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>{<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>printf(&quot;Usage: \n \t%s [-f frequency] [-l length] [-r reps] [-d
delay] \n &quot;,executable_name) ;<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>exit(1)
;<o:p></o:p></span></span></p>

<p class=MsoNormal style='text-indent:29.9pt;mso-char-indent-count:3.32;
mso-char-indent-size:9.0pt;mso-char-indent-size:9pt'><span style='mso-bookmark:
_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>}<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'>&nbsp;<o:p></o:p></span></span></p>

<p class=MsoNormal style='text-indent:29.9pt;mso-char-indent-count:3.32;
mso-char-indent-size:9.0pt;mso-char-indent-size:9pt'><span style='mso-bookmark:
_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>// </span></span><span
style='mso-bookmark:_Toc16587483'><span style='font-size:9.0pt;font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>分析运行参数，各项意义如下：</span></span><span
style='mso-bookmark:_Toc16587483'><span lang=EN-US style='font-size:9.0pt'><o:p></o:p></span></span></p>

<p class=MsoNormal style='text-indent:29.9pt;mso-char-indent-count:3.32;
mso-char-indent-size:9.0pt;mso-char-indent-size:9pt'><span style='mso-bookmark:
_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>// &quot;-f &lt;</span></span><span
style='mso-bookmark:_Toc16587483'><span style='font-size:9.0pt;font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>以</span></span><span
style='mso-bookmark:_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>Hz</span></span><span
style='mso-bookmark:_Toc16587483'><span style='font-size:9.0pt;font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>为单位的频率值</span></span><span
style='mso-bookmark:_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>&gt;&quot;<o:p></o:p></span></span></p>

<p class=MsoNormal style='text-indent:29.9pt;mso-char-indent-count:3.32;
mso-char-indent-size:9.0pt;mso-char-indent-size:9pt'><span style='mso-bookmark:
_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>// &quot;-l &lt;</span></span><span
style='mso-bookmark:_Toc16587483'><span style='font-size:9.0pt;font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>以毫秒为单位的发声时长</span></span><span
style='mso-bookmark:_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>&gt;&quot;<o:p></o:p></span></span></p>

<p class=MsoNormal style='text-indent:29.9pt;mso-char-indent-count:3.32;
mso-char-indent-size:9.0pt;mso-char-indent-size:9pt'><span style='mso-bookmark:
_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>// &quot;-r &lt;</span></span><span
style='mso-bookmark:_Toc16587483'><span style='font-size:9.0pt;font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>重复次数</span></span><span
style='mso-bookmark:_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>&gt;&quot;<o:p></o:p></span></span></p>

<p class=MsoNormal style='text-indent:29.9pt;mso-char-indent-count:3.32;
mso-char-indent-size:9.0pt;mso-char-indent-size:9pt'><span style='mso-bookmark:
_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>// &quot;-d &lt;</span></span><span
style='mso-bookmark:_Toc16587483'><span style='font-size:9.0pt;font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>以毫秒为单位的间歇时长</span></span><span
style='mso-bookmark:_Toc16587483'><span lang=EN-US style='font-size:9.0pt'>&gt;&quot;<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'>&nbsp;<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>void parse_command_line(char **argv,
beep_parms_t *result)<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>{<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>char *arg0 =
*(argv++) ;<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>while
(*argv)<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;</span>{<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </span>if (!strcmp(*argv,
&quot;-f&quot; ) )<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </span>{<span
style='mso-tab-count:6'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:5'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>//
</span></span><span style='mso-bookmark:_Toc16587483'><span style='font-size:
9.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>频率</span></span><span style='mso-bookmark:_Toc16587483'><span
style='font-size:9.0pt'> <span lang=EN-US><o:p></o:p></span></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>int freq = atoi(*( ++argv) ) ;<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>if ( (freq &lt;= 0) || (freq &gt; 10000) )<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style='mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span>{<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>fprintf(stderr, &quot;Bad parameter: frequency must be from
l..10000\n&quot; ) ;<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>exit(1) ;<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style='mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;&nbsp; </span><span style="mso-spacerun:
yes">&nbsp;</span>}<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style='mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span>else<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style='mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span>{<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>result -&gt; freq = freq;<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>argv++;<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style='mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span>}<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </span>} else<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style='mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span>if (!strcmp(*argv,
&quot;-l&quot;) )<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style='mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span>{<span style='mso-tab-count:
9'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>//
</span></span><span style='mso-bookmark:_Toc16587483'><span style='font-size:
9.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>发声的时间长度</span></span><span style='mso-bookmark:_Toc16587483'><span
lang=EN-US style='font-size:9.0pt'><o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>int length = atoi( *(++argv) ) ;<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>if
(length &lt; 0)<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style='mso-tab-count:4'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>{<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style='mso-tab-count:4'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>fprintf(stderr, &quot;Bad parameter: length must be &gt;= 0\n&quot; ) ;<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>exit(1) ;<o:p></o:p></span></span></p>

<p class=MsoNormal><span style='mso-bookmark:_Toc16587483'><span lang=EN-US
style='font-size:9.0pt'><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp
12345

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