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List: asterisk-dev
Subject: Re: [asterisk-dev] [Code Review] Option for Read to be able to accept #
From: "Mark Michelson" <reviewboard () asterisk ! org>
Date: 2013-02-25 20:08:14
Message-ID: 20130225200814.28758.74638 () hotblack ! digium ! com
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In addition to what I have pointed out, there are some coding guidelines vi=
olations here. The most common ones are that spaces are missing around oper=
ators and there are braces missing for one-line if statements. I know that =
you were just copying and pasting from other portions of app_read, but thos=
e were written before certain coding guidelines had been put in place (Read=
is a very old application)
http://svn.asterisk.org/svn/asterisk/trunk/apps/app_read.c
<https://reviewboard.asterisk.org/r/2354/#comment15047>
I don't like the comparison of to and maxdigits to their initial values=
here. A better comparison would be:
=
if (ast_test_flag(&flags, OPT_HASH) && (ast_strlen_zero(arglist.timeout=
) && ast_strlen_zero(arglist.maxdigits)))
=
This way, you're explicitly checking that the user provided an argument=
instead of checking for a change from the initial value. This is good for =
two reasons:
=
1) If, for whatever reason, the initial values change, there will be no=
need to change the if statement any
2) More bizarrely, if a user were to specify maxdigits as 255, then we =
not would mysteriously claim invalid input was provided.
http://svn.asterisk.org/svn/asterisk/trunk/apps/app_read.c
<https://reviewboard.asterisk.org/r/2354/#comment15048>
Putting the ast_test_flag() statement in the while loop test is odd bec=
ause it does not change on each round of the loop. You should put it in an =
outer if statement and only run the while loop if the flag tests true.
http://svn.asterisk.org/svn/asterisk/trunk/apps/app_read.c
<https://reviewboard.asterisk.org/r/2354/#comment15050>
This loop is more-or-less the same as the loop above that is used if a =
tonezone sound is played. You should factor the logic into a function of it=
s own.
http://svn.asterisk.org/svn/asterisk/trunk/apps/app_read.c
<https://reviewboard.asterisk.org/r/2354/#comment15049>
It is impossible for this if statement to evaluate true. The reason is =
that if the code has reached this point, it is guaranteed that the OPT_HASH=
flag is set. You can eliminate this if statement and its body entirely.
=
Of course, if you take the advice of factoring this loop out into its o=
wn function, then you'll have to keep this if statement in so that it can r=
emain generic.
- Mark
On Feb. 25, 2013, 2:03 p.m., Birger Harzenetter wrote:
> =
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviewboard.asterisk.org/r/2354/
> -----------------------------------------------------------
> =
> (Updated Feb. 25, 2013, 2:03 p.m.)
> =
> =
> Review request for Asterisk Developers.
> =
> =
> Summary
> -------
> =
> Option for Read to be able to accept #
> https://issues.asterisk.org/jira/browse/ASTERISK-18454
> =
> =
> This addresses bug ASTERISK-18454.
> https://issues.asterisk.org/jira/browse/ASTERISK-18454
> =
> =
> Diffs
> -----
> =
> http://svn.asterisk.org/svn/asterisk/trunk/apps/app_read.c 381515 =
> =
> Diff: https://reviewboard.asterisk.org/r/2354/diff
> =
> =
> Testing
> -------
> =
> =
> Thanks,
> =
> Birger
> =
>
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<br />
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: \
-pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">In addition to what I \
have pointed out, there are some coding guidelines violations here. The most common \
ones are that spaces are missing around operators and there are braces missing for \
one-line if statements. I know that you were just copying and pasting from other \
portions of app_read, but those were written before certain coding guidelines had \
been put in place (Read is a very old application)</pre> <br />
<div>
<table width="100%" border="0" bgcolor="white" style="border: 1px solid #C0C0C0; \
border-collapse: collapse; margin: 2px padding: 2px;"> <thead>
<tr>
<th colspan="4" bgcolor="#F0F0F0" style="border-bottom: 1px solid #C0C0C0; \
font-size: 9pt; padding: 4px 8px; text-align: left;"> <a \
href="https://reviewboard.asterisk.org/r/2354/diff/1/?file=33612#file33612line197" \
style="color: black; font-weight: bold; text-decoration: \
underline;">http://svn.asterisk.org/svn/asterisk/trunk/apps/app_read.c</a> <span \
style="font-weight: normal;">
(Diff revision 1)
</span>
</th>
</tr>
</thead>
<tbody style="background-color: #e4d9cb; padding: 4px 8px; text-align: center;">
<tr>
<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static \
char *app = "Read";</pre></td>
</tr>
</tbody>
<tbody>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">197</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="k">if</span> <span class="p">(</span><span class="n">ast_test_flag</span><span \
class="p">(</span><span class="o">&</span><span class="n">flags</span><span \
class="p">,</span> <span class="n">OPT_HASH</span><span class="p">)</span> <span \
class="o">&&</span> <span class="n">to</span> <span class="o">==</span> <span \
class="mi">0</span> <span class="o">&&</span> <span \
class="n">maxdigits</span> <span class="o">==</span> <span class="mi">255</span><span \
class="p">)</span> <span class="p">{</span></pre></td> </tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; \
white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I don't \
like the comparison of to and maxdigits to their initial values here. A better \
comparison would be:
if (ast_test_flag(&flags, OPT_HASH) && (ast_strlen_zero(arglist.timeout) \
&& ast_strlen_zero(arglist.maxdigits)))
This way, you're explicitly checking that the user provided an argument instead \
of checking for a change from the initial value. This is good for two reasons:
1) If, for whatever reason, the initial values change, there will be no need to \
change the if statement any 2) More bizarrely, if a user were to specify maxdigits as \
255, then we not would mysteriously claim invalid input was provided.</pre> </div>
<br />
<div>
<table width="100%" border="0" bgcolor="white" style="border: 1px solid #C0C0C0; \
border-collapse: collapse; margin: 2px padding: 2px;"> <thead>
<tr>
<th colspan="4" bgcolor="#F0F0F0" style="border-bottom: 1px solid #C0C0C0; \
font-size: 9pt; padding: 4px 8px; text-align: left;"> <a \
href="https://reviewboard.asterisk.org/r/2354/diff/1/?file=33612#file33612line258" \
style="color: black; font-weight: bold; text-decoration: \
underline;">http://svn.asterisk.org/svn/asterisk/trunk/apps/app_read.c</a> <span \
style="font-weight: normal;">
(Diff revision 1)
</span>
</th>
</tr>
</thead>
<tbody style="background-color: #e4d9cb; padding: 4px 8px; text-align: center;">
<tr>
<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static \
char *app = "Read";</pre></td>
</tr>
</tbody>
<tbody>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">258</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="k">while</span> <span class="p">(</span><span class="n">x</span> <span \
class="o"><</span> <span class="n">maxdigits</span> <span \
class="o">&&</span> <span class="n">ast_test_flag</span><span \
class="p">(</span><span class="o">&</span><span class="n">flags</span><span \
class="p">,</span> <span class="n">OPT_HASH</span><span class="p">)</span> <span \
class="o">&&</span> <span class="n">res</span><span class="p">)</span> <span \
class="p">{</span></pre></td> </tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; \
white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Putting the \
ast_test_flag() statement in the while loop test is odd because it does not change on \
each round of the loop. You should put it in an outer if statement and only run the \
while loop if the flag tests true.</pre> </div>
<br />
<div>
<table width="100%" border="0" bgcolor="white" style="border: 1px solid #C0C0C0; \
border-collapse: collapse; margin: 2px padding: 2px;"> <thead>
<tr>
<th colspan="4" bgcolor="#F0F0F0" style="border-bottom: 1px solid #C0C0C0; \
font-size: 9pt; padding: 4px 8px; text-align: left;"> <a \
href="https://reviewboard.asterisk.org/r/2354/diff/1/?file=33612#file33612line259" \
style="color: black; font-weight: bold; text-decoration: \
underline;">http://svn.asterisk.org/svn/asterisk/trunk/apps/app_read.c</a> <span \
style="font-weight: normal;">
(Diff revision 1)
</span>
</th>
</tr>
</thead>
<tbody style="background-color: #e4d9cb; padding: 4px 8px; text-align: center;">
<tr>
<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static \
char *app = "Read";</pre></td>
</tr>
</tbody>
<tbody>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">259</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="n">res</span> <span class="o">=</span> <span \
class="n">ast_waitfordigit</span><span class="p">(</span><span \
class="n">chan</span><span class="p">,</span> <span class="n">to</span><span \
class="p">);</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">260</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="k">if</span> <span class="p">(</span><span class="n">res</span> <span \
class="o"><</span> <span class="mi">1</span><span class="p">)</span> <span \
class="p">{</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">261</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="k">if</span> <span class="p">(</span><span class="n">res</span> <span \
class="o">==</span> <span class="mi">0</span><span class="p">)</span></pre></td> \
</tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">262</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="n">status</span> <span class="o">=</span> <span \
class="s">"TIMEOUT"</span><span class="p">;</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">263</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="n">tmp</span><span class="p">[</span><span class="n">x</span><span \
class="p">]</span> <span class="o">=</span> <span class="sc">'\0'</span><span \
class="p">;</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">264</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="k">break</span><span class="p">;</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">265</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="p">}</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">266</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="n">tmp</span><span class="p">[</span><span class="n">x</span><span \
class="o">++</span><span class="p">]</span> <span class="o">=</span> <span \
class="n">res</span><span class="p">;</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">267</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="k">if</span> <span class="p">(</span><span class="n">tmp</span><span \
class="p">[</span><span class="n">x</span><span class="o">-</span><span \
class="mi">1</span><span class="p">]</span> <span class="o">==</span> <span \
class="sc">'#'</span> <span class="o">&&</span> <span \
class="o">!</span><span class="n">ast_test_flag</span><span class="p">(</span><span \
class="o">&</span><span class="n">flags</span><span class="p">,</span> <span \
class="n">OPT_HASH</span><span class="p">))</span> <span \
class="p">{</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">268</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="n">tmp</span><span class="p">[</span><span class="n">x</span><span \
class="o">-</span><span class="mi">1</span><span class="p">]</span> <span \
class="o">=</span> <span class="sc">'\0'</span><span \
class="p">;</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">269</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="n">status</span> <span class="o">=</span> <span \
class="s">"OK"</span><span class="p">;</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">270</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="k">break</span><span class="p">;</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">271</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="p">}</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">272</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="k">if</span> <span class="p">(</span><span class="n">x</span> <span \
class="o">>=</span> <span class="n">maxdigits</span><span class="p">)</span> <span \
class="p">{</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">273</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="n">status</span> <span class="o">=</span> <span \
class="s">"OK"</span><span class="p">;</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">274</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="p">}</span></pre></td> </tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; \
white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">This loop \
is more-or-less the same as the loop above that is used if a tonezone sound is \
played. You should factor the logic into a function of its own.</pre> </div>
<br />
<div>
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<th colspan="4" bgcolor="#F0F0F0" style="border-bottom: 1px solid #C0C0C0; \
font-size: 9pt; padding: 4px 8px; text-align: left;"> <a \
href="https://reviewboard.asterisk.org/r/2354/diff/1/?file=33612#file33612line267" \
style="color: black; font-weight: bold; text-decoration: \
underline;">http://svn.asterisk.org/svn/asterisk/trunk/apps/app_read.c</a> <span \
style="font-weight: normal;">
(Diff revision 1)
</span>
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<tbody style="background-color: #e4d9cb; padding: 4px 8px; text-align: center;">
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static \
char *app = "Read";</pre></td>
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<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">267</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="k">if</span> <span class="p">(</span><span class="n">tmp</span><span \
class="p">[</span><span class="n">x</span><span class="o">-</span><span \
class="mi">1</span><span class="p">]</span> <span class="o">==</span> <span \
class="sc">'#'</span> <span class="o">&&</span> <span \
class="o">!</span><span class="n">ast_test_flag</span><span class="p">(</span><span \
class="o">&</span><span class="n">flags</span><span class="p">,</span> <span \
class="n">OPT_HASH</span><span class="p">))</span> <span \
class="p">{</span></pre></td> </tr>
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<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">268</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="n">tmp</span><span class="p">[</span><span class="n">x</span><span \
class="o">-</span><span class="mi">1</span><span class="p">]</span> <span \
class="o">=</span> <span class="sc">'\0'</span><span \
class="p">;</span></pre></td> </tr>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">269</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="n">status</span> <span class="o">=</span> <span \
class="s">"OK"</span><span class="p">;</span></pre></td> </tr>
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<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">270</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="k">break</span><span class="p">;</span></pre></td> </tr>
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<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">271</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="p">}</span></pre></td> </tr>
</tbody>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; \
white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">It is \
impossible for this if statement to evaluate true. The reason is that if the code has \
reached this point, it is guaranteed that the OPT_HASH flag is set. You can eliminate \
this if statement and its body entirely.
Of course, if you take the advice of factoring this loop out into its own function, \
then you'll have to keep this if statement in so that it can remain \
generic.</pre> </div>
<br />
<p>- Mark</p>
<br />
<p>On February 25th, 2013, 2:03 p.m., Birger Harzenetter wrote:</p>
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<td>
<div>Review request for Asterisk Developers.</div>
<div>By Birger Harzenetter.</div>
<p style="color: grey;"><i>Updated Feb. 25, 2013, 2:03 p.m.</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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1px solid #b8b5a0"> <tr>
<td>
<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: \
-moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: \
break-word;">Option for Read to be able to accept # \
https://issues.asterisk.org/jira/browse/ASTERISK-18454</pre> </td>
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<div style="margin-top: 1.5em;">
<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="https://issues.asterisk.org/jira/browse/ASTERISK-18454">ASTERISK-18454</a>
</div>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
<ul style="margin-left: 3em; padding-left: 0;">
<li>http://svn.asterisk.org/svn/asterisk/trunk/apps/app_read.c <span style="color: \
grey">(381515)</span></li>
</ul>
<p><a href="https://reviewboard.asterisk.org/r/2354/diff/" style="margin-left: \
3em;">View Diff</a></p>
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