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<h3>
Matt Selsky pushed to branch master
at <a href="https://gitlab.com/NTPsec/ntpsec">NTPsec / ntpsec</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://gitlab.com/NTPsec/ntpsec/-/commit/b45e26c042e2b59ab569e23513b7f93c7a02e806">b45e26c0</a></strong>
<div>
<span>by Sanjeev Gupta</span>
<i>at 2020-08-12T02:23:07+00:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix linkrot

... and a typo
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</li>
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<h4>1 changed file:</h4>
<ul>
<li class="file-stats">
<a href="#6aad525e680265871b9320d085c3e3a37e9efa05">
devel/hacking.adoc
</a>
</li>
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<h4>Changes:</h4>
<li id="6aad525e680265871b9320d085c3e3a37e9efa05">
<a href="https://gitlab.com/NTPsec/ntpsec/-/commit/b45e26c042e2b59ab569e23513b7f93c7a02e806#6aad525e680265871b9320d085c3e3a37e9efa05"><strong>devel/hacking.adoc</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -56,7 +56,7 @@ C99 is a coding standard, not an ABI standard, so it can happily</td>
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<pre style="margin: 0;"> <span id="LC56" class="line" lang="plaintext">coexist with distributions that use C89 conventions.</span>
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<pre style="margin: 0;"> <span id="LC58" class="line" lang="plaintext">You can download the C99 standard for free from here:</span>
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<pre style="margin: 0;">-<span id="LC59" class="line" lang="plaintext">    http<span class="idiff left right">s://atrey.karlin.mff.cuni.cz/projekty/vrr/doc/c99</span>.pdf</span>
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<pre style="margin: 0;">+<span id="LC59" class="line" lang="plaintext">    http<span class="idiff left right">://www.open-std.org/jtc1/sc22/WG14/www/docs/n1256</span>.pdf</span>
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<pre style="margin: 0;"> <span id="LC60" class="line" lang="plaintext"></span>
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<pre style="margin: 0;"> <span id="LC61" class="line" lang="plaintext">You *may* use C11-style anonymous unions.</span>
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<pre style="margin: 0;"> <span id="LC62" class="line" lang="plaintext"></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -69,7 +69,7 @@ You can read POSIX-1.2001, with 2004 Corrigendum, online for free here:</td>
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<pre style="margin: 0;"> <span id="LC69" class="line" lang="plaintext">    https://pubs.opengroup.org/onlinepubs/009695399/toc.htm</span>
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<pre style="margin: 0;"> <span id="LC70" class="line" lang="plaintext"></span>
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<pre style="margin: 0;"> <span id="LC71" class="line" lang="plaintext">You can see POSIX.1-2001, SUSv3, online for free here:</span>
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<pre style="margin: 0;">-<span id="LC72" class="line" lang="plaintext">    http<span class="idiff left right">://www.unix-systems</span>.org/version3/</span>
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<pre style="margin: 0;">+<span id="LC72" class="line" lang="plaintext">    http<span class="idiff left right">s://web.archive.org/web/20190501135119/http://www.unix</span>.org/version3/</span>
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<pre style="margin: 0;"> <span id="LC73" class="line" lang="plaintext"></span>
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<pre style="margin: 0;"> <span id="LC74" class="line" lang="plaintext">POSIX threads *are* considered part of the standardized API, but their</span>
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<pre style="margin: 0;"> <span id="LC75" class="line" lang="plaintext">use requires care.  The main part of ntpd assumes it is the only</span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -157,7 +157,7 @@ close to that call site as possible.</td>
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<pre style="margin: 0;"> <span id="LC157" class="line" lang="plaintext"></span>
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<pre style="margin: 0;"> <span id="LC158" class="line" lang="plaintext">=== Random numbers</span>
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<pre style="margin: 0;"> <span id="LC159" class="line" lang="plaintext"></span>
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<pre style="margin: 0;">-<span id="LC160" class="line" lang="plaintext">There are 2 types of random numbers - pseudo<span class="idiff left right"> </span>random and</span>
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<pre style="margin: 0;">+<span id="LC160" class="line" lang="plaintext">There are 2 types of random numbers - pseudo<span class="idiff left right">-</span>random and</span>
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<pre style="margin: 0;"> <span id="LC161" class="line" lang="plaintext">cryptographically secure.  For cryptographically secure needs,</span>
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<pre style="margin: 0;"> <span id="LC162" class="line" lang="plaintext">we use RAND_bytes() and RAND_priv_bytes() from OpenSSL.</span>
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<pre style="margin: 0;"> <span id="LC163" class="line" lang="plaintext">The actual use is funneled through ntp_RAND_bytes() to</span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -165,7 +165,7 @@ check the return code and crash if it doesn't work.</td>
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<pre style="margin: 0;"> <span id="LC165" class="line" lang="plaintext">RAND_bytes() can fail if the system doesn't collect enough</span>
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<pre style="margin: 0;"> <span id="LC166" class="line" lang="plaintext">entropy but we have never seen that happen yet.</span>
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<pre style="margin: 0;"> <span id="LC167" class="line" lang="plaintext"></span>
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<pre style="margin: 0;">-<span id="LC168" class="line" lang="plaintext">For general purpose pseudo<span class="idiff left right"> </span>randomness, we use random(3).  Note that</span>
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<pre style="margin: 0;">+<span id="LC168" class="line" lang="plaintext">For general purpose pseudo<span class="idiff left right">-</span>randomness, we use random(3).  Note that</span>
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<pre style="margin: 0;"> <span id="LC169" class="line" lang="plaintext">it only returns 31 bits.  It is much faster than RAND_bytes()</span>
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<pre style="margin: 0;"> <span id="LC170" class="line" lang="plaintext"></span>
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<pre style="margin: 0;"> <span id="LC171" class="line" lang="plaintext">RAND_MAX on FreeBSD is 0xfffffffd.</span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="182" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -182,22 +182,22 @@ That means OpenSSL version 1.1.1 or newer.</td>
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<pre style="margin: 0;"> <span id="LC182" class="line" lang="plaintext">Shared key authentication uses their crypto package.</span>
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<pre style="margin: 0;"> <span id="LC183" class="line" lang="plaintext">We also use their RAND_bytes().</span>
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<pre style="margin: 0;"> <span id="LC184" class="line" lang="plaintext"></span>
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<pre style="margin: 0;">-<span id="LC185" class="line" lang="plaintext">Note that OpenSSL 1.0.1 is no longer supported.  2020-Feb-17</span>
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<pre style="margin: 0;">-<span id="LC186" class="line" lang="plaintext">Note that OpenSSL 1.1.0 is no longer supported.  2020-Mar-12</span>
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<td class="diff-line-num new old_line" data-linenumber="187" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="185" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
185
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<pre style="margin: 0;">+<span id="LC185" class="line" lang="plaintext"><span class="idiff left right">   </span>Note that OpenSSL 1.0.1 is no longer supported.  2020-Feb-17</span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="187" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="186" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
186
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<pre style="margin: 0;">+<span id="LC186" class="line" lang="plaintext"><span class="idiff left right">   </span>Note that OpenSSL 1.1.0 is no longer supported.  2020-Mar-12</span>
</pre>
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187
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187
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<pre style="margin: 0;"> <span id="LC187" class="line" lang="plaintext"></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="188" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
188
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<td class="diff-line-num new_line old" data-linenumber="188" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC188" class="line" lang="plaintext">We also use waf, libaes_siv, <span class="idiff left right">and unity but we have local copies</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="189" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
189
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<td class="diff-line-num new_line old" data-linenumber="188" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC189" class="line" lang="plaintext"><span class="idiff left right">rather than depending</span> the host distro to provide them.</span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="190" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="188" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
188
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<pre style="margin: 0;">+<span id="LC188" class="line" lang="plaintext">We also use waf, libaes_siv, <span class="idiff left right">libjsmn, and unity but we have local</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="190" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="189" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
189
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<pre style="margin: 0;">+<span id="LC189" class="line" lang="plaintext"><span class="idiff left right">copies rather than depending on</span> the host distro to provide them.</span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="190" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
190
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190
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<pre style="margin: 0;"> <span id="LC190" class="line" lang="plaintext"></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="191" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
191
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<td class="diff-line-num new_line" data-linenumber="191" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
191
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<pre style="margin: 0;"> <span id="LC191" class="line" lang="plaintext">=== Coding style and indentation</span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="192" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
192
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<td class="diff-line-num new_line" data-linenumber="192" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
192
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<pre style="margin: 0;"> <span id="LC192" class="line" lang="plaintext"></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="193" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
193
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<td class="diff-line-num new_line old" data-linenumber="193" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC193" class="line" lang="plaintext">Dr. Dave Mills liked this code indented formatted in a consistent way.</span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="194" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="193" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
193
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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC193" class="line" lang="plaintext">Dr. Dave Mills liked this code indented <span class="idiff left right">and </span>formatted in a consistent way.</span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="194" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
194
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<td class="diff-line-num new_line" data-linenumber="194" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
194
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<pre style="margin: 0;"> <span id="LC194" class="line" lang="plaintext">The file "dot.emacs" has the emacs C-mode indentation style that Dave</span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="195" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
195
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<td class="diff-line-num new_line" data-linenumber="195" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
195
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<pre style="margin: 0;"> <span id="LC195" class="line" lang="plaintext">likes. It's a bit archaic, but we've stuck with it to preserve</span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="196" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
196
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<td class="diff-line-num new_line" data-linenumber="196" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
196
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<pre style="margin: 0;"> <span id="LC196" class="line" lang="plaintext">continuity; you should, too.</span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="197" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
197
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<td class="diff-line-num new_line" data-linenumber="197" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
197
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<pre style="margin: 0;"> <span id="LC197" class="line" lang="plaintext"></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="198" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
198
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<td class="diff-line-num new_line" data-linenumber="198" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
198
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<pre style="margin: 0;"> <span id="LC198" class="line" lang="plaintext">*Do* always add the optional braces around if/for/while/do bodies.</span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="199" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
199
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<td class="diff-line-num new_line" data-linenumber="199" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
199
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<pre style="margin: 0;"> <span id="LC199" class="line" lang="plaintext">It helps readability, staves off some subtle errors, and will be</span>
</pre>
</td>
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<td class="diff-line-num old old_line" data-linenumber="200" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
200
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<td class="diff-line-num new_line old" data-linenumber="200" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC200" class="line" lang="plaintext">helpful if the code is ever moved to <span class="idiff left right">Go</span>.</span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="201" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="200" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
200
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<pre style="margin: 0;">+<span id="LC200" class="line" lang="plaintext">helpful if the code is ever moved to <span class="idiff left right">https://golang.org/[Go]</span>.</span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="201" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
201
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<td class="diff-line-num new_line" data-linenumber="201" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
201
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<pre style="margin: 0;"> <span id="LC201" class="line" lang="plaintext"></span>
</pre>
</td>
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<pre style="margin: 0;"> <span id="LC202" class="line" lang="plaintext">A discussion about using uncrustify to mass convert all the C sources</span>
</pre>
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<pre style="margin: 0;"> <span id="LC203" class="line" lang="plaintext">to a more current indentation and format style is ongoing.  As it will</span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="303" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="303" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -303,9 +303,9 @@ a Pyflakes test, we probably will not merge it.</td>
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<pre style="margin: 0;"> <span id="LC303" class="line" lang="plaintext"></span>
</pre>
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<pre style="margin: 0;"> <span id="LC304" class="line" lang="plaintext">https://pypi.python.org/pypi/pyflakes</span>
</pre>
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<pre style="margin: 0;"> <span id="LC305" class="line" lang="plaintext"></span>
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<td class="diff-line-num old old_line" data-linenumber="306" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC306" class="line" lang="plaintext">Note: In the future, the Python baseline may</span>
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<pre style="margin: 0;">-<span id="LC307" class="line" lang="plaintext">https://www.curiousefficiency.org/posts/2015/04/stop-supporting-python26.html[change</span>
</pre>
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<pre style="margin: 0;">-<span id="LC308" class="line" lang="plaintext">t<span class="idiff left right"> 2.7.2</span>].</span>
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<pre style="margin: 0;">+<span id="LC306" class="line" lang="plaintext">Note: In the future, the Python baseline may<span class="idiff left right"> be</span></span>
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<pre style="margin: 0;">+<span id="LC307" class="line" lang="plaintext">https://www.curiousefficiency.org/posts/2015/04/stop-supporting-python26.html[change<span class="idiff left right">d</span></span>
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<td class="diff-line-num new old_line" data-linenumber="309" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<pre style="margin: 0;">+<span id="LC308" class="line" lang="plaintext">t<span class="idiff left right">o 2.7</span>].</span>
</pre>
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<pre style="margin: 0;"> <span id="LC309" class="line" lang="plaintext"></span>
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<pre style="margin: 0;"> <span id="LC310" class="line" lang="plaintext">== General notes</span>
</pre>
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<pre style="margin: 0;"> <span id="LC311" class="line" lang="plaintext"></span>
</pre>
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