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浮点数在内存中的表示 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
...：大家面试的时候可能会经常遇到考察浮点数与零比较的问题，是简单的 f == 0 吗？当然不是，正确的写法应该是f > -1e-7 && f < 1e-7，为什么呢？
浮点型，由于精度关系（float精度：2^23 = 8388608，一共7位，同理double 16位），最小分...
浮点数在内存中的表示 - C/C++ - 清泛网 - 专注C/C++及内核技术
...：大家面试的时候可能会经常遇到考察浮点数与零比较的问题，是简单的 f == 0 吗？当然不是，正确的写法应该是f > -1e-7 && f < 1e-7，为什么呢？
浮点型，由于精度关系（float精度：2^23 = 8388608，一共7位，同理double 16位），最小分...
周鸿祎创业以来的“六大战役” 酷派会是最后一战 - 资讯 - 清泛网 - 专注C/...
...有“你死我活”。
周鸿祎是个什么样的人？
对于这个问题，对于没有接触过老周的人来说真的很难回答的好，回答的准确，只能通过度娘、万能的知乎对其了解一二。
员工：来360之前，看过老周很多文章和访谈，和别的大佬...
curl_exec() always returns false
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+1: Simple and straight trouble-shooting for curl in PHP on curl_exec FALSE return. - Curl Verbose Mode in PHP example
– hakre
Nov 9 '12 at 20:10
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A better similarity ranking algorithm for variable length strings
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Here's my PHP implementation of suggested StrikeAMatch algorithm, by Simon White. the advantages (like it says in the link) are:
A true reflection of lexical similarity - strings with small differences should be recognised as being ...
Formatting code in Notepad++
...rmat/auto-indent command? Nothing works. Nothing will auto-indent either PHP or JS on this day 2017-05-29. Can anyone explain what's going wrong and why the simple business of automatically indenting PHP and JS code is proving such a b*tching pain in the ***?
– mike rodent
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【解决】asan runtime does not come first in initial library list - C/C...
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注：加-fsanitize=address编译选项可以检查出更详细的内存问题，不加也能编译通过也能执行检查。
参考：https://stackoverflow.com/questions/59853730/asan-issue-with-asan-library-loading
2021/8/5 添加2、3节。
asan 内存跟踪
Should MySQL have its timezone set to UTC?
...negative values from FROM_UNIXTIME
Sources:
https://bugs.mysql.com/bug.php?id=68861
http://dev.mysql.com/doc/refman/5.0/en/date-and-time-functions.html
http://dev.mysql.com/doc/refman/5.1/en/datetime.html
http://en.wikipedia.org/wiki/Coordinated_Universal_Time
http://shafiqissani.wordpress.com/2...
How to shorten my conditional statements
...ould have an in_array function that returns a Boolean directly (similar to PHP), but that's just wishful thinking (Update: it now does. It's called includes. See above). Note that jQuery's inArray, while sharing PHP's method signature, actually mimics the native indexOf functionality (which is usefu...
Vim and Ctags tips and tricks [closed]
...mplete, code snippets, and much more.
http://www.vim.org/scripts/script.php?script_id=1764
taglist.vim : Source code browser (supports C/C++, java, perl, python, tcl, sql, php, etc)
http://www.vim.org/scripts/script.php?script_id=273
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