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Intersection of two lists in Bash
... was awesome! I ran $ comm -12 <(git grep -il "\$this->error(" -- "*.php") <(git grep -il "Dash_Api_Json_Response" -- "*.php"), and luckily I ended up with the name of the file only that contained the trait.
– localheinz
Apr 7 '17 at 15:45
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How do I split a multi-line string into multiple lines?
...An advantage to this method, when compared to str.split, is not needing to allocate any memory (it reads the string in-place). A disadvantage is that it's much slower if you use StringIO (about 50x). If you use cStringIO, however, it's about 2x faster
– goncalopp
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How is the default max Java heap size determined?
...cts to require it. A much smaller amount, termed the initial heap size, is allocated during JVM initialization. ...
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Server JVM heap configuration ergonomics are now the same as the Client, except that the default maximum heap size for 32-bit JVMs is 1 gigabyte, corresponding to a physical me...
Stop Excel from automatically converting certain text values to dates
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In my MySQL query (for CSV output through PHP), I used CONCAT('\t', column_name). Also did the trick. Thanks!
– Just Plain High
Jun 24 '16 at 14:39
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莱昂氏unix源代码分析 PDF - 文档下载 - 清泛网 - 专注C/C++及内核技术
... 初始化、进程初始化
第5章 两个文件 241
5.1 文件malloc.c 241
5.1.1 列表维护规则 241
5.1.2 malloc(2528) 242
5.1.3 mfree(2556) 243
5.1.4 结论 244
5.2 文件prf.c 244
5.2.1 printf(2340) 244
5.2.2 printn(2369) 245
5.2.3 putchar(2386) 246
5.2.4 p...
Mongoose (mongodb) batch insert?
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insertMany doesn't work for me. I got a fatal error allocation failed. But if I use collection.insert It works perfectly.
– John
Dec 12 '16 at 13:03
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Java ByteBuffer to String
...wers may not work with a ByteBuffer that's been created through ByteBuffer.allocateDirect().
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Convert any object to a byte[]
... unmanaged buffers required.
var bytes = new byte[size];
var ptr = Marshal.AllocHGlobal(size);
// Copy object byte-to-byte to unmanaged memory.
Marshal.StructureToPtr(your_object, ptr, false);
// Copy data from unmanaged memory to managed buffer.
Marshal.Copy(ptr, bytes, 0, size);
// Release unmanag...
How do I clone a generic list in C#?
... I think List.ConvertAll might do this in faster time, since it can pre-allocate the entire array for the list, versus having to resize all the time.
– MichaelGG
Oct 21 '08 at 17:43
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How to find duplicates in 2 columns not 1
...e of
their InnoDB fast index creation feature [http://bugs.mysql.com/bug.php?id=40344]. In this case
first run set session old_alter_table=1 and then the above command
will work fine
Update - ALTER IGNORE Removed In 5.7
From the docs
As of MySQL 5.6.17, the IGNORE clause is deprecated ...