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Compile time string hashing
...ace, so you can store it in a std::unordered_map if you need consistency.
Based off of @JerryCoffin's excellent answer and the comment thread below it, but with an attempt to write it with current C++11 best practices (as opposed to anticipating them!).
Note that using a "raw hash" for a switch st...
How to use/install gcc on Mac OS X 10.8 / Xcode 4.4
...nclude-dir=/usr/include/c++/4.2.1 Apple LLVM version 6.0 (clang-600.0.51) (based on LLVM 3.5svn) Target: x86_64-apple-darwin14.0.0 Thread model: posix So am I using gcc?
– Thomas
Dec 14 '14 at 16:11
...
SEH stack 结构探索（1）--- 从 SEH 链的最底层（线程第1个SEH结构）说起 -...
...d037977 push offset ntdll32!_except_handler4 (777903dd)
7774dd29 64ff3500000000 push dword ptr fs:[0]
7774dd30 8b442410 mov eax,dword ptr [esp+10h]
7774dd34 896c2410 mov dword ptr [esp+10h],ebp
7774dd38 8d6c2410 lea ebp,[esp+10h]
7774dd3c 2be0 ...
Canvas width and height in HTML5
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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IPC performance: Named Pipe vs Socket
...nted a project in C with named pipes, thanks to standart file input-output based communication (fopen, fprintf, fscanf ...) it was so easy and clean (if that is also a consideration).
I even coded them with java (I was serializing and sending objects over them!)
Named pipes has one disadvantage:
...
Adding external library into Qt Creator project
...are using and put this in the CONFIG variable. And, for instance for Linux 64bit, then:
linux64 {
LIBSSL= $$OPENSSLPATH/linux64/lib/libssl.a
!exists($$LIBSSL): error ("Not existing $$LIBSSL")
LIBS+= $$LIBSSL
LIBCRYPTO= $$OPENSSLPATH/linux64/lib/libcrypto.a
!exists($$LIBCRYPTO): ...
Integer division with remainder in JavaScript?
...8 millisec
(a-(a%b))/b // -33, 0.6649 millisec
The above is based on 10 million trials for each.
Conclusion: Use (a/b>>0) (or (~~(a/b)) or (a/b|0)) to achieve about 20% gain in efficiency. Also keep in mind that they are all inconsistent with Math.floor, when a/b<0 &&...
How to detect my browser version and operating system using JavaScript?
...
Browser Name: Netscape
Browser Version: 5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/40.0.2214.115 Safari/537.36
Cookies Enabled: true
Platform: Win32
User-agent header: Mozilla/5.0 (Windows NT 6.1; WOW64)
AppleWebKit/537.36 (KHTML, like Gec...
Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php
...o your PHP.ini file, change the line in PHP.ini
If your line shows 32M try 64M:
memory_limit = 64M ; Maximum amount of memory a script may consume (64MB)
If you don't have access to PHP.ini try adding this to an .htaccess file:
php_value memory_limit 64M
...
Disable messages upon loading a package
...e:datasets"
[15] "package:methods" "Autoloads"
[17] "package:base"
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