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What is the memory consumption of an object in Java?

...r example, the JVM or native compiler might decide to store a boolean[] in 64-bit long chunks like a BitSet. It does not have to tell you, so long as the program gives the same answers. It might allocate some temporary Objects on the stack. It may optimize some variables or method calls t...
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How is Perl's @INC constructed? (aka What are all the ways of affecting where Perl modules are searc

... don't forget PERLOPT, where you can set -I. Also, things such as base.pm and local::lib use the things you've listed implicitly. – brian d foy Mar 26 '10 at 21:30 1 ...
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C99 stdint.h header and MS Visual Studio

... typedef __int32 int32_t; typedef unsigned __int32 uint32_t; typedef __int64 int64_t; typedef unsigned __int64 uint64_t; #else #include <stdint.h> #endif share | improve this answer ...
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Which is faster: while(1) or while(2)?

...than while(2), for a human to read! If I see while(1) in an unfamiliar codebase, I immediately know what the author intended, and my eyeballs can continue to the next line. If I see while(2), I'll probably halt in my tracks and try to figure out why the author didn't write while(1). Did the author'...
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通信连接组件 · App Inventor 2 中文网

... 串口通信器 指导 Web客户端 指导 图片与 Base64 互转:图片处理组件 KIO4_Base64 拓展:更强大的图像Base64编解码工具,解码后的图像可写入到文件 MQTT客户端 二进制 指导 二进制数据专题:各...
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jsoncpp 不能处理__int64(long long)类型数据 - C/C++ - 清泛网 - 专注C/C++及内核技术

jsoncpp 不能处理__int64(long long)类型数据jsoncpp,是一个c++的解析和生成json的开源工具。如果你的c++程序需要解析或生成json,它会使这个过程变得很简单!但是,今天在用jsoncpp进...jsoncpp,是一个c++的解析和生成json的开源工具。如...
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libunwind链接时报错:undefined reference to `_Ux86_64_init_local\' - ...

libunwind链接时报错:undefined reference to `_Ux86_64_init_local'编译安装libunwind后,代码编译链接时报错:undefined reference to `_Ux86_64_init_local& 39;,链接选项加了 -lunwind,仍然报错。原因:编译出来的libunwind拆分成了很多个 编译安装libunwi...
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Where are my postgres *.conf files?

...ntu 8.04 after update. Used EnterpriseDB package. I can connect to the database locally, I see system DB postgres but I can't configure it because I can't find config files. Searched through entire hard drive and found only samples like pg_hba.conf.sample ...
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best practice to generate random token for forgot password

... I made a varchar(64) field in my sql database to store this token. I set $length to 64, but the string returned is 128 characters long. How can I get a string with a fixed size (here, 64 then) ? – gordie Feb 22 '16 at 19:12 ...
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Unable to load config info from /usr/local/ssl/openssl.cnf on Windows

... Or C:\OpenSSL-Win64\bin\openssl.cfg in 64bits systems – borjab Nov 13 '14 at 9:59 13 ...