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Single quotes vs. double quotes in C or C++
...instance:
const uint32_t png_ihdr = 'IHDR';
The resulting constant (in GCC, which implements this) has the value you get by taking each character and shifting it up, so that 'I' ends up in the most significant bits of the 32-bit value. Obviously, you shouldn't rely on this if you are writing plat...
What techniques can be used to speed up C++ compilation times?
...ry. This is a good place for STL headers and other library include files.
ccache is another utility that takes advantage of caching techniques to speed things up.
Use Parallelism
Many compilers / IDEs support using multiple cores/CPUs to do compilation simultaneously. In GNU Make (usually used wi...
Deciding between HttpClient and WebClient
...ce there are things like report progress, custom URI scheme and making FTP calls that WebClient provides — but HttpClient doesn’t.
+--------------------------------------------+--------------------------------------------+
| WebClient | ...
App Inventor 2 中文网VIP专享内容 · App Inventor 2 中文网
... 【OCR识别】App Inventor 2 OCR 图片文字识别全方案总结
【FTP】App Inventor 2 FTP 上传下载全方案总结
【短信平台】App Inventor 2 接入阿里云短信服务，实现短信验证码功能
产品级技巧
【EXCEL】App Inventor 2 实现导出Excel全方案总...
【持续更新】App Inventor 2 中文拓展一览 - App Inventor 2 中文网 - 清泛...
...理
【蓝牙】BlueToothLE 拓展：低功耗蓝牙(BLE) Iot 专题
【FTP】App Inventor 2 FTP 上传下载全方案总结
【MD5、密码安全】Encrypt.Security 安全性扩展：MD5哈希，SHA1和SHA256哈希，AES加密/解密，RSA加密/解密，BASE64编码/解码
【AES加解密】M...
When to use dynamic vs. static libraries
...o2();
}
$$:~/static [37]> cat makefile
hello: hello.o libtest.a
cc -o hello hello.o -L. -ltest
hello.o: hello.c
cc -c hello.c -I`pwd`
libtest.a:foo.o foo2.o
ar cr libtest.a foo.o foo2.o
foo.o:foo.c
cc -c foo.c
foo2.o:foo.c
cc -c foo2.c
clean:
rm -f ...
How do I debug error ECONNRESET in Node.js?
...ole.log('Socket ON')
})
Start it up using v0.9.9 and then attempt to FTP to this server. I'm using FTP and port 21 only because I'm on Windows and have an FTP client, but no telnet client handy.
Then from the client side, just break the connection. (I'm just doing Ctrl-C)
You should see NO ...
How to change the default GCC compiler in Ubuntu?
I have installed gcc-3.3/g++-3.3 on ubuntu 11.04 which already has gcc/g++-4.4. So in my system both gcc-3.3 and 4.4 are available. I am able to call both compilers as I want. If I just call the command gcc then gcc-4.4 will get called. To call gcc-3.3, I have to use the command gcc-3.3 .
...
Service Temporarily Unavailable Magento?
...
You need to follow these steps:
Go to magento root directory via cPanel/FTP
In case of Magento1, you will find maintenance.flag and delete it
In case of Magento2, delete var/maintenance.flag
share
|
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Input and Output binary streams using JERSEY?
...e and serve JSON encoded data. But I have some situations where I need to accomplish the following:
10 Answers
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