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__FILE__, __LINE__, and __FUNCTION__ usage in C++

...Y_FUNCTION__ when it's available for the extra class scoping. PS: static string getScopedClassMethod( string thePrettyFunction ) { size_t index = thePrettyFunction . find( "(" ); if ( index == string::npos ) return thePrettyFunction; /* Degenerate case */ thePrettyFunction . erase( in...
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C#: how to get first char of a string?

Can the first char of a string be retrieved by doing the following? 13 Answers 13 ...
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MySQL ERROR 1045 (28000): Access denied for user 'bill'@'localhost' (using password: YES)

...s as to why 'bill'@'localhost' matches ''@'localhost' like I was, an empty string effectively acts a wild card in MySQL's authentication algorithm. – Dean Or Aug 6 '13 at 4:14 2 ...
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App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 - App Invent...

...说明书,不要弄错以免烧坏硬件)一般来说,需要接线的端口有以下4个,无论哪款蓝牙硬件,也无论哪种其他硬件,这4个端口都是基本的存在:VCC(正极)、GND(接地负极)、TX、RX 交叉接线,参考接线如图:2、串口工具测试...
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C++ multiline string literal

... Well ... Sort of. The easiest is to just use the fact that adjacent string literals are concatenated by the compiler: const char *text = "This text is pretty long, but will be " "concatenated into just a single string. " "The disadvantage is that you have to quote " "each part, and n...
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How to enable local network users to access my WAMP sites?

... by default. Now you should edit the \wamp\bin\apache\apache{version}\conf\extra\httpd-vhosts.conf file. In WAMPServer3.0.6 and above there is actually a menu that will open this file in your editor left click wampmanager -> Apache -> httpd-vhost.conf just like the one that has always existse...
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How to convert a char array to a string?

Converting a C++ string to a char array is pretty straightorward using the c_str function of string and then doing strcpy . However, how to do the opposite? ...
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通过 ulimit 改善系统性能 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...rver 程序来说,它会为多个 client 程序请求创建多个 socket 端口给与响应。如果恰好有大量的 client 同时向 server 发出请求,那么此时 server 就会需要创建大量的 socket 连接。但在一个系统当中,往往需要限制单个 server 程序所能使...
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BestPractice - Transform first character of a string into lower case

I'd like to have a method that transforms the first character of a string into lower case. 11 Answers ...
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App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 · App Inventor 2 中文网

...明书,不要弄错以免烧坏硬件) 一般来说,需要接线的端口有以下4个,无论哪款蓝牙硬件,也无论哪种其他硬件,这4个端口都是基本的存在:VCC(正极)、GND(接地负极)、TX、RX 交叉接线,参考接线如图: 2、串口工具测...