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What is a handle in C++?
...sed in some lookup table.
A handle can be a pointer to, or into, a larger set of data.
It depends on how the code that uses the handle behaves. That determines the handle type.
The reason the term 'handle' is used is what is important. That indicates them as an identification or access type of ob...
How to convert CharSequence to String?
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@TheOnlyAnil, does calling setText(CharSequence) not do what you need?
– Mike Samuel
May 4 '15 at 20:31
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TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...standard ffs function which returns
* different values.
* - Created set_bit/clear_bit fuctions because they are not present
* on x86_64.
* - Added locking support + extra file target.h to show how to use it.
* - Added get_used_size function (REMOVED in 2.4)
* - Added rtl_realloc an...
Getting Git to work with a proxy server - fails with “Request timed out”
... this works for both http and https repos.
If you decide at any time to reset this proxy and work without proxy:
Command to use:
git config --global --unset http.proxy
Finally, to check the currently set proxy:
git config --global --get http.proxy
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How do I add a password to an OpenSSH private key that was generated without a password?
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I do not understand. The passphrase is set, I see when I try to change it again. But when I try to login to remote server it doesn't ask for this passphrase password, why?
– Luka
May 7 '18 at 16:51
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Get environment variable value in Dockerfile
...can build image with references even without --build-arg. Moreover you can set default value for the build arg.
– ALex_hha
Mar 23 '17 at 11:20
1
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M_PI works with math.h but not with cmath in Visual Studio
...ES to your compilation command line, or to define the macro in the project settings. This will drag the symbol to all reachable dark corners of include and source files leaving your source clean for multiple platforms. If you set it globally for the whole project, you will not forget it later in a n...
Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
...esystem quotas will prevent programs from filling the disk. Proper ulimit (setrlimit() in C) settings can protect against memory overuse and any fork bombs, as well as put a stop to CPU hogs. nice(1) can lower the priority of those programs so that the computer can be used for any tasks that are dee...
Can an array be top-level JSON-text?
... As of this newer RFC, "A JSON text is a sequence of tokens. The set of tokens includes six structural characters, strings, numbers, and three literal names."
– antak
Mar 10 '16 at 11:34
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iReport not starting using JRE 8
...understandable: this does not change your (or your company's) default Java settings, that is why i recommend it. This changes iReport's behaviour: iReport will search for the jdk you told it to search for instead of using default Java settings. No matter you will upgrade your Java in the future, iRe...