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Why does an overridden function in the derived class hide other overloads of the base class?
... virtual void copy(Base* p) { x = p-> x; }
};
class Derived{
int xx;
public:
virtual void copy(Derived* p) { xx = p->xx; Base::copy(p); }
};
void f(Base a, Derived b)
{
a.copy(&b); // ok: copy Base part of b
b.copy(&a); // error: copy(Base*) is hidden by copy(Derive...
How to evaluate http response codes from bash/shell script?
...not show the final request status if the result of the first request is a 3XX. For example if the returned value is a 301 redirect, then this script just stops there. If you add -IL, then you can get the final status. If you want to show all HTTP statuses for all requests, use my example below.
...
Is there a way to 'uniq' by column?
...field 1
Test result:
overflow@domain2.com,2009-11-27 00:58:29.793000000,xx3.net,255.255.255.0
stack2@domain.com,2009-11-27 01:05:47.893000000,xx2.net,127.0.0.1
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How do I clear/delete the current line in terminal?
...l + L
Toggle between the start of line and current cursor position: Ctrl + XX
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When to use the different log levels
...eeds. Sometimes it might be fatal, sometimes mearly a warning. If I got a 4xx from a critical service I depend on and cant continue it would be an Error/Fatal for my designs. If I was trying to cache some data for later use, but could live without it it would be a WARN. The only time I see it being ...
内存调试技巧：C 语言最大难点揭秘 - C/C++ - 清泛网 - 专注C/C++及内核技术
...序，并且很少有开发团队对其制定明确的管理计划。但好消息是，它们并不怎么神秘。引言
C 和 C++ 程序中的内存错误非常有害：它们很常见，并且可能导致严重的后果。来自计算机应急响应小组（请参见参考资料）和供应商的...
Lombok is not generating getter and setter
...th of where your IDE is installed>
example usage:
java -jar lombok-x.xx.xx.jar install ~/Downloads/spring-tool-suite-3.9.1.RELEASE-e4.7.1a-linux-gtk-x86_64/sts-bundle/sts-3.9.1.RELEASE/
the above command basically makes a configuration update in your IDE .ini or configuration file something ...
Eclipse error: 'Failed to create the Java Virtual Machine'
...eclipse.ini and lower the amount of memory that is being allocated to -Xmx XXMaxPermSize I changed mine to -Xmx512m and XXMaxPermSize256m
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RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com
...t allowed to coexist with any other data. In
other words, if suzy.podunk.xx is an alias for sue.podunk.xx, you
can't also have an MX record for suzy.podunk.edu, or an A record, or
even a TXT record. Especially do not try to combine CNAMEs and NS
records like this!:
podunk.xx. ...
What is a wrapper class?
...y code documentation I see evident Facade method, described as "Wrapper to XX::yy method" or a little adiction like "Wrapper to XX::yy method with exception handling".
– Peter Krauss
Jul 28 '13 at 18:16
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