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How to forward declare a C++ template class?
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I haven't checked the standards, but this works on clang/gcc with -std=c++98 up to -std=c++17, so if it's not officially a standard then it looks to be unofficially so.
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Why can I use auto on a private type?
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To add to the other (good) answers, here's an example from C++98 that illustrates that the issue really doesn't have to do with auto at all
class Foo {
struct Bar { int i; };
public:
Bar Baz() { return Bar(); }
void Qaz(Bar) {}
};
int main() {
Foo f;
f.Qaz(f.Baz()); // Ok
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Execute unit tests serially (rather than in parallel)
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Mark AmeryMark Amery
98.9k4848 gold badges336336 silver badges379379 bronze badges
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Can't connect to MySQL server error 111 [closed]
...rewall installed either. Ran out of ideas.
– CoderGuy123
Oct 14 '16 at 3:49
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Adding a collaborator to my free GitHub account?
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123
Go to Manage Access page under settings (https://github.com/user/repo/settings/access) and add...
Failed to build gem native extension (installing Compass)
...by-2.1.2 as 1.9.3 is no longer being updated
– timelf123
Aug 13 '14 at 16:47
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Redirect stderr and stdout in Bash
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dirkgentlydirkgently
98.6k1616 gold badges119119 silver badges180180 bronze badges
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ERROR 1130 (HY000): Host '' is not allowed to connect to this MySQL server [duplicate]
...>use mysql
mysql>GRANT ALL ON *.* to root@'%' IDENTIFIED BY 'redhat@123';
mysql>FLUSH PRIVILEGES;
mysql> SELECT host FROM mysql.user WHERE User = 'root';
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Skip rows during csv import pandas
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5s 15s 20d 6s 14n 10s USGS 08041780 2018-05-06 00:00 CDT 1.98 A
It would be nice if there was a way to automatically skip the n'th row as well as the n'th line.
As a note, I was able to fix my issue with:
import pandas as pd
ds = pd.read_csv(fname, comment='#', sep='\t', heade...
How to get the current time in milliseconds from C in Linux?
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98
This can be achieved using the POSIX clock_gettime function.
In the current version of POSIX, ...