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Do I need to explicitly call the base virtual destructor?
...s question might be related and help questions/15265106/c-a-missing-vtable-error.
– Paul-Sebastian Manole
Dec 20 '14 at 20:16
...
How do I get both STDOUT and STDERR to go to the terminal and a log file?
...oth in the files and in the command's output.
If the first tee writes any errors, they'll show up in both the stderr file and in the command's stderr, if the second tee writes any errors, they'll only show up only in the terminal's stderr.
...
Swift: Testing optionals for nil
... : NSString?
if xyz {
// Do something using `xyz`.
}
This produces an error:
does not conform to protocol 'BooleanType.Protocol'
You have to use one of these forms:
if xyz != nil {
// Do something using `xyz`.
}
if let xy = xyz {
// Do something using `xy`.
}
...
MVC 5 Seed Users and Roles
...when it comes to the line manager.AddToRole(user.Id, "AppAdmin") I get the error message "UserId not found." If you have any idea what I'm missing I'd much appreciate the information.
– Tom Regan
Feb 9 '15 at 1:36
...
Find all packages installed with easy_install/pip?
...reeze to be reliable in scripts, whereas pip list will generate unexpected errors when being used with pipes.
– Dale Anderson
Jan 18 '17 at 19:54
2
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Can I see changes before I save my file in Vim?
...
@Dergachev I get the error fatal: bad flag '-' used after filename when I run :w !git diff % -.
– Grayscale
Jul 26 '18 at 3:08
...
How to send a simple string between two programs using pipes?
...
printf("Received: %s\n", buf);
close(fd);
return 0;
}
Note: Error checking was omitted from the above code for simplicity.
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PHP mkdir: Permission denied problem
I am trying to create a directory with PHP mkdir function but I get an error as follows: Warning: mkdir() [function.mkdir]: Permission denied in ... . How to settle down the problem?
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Why not abstract fields?
...he final through the super constructor the compiler will give a warning an error, just like when an abstract method is not implemented.
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How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...ch other; one of them successfully INSERTs; the other gets a duplicate key error and does an UPDATE instead. The UPDATE blocks waiting for the INSERT to rollback or commit. When it rolls back, the UPDATE condition re-check matches zero rows, so even though the UPDATE commits it hasn't actually done ...