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How to repeat a string a variable number of times in C++?
...way to repeat strings in C++ equivalent to the * operator in Python or the x operator in Perl. If you're repeating a single character, the two-argument constructor (as suggested by previous answers) works well:
std::string(5, '.')
This is a contrived example of how you might use an ostringstream ...
Git Push error: refusing to update checked out branch
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There are dozens of other scenarios, actually. For example, some of my repositories are just on my workstation and my laptop (not code, but notes I take). On each I have two branches, "workstation" and "laptop". On the workstation, I only check out "workstation", and I only pu...
How can I put a database under git (version control)?
...a database dump, and version control that instead. This way it is a flat text file.
Personally I suggest that you keep both a data dump, and a schema dump. This way using diff it becomes fairly easy to see what changed in the schema from revision to revision.
If you are making big changes, you sho...
Are typedef and #define the same in c?
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When things get "hairy", using the proper tool makes it right
#define FX_TYPE void (*)(int)
typedef void (*stdfx)(int);
void fx_typ(stdfx fx); /* ok */
void fx_def(FX_TYPE fx); /* error */
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How do I delete multiple rows in Entity Framework (without foreach)
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If you don't want to execute SQL directly calling DeleteObject in a loop is the best you can do today.
However you can execute SQL and still make it completely general purpose via an extension method, using the approach I describe here.
Althoug...
How to center text vertically with a large font-awesome icon?
Lets say I have a bootstrap button with a font-awesome icon and some text:
14 Answers
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Postgres - FATAL: database files are incompatible with server
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If you recently upgraded to 11 or 12 from 10.x you can run the below command to upgrade your postgres data directory retaining all data:
brew postgresql-upgrade-database
The above command is taken from the output of brew info postgres
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Reading CSV files using C#
... DataGrid and show corrupted lines of the CSV file in another grid. For example, show the lines that are shorter than 5 values in another grid. I'm trying to do that like this:
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How to get folder path from file path with CMD
... can get a lot more information using different modifiers:
%~I - expands %I removing any surrounding quotes (")
%~fI - expands %I to a fully qualified path name
%~dI - expands %I to a drive letter only
%~pI - expands %I to a path only
%~nI - expands %I to a file ...