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How do I force make/GCC to show me the commands?
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C++ performance challenge: integer to std::string conversion
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Connecting overloaded signals and slots in Qt 5
I'm having trouble getting to grips with the new signal/slot syntax (using pointer to member function) in Qt 5, as described in New Signal Slot Syntax . I tried changing this:
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git error: failed to push some refs to remote
For some reason, I can't push now, whereas I could do it yesterday.
Maybe I messed up with configs or something.
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How do I parse a string to a float or int?
In Python, how can I parse a numeric string like "545.2222" to its corresponding float value, 545.2222 ? Or parse the string "31" to an integer, 31 ?
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Best way to convert strings to symbols in hash
What's the (fastest/cleanest/straightforward) way to convert all keys in a hash from strings to symbols in Ruby?
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Postgresql: password authentication failed for user “postgres”
I have installed PostgreSQL 8.4, Postgres client and Pgadmin 3. Authentication failed for user "postgres" for both console client and Pgadmin. I have typed user as "postgres" and password "postgres", because it worked before. But now authentication is failed. I did it before a couple of times withou...
How do I merge a list of dicts into a single dict?
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Printing the value of a variable in SQL Developer
I wanted to print the value of a particular variable which is inside an anonymous block. I am using Oracle SQL Developer. I tried using dbms_output.put_line . But it is not working. The code which I am using is shown below.
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