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Finding the type of an object in C++
I have a class A and another class that inherits from it, B. I am overriding a function that accepts an object of type A as a parameter, so I have to accept an A. However, I later call functions that only B has, so I want to return false and not proceed if the object passed is not of type B.
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Python Create unix timestamp five minutes in the future
I have to create an "Expires" value 5 minutes in the future, but I have to supply it in UNIX Timestamp format. I have this so far, but it seems like a hack.
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Vim: insert the same characters across multiple lines
Sometimes I want to edit a certain visual block of text across multiple lines.
12 Answers
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git: 'credential-cache' is not a git command
I followed these instructions to the letter, including the part about password caching. It seems like the instructions are wrong, because every time I git push origin master I get this error:
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What is “git remote add …” and “git push origin master”?
... Mark LongairMark Longair
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How do I fit an image (img) inside a div and keep the aspect ratio?
I have a 48x48 div and inside it there is an img element, I want to fit it into the div without losing any part, in the mean time the ratio is kept, is it achievable using html and css?
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python list in sql query as parameter
I have a python list, say l
15 Answers
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How to select rows with no matching entry in another table?
I'm doing some maintenance work on a database application and I've discovered that, joy of joys, even though values from one table are being used in the style of foreign keys, there's no foreign key constraints on the tables.
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UnicodeDecodeError: 'utf8' codec can't decode byte 0x9c
I have a socket server that is supposed to receive UTF-8 valid characters from clients.
9 Answers
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Sending email with PHP from an SMTP server
... txyojitxyoji
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