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What is the most efficient way of finding all the factors of a number in Python?
Can someone explain to me an efficient way of finding all the factors of a number in Python (2.7)?
22 Answers
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How to track down a “double free or corruption” error
When I run my (C++) program it crashes with this error.
8 Answers
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How to count the number of true elements in a NumPy bool array
I have a NumPy array 'boolarr' of boolean type. I want to count the number of elements whose values are True . Is there a NumPy or Python routine dedicated for this task? Or, do I need to iterate over the elements in my script?
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Optional Parameters with C++ Macros
Is there some way of getting optional parameters with C++ Macros? Some sort of overloading would be nice too.
14 Answers
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How can I shrink the drawable on a button?
how can I make the drawable on a button smaller? The icon is too big, actually higher than the button. This is the code I am using:
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How to check if an int is a null
I have an object called Person .
8 Answers
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What's the difference between “groups” and “captures” in .NET regular expressions?
I'm a little fuzzy on what the difference between a "group" and a "capture" are when it comes to .NET's regular expression language. Consider the following C# code:
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How to configure PostgreSQL to accept all incoming connections
I've got a PostgreSQL data base that I'd like to configure to accept all incoming connections regardless of the source IP address. How can this be configured in the pg_hba.conf file? I'm using postgreSQL version 8.4.
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Convert RGBA PNG to RGB with PIL
I'm using PIL to convert a transparent PNG image uploaded with Django to a JPG file. The output looks broken.
7 Answers
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typedef fixed length array
I have to define a 24-bit data type.I am using char[3] to represent the type. Can I typedef char[3] to type24 ? I tried it in a code sample. I put typedef char[3] type24; in my header file. The compiler did not complain about it. But when I defined a function void foo(type24 val) {} in my C...