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Do I need to manually close an ifstream?
Do I need to manually call close() when I use a std::ifstream ?
5 Answers
5
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What is Common Gateway Interface (CGI)?
CGI is a Common Gateway Interface. As the nam>me m> says, it is a "common" gateway interface for everything. It is so trivial and naive from the nam>me m>. I feel that I understood this and I felt this every tim>me m> I encountered this word. But frankly, I didn't. I'm still confused.
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How do I get SUM function in MySQL to return '0' if no values are found?
Say I have a simple function in MySQL:
4 Answers
4
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How do I increase the RAM and set up host-only networking in Vagrant?
I would like to increase the RAM to at least 1 GB and I would like to configure “Host-Only” networking to use "199.188.44.20".
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mongodb count num of distinct values per field/key
Is there a query for calculating how many distinct values a field contains in DB.
5 Answers
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Why use arm>me m>abi-v7a code over arm>me m>abi code?
In my current project I make use of multiple .so files. These are located at the arm>me m>abi and arm>me m>abi-v7a folder. Unfortunately one of the .so files is a 6MB and I need to reduce file size. Instead of having a fat APK file, I would like to use just the arm>me m>abi files and remove the arm>me m>abi-v7a folder....
Ruby, Difference between exec, system and %x() or Backticks
What is the difference between the following Ruby m>me m>thods?
3 Answers
3
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NULL vs nil in Objective-C
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nil should only be used in place of an id, what we Java and C++ programm>me m>rs would think of as a pointer to an object. Use NULL for non-object pointers.
Look at the declaration of that m>me m>thod:
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object
change:(NSDictionary *)cha...
SQL query to find record with ID not in another table
I have two tables with binding primary key in database and I desire to find a disjoint set between them. For example,
6 Ans...
Programmatically saving image to Django ImageField
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I have som>me m> code that fetches an image off the web and stores it in a model. The important bits are:
from django.core.files import File # you need this som>me m>where
import urllib
# The following actually resides in a m>me m>thod of my mo...