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What are the differences between a pointer variable and a reference variable in C++?
...lization:
int x = 5;
int y = 6;
int &r = x;
A pointer has its own memory address and size on the stack (4 bytes on x86), whereas a reference shares the same memory address (with the original variable) but also takes up some space on the stack. Since a reference has the same address as the ori...
How to input a regex in string.replace?
...
This tested snippet should do it:
import re
line = re.sub(r"</?\[\d+>", "", line)
Edit: Here's a commented version explaining how it works:
line = re.sub(r"""
(?x) # Use free-spacing mode.
< # Match a literal '<'
/? # Optionally match a...
Generating a list of which files changed between hg versions
...erate a list of which files changed between two revisions in a given directory in Mercurial.
2 Answers
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Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?
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The reason for first one working:
From MSDN:
In string concatenation operations,the C# compiler treats a null string the same as an empty string, but it does not convert the value of the original null string.
More information on the + ...
How to customize a requirements.txt for multiple environments?
...pment points to dependencies that are themselves in development. Likewise for Production. I need to deploy to Heroku which expects each branch's dependencies in a single file called 'requirements.txt'.
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Which Architecture patterns are used on Android? [closed]
I'm doing a small research of mobile platforms and I would like to know which design patterns are used in Android?
12 Answe...
onTouchListener warning: onTouch should call View#performClick when a click is detected
I have created a onTouchListener . Unfortunately onTouch() method throws me a warning:
5 Answers
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What is the difference between and ? [duplicate]
...t;\r\n");
out.write("</html>\r\n");
and this is what you will see for the used tag in the second JSP file :
org.apache.jasper.runtime.JspRuntimeLibrary.include(request, response, "reusable.html", out, false);
So now you know that the include directive inserts the source of reuse.html at t...
How can I detect if a selector returns null?
What is the best way to detect if a jQuery-selector returns an empty object.
If you do:
8 Answers
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Converting BigDecimal to Integer
...t number but it accepts Integer as parameter. I cannot change return types or variable types of both methods.
8 Answers
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