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Please explain the exec() function and its family
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int execl(const char *path, const char *arg, ...);
int execlp(const char *file, const char *arg, ...);
int execle(const char *path, const char *arg, ..., char * const envp[]);
int execv(const char *path, char *const argv[]);
int execvp(const char *file, char *const argv[]);
int execvpe(const char *...
Why return NotImplemented instead of raising NotImplementedError
... binary special methods (e.g. __eq__(),
__lt__(), __add__(), __rsub__(), etc.) to indicate that the operation is not implemented with respect to the other type
exception NotImplementedError
[...] In user defined base
classes, abstract methods should raise this exception when they
require...
UIButton: how to center an image and a text using imageEdgeInsets and titleEdgeInsets?
...t, configure the text of titleLabel (because of styles, i.e, bold, italic, etc). Then, use setTitleEdgeInsets considering the width of your image:
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[button setTitle:title forState:UIControlStateNormal];
[button.titleLabel set...
How do you see the entire command history in interactive Python?
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If you want to write the history to a file:
import readline
readline.write_history_file('python_history.txt')
The help function gives:
Help on built-in function write_history_file in module readline:
write_history_file(...)
write_history_file([filename])...
Setting property 'source' to 'org.eclipse.jst.jee.server:JSFTut' did not find a matching property
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I've noticed that if you have the server.xml file open it does not add the context back in. I just stopped the server and closed the server.xml file then re-added the project. THought I would mentioned it in case anyone else runs into the same problem.
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What is Android keystore file, and what is it used for?
...t particularly I am interested in it's use for Android. What is a keystore file, and what is it used for?
4 Answers
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In plain English, what does “git reset” do?
...t --mixed. It resets the index, but not the work tree. This means all your files are intact, but any differences between the original commit and the one you reset to will show up as local modifications (or untracked files) with git status. Use this when you realize you made some bad commits, but you...
How to use glyphicons in bootstrap 3.0
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The icons (glyphicons) are now contained in a separate css file...
The markup has changed to:
<i class="glyphicon glyphicon-search"></i>
or
<span class="glyphicon glyphicon-search"></span>
Here is a helpful list of changes for Bootstrap 3: http://bootpl...
Passing arguments to “make run”
...is
make run arg1=asdf
then use them like this
run: ./prog $(arg1)
etc
References for make
Microsoft's NMake
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Is delete this allowed?
...he call started, possibly connect more people if you do a conference call, etc.) When the last people on the call hang up, the phone_call object does its final book-keeping (e.g., adds an entry to the database to say when you hung up, so they can compute how long your call was) and then destroys its...