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When should I use perror(“…”) and fprintf(stderr, “…”)?
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113
Calling perror will give you the interpreted value of errno, which is a thread-local error val...
CURL to access a page that requires a login from a different page
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147
The web site likely uses cookies to store your session information. When you run
curl --user ...
When to use StringBuilder in Java [duplicate]
...ion in a loop, something like this,
String s = "";
for (int i = 0; i < 100; i++) {
s += ", " + i;
}
then you should use a StringBuilder (not StringBuffer) instead of a String, because it is much faster and consumes less memory.
If you have a single statement,
String s = "1, " + "2, " + "...
How to import module when module name has a '-' dash or hyphen in it?
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122
you can't. foo-bar is not an identifier. rename the file to foo_bar.py
Edit: If import is n...
using gitignore to ignore (but not delete) files
...o this directory, but still allow it to exist? I also need to do this for 1 file, but changes to that also show up in git status after .gitignore ing them. What should I do?
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jQuery - getting custom attribute from selected option
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12 Answers
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fatal: git-write-tree: error building trees
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edited Oct 3 '17 at 13:50
answered Apr 17 '13 at 9:19
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How to shrink the .git folder
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115
you should not delete all changes older than 30 days (i think it's somehow possible exploiting...
Laravel migration: unique key is too long, even if specified
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