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What is the difference between std::array and std::vector? When do you use one over other? [duplicat
What is the difference between std::array and std::vector ? When do you use one over other?
6 Answers
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Undo “git add ”?
... i almost deleted my whole folder :S after this... doing a git reset HEAD folder fixed everything... but before doing this, do a git status folder, and make sure it says that it 'deleted' all the files on that folder
– Bengalaa
Nov 24 '16 at 0:52
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Troubleshooting “Illegal mix of collations” error in mysql
...uses another error: COLLATION 'utf8_general_ci' is not valid for CHARACTER SET 'latin1'' - even if you do not have a column with CHARACTER SET 'latin1'! The solution is to use the BINARY cast. See also this question
– Mel_T
Oct 22 '19 at 9:15
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Python: Get the first character of the first string in a list?
... around the two conflicting worlds of Python's "list slicing, indexing, subsetting" and then Numpy's "masking, slicing, subsetting, indexing, then numpy's enhanced fancy indexing".
These two videos cleared things up for me:
"Losing your Loops, Fast Numerical Computing with NumPy" by PyCon 2015:
ht...
python dataframe pandas drop column using int
I understand that to drop a column you use df.drop('column name', axis=1). Is there a way to drop a column using a numerical index instead of the column name?
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PHP cURL HTTP CODE return 0
...OPT_TIMEOUT => 120,
CURLOPT_MAXREDIRS => 10,
);
curl_setopt_array( $ch, $options );
$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
if ( $httpCode != 200 ){
echo "Return code is {$httpCode} \n"
.curl_error($ch);
} else {
echo "&l...
Get the short Git version hash
...=8 HEAD to get the 8 character length that is used by GitLab. You can also set core.abbrev to 8 for a specific git repo with a command like git config core.abbrev 8 Source
– n8felton
Nov 25 '19 at 13:29
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C# Interfaces. Implicit implementation versus Explicit implementation
...h IEnumerator<T>.Current, IEnumerable<T>.GetEnumerator(), and ISet<T>.Add(T). This is mentioned in another answer.
– phoog
May 20 at 22:13
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What really happens in a try { return x; } finally { x = null; } statement?
...finally block will be visible on return" is if the StringBuilder object is set to null in the finally block, in which case a non-null object is returned.
– Nick
Sep 10 '13 at 4:02
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PHP script - detect whether running under linux or Windows?
I have a PHP script that may be placed on a windows system or a linux system. I need to run different commands in either case.
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