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uint8_t vs unsigned char
...racter at every position -- in other words that each element of the string/array is an arbitrary integer that one shouldn't make any semantic assumptions about. Of course all C programmers know this, but it may push beginners to ask the right questions.
– tne
J...
Why is quicksort better than mergesort?
...rt: If we are going with random pivot, the call stack has fragments of the array partitioned in a random way. This requires random access. However, for each call in the stack, both left and right pointers move sequentially. I am assuming these would be kept in the cache. The swaps are operations ag...
Running bash script from within python
...eter: subprocess.call("sleep.sh 10") will not work, you must pass it as an array: subprocess.call(["sleep.sh", 10])
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Declaring pointers; asterisk on the left or right of the space between the type and name? [duplicate
...f pointer] and somePtr remains to be the name. We do something similar for arrays when we go to place the square brackets on the type side as well (i.e. byte[]). But to be honest, if you were to ask me how I write my pointers, I'd say I currently still prefer to write them as someType *somePtr :) To...
Convert Object to JSON string
...tion(event){
event.preventDefault();
var formData = $("form").serializeArray(); // Create array of object
var jsonConvertedData = JSON.stringify(formData); // Convert to json
consol.log(jsonConvertedData);
});
You can validate json data using http://jsonlint.com
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How to check for file lock? [duplicate]
... if (res == ERROR_MORE_DATA)
{
// Create an array to store the process results
RM_PROCESS_INFO[] processInfo = new RM_PROCESS_INFO[pnProcInfoNeeded];
pnProcInfo = pnProcInfoNeeded;
// Get the list
res = R...
how do I insert a column at a specific column index in pandas?
... 2 5
2 3 6
idx = 0
new_col = [7, 8, 9] # can be a list, a Series, an array or a scalar
df.insert(loc=idx, column='A', value=new_col)
df
Out:
A B C
0 7 1 4
1 8 2 5
2 9 3 6
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How to concatenate text from multiple rows into a single text string in SQL server?
... ' in attributes as well. It's not GROUP_CONCAT(), string_agg(), array_agg(), listagg(), etc. even if you can kind of make it do that. We should be spending our time demanding Microsoft implement a proper function.
– Bacon Bits
Mar 23 '15 at 14:15
...
Sorting HashMap by values [duplicate]
...<Integer, String> passedMap) {
List<Integer> mapKeys = new ArrayList<>(passedMap.keySet());
List<String> mapValues = new ArrayList<>(passedMap.values());
Collections.sort(mapValues);
Collections.sort(mapKeys);
LinkedHashMap<Integer, String> so...
When do I really need to use atomic instead of bool? [duplicate]
...hreads, there'd be mechanisms like release-stores that only made a certain array or other object globally visible, not every other operation before that point (including all non-atomic ops). On coherent systems, release stores just have to wait for preceding in-flight loads/stores to complete and c...