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How to find memory leak in a C++ code/project?
...lts in a memory leak:
char* str1 = new char [30];
char* str2 = new char [40];
strcpy(str1, "Memory leak");
str2 = str1; // Bad! Now the 40 bytes are impossible to free.
delete [] str2; // This deletes the 30 bytes.
delete [] str1; // Possible access violation. What a disaster!
4
Be careful ...
Using G++ to compile multiple .cpp and .h files
...h, except I just want to compile this tiny 2-file program I've written in 14 minutes, and I'd really prefer to spend 1 minute on writing a makefile instead of an hour setting up cmake.
– Przemek D
Mar 27 '19 at 7:33
...
Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)
...:
:peanut :butter :and :jelly
0 1 2 3 4
4 is still within the array, just barely; if you request 0 elements, you get the empty end of the array. But there is no index 5, so you can't slice from there.
When you do index (like array[4]), you are pointing at elem...
ggplot2 plot without axes, legends, etc
... Rufflewind
7,66211 gold badge3030 silver badges4848 bronze badges
answered Jul 1 '11 at 1:35
joranjoran
152k2525 gold badges3...
What is the instanceof operator in JavaScript?
... a string.
– JonH
Mar 15 '10 at 17:54
@Alon - It checks an object to see what type of object it is. Consider a person ...
Illegal pattern character 'T' when parsing a date string to java.util.Date
...
Update for Java 8 and higher
You can now simply do Instant.parse("2015-04-28T14:23:38.521Z") and get the correct thing now, especially since you should be using Instant instead of the broken java.util.Date with the most recent versions of Java.
You should be using DateTimeFormatter instead of S...
How to filter Pandas dataframe using 'in' and 'not in' like in SQL
...
DSMDSM
269k5050 gold badges494494 silver badges427427 bronze badges
2
...
How to find the kth smallest element in the union of two sorted arrays?
...g k), which is O(log N + log M).
Pseudo-code:
i = k/2
j = k - i
step = k/4
while step > 0
if a[i-1] > b[j-1]
i -= step
j += step
else
i += step
j -= step
step /= 2
if a[i-1] > b[j-1]
return a[i-1]
else
return b[j-1]
For the demonstrat...
How to use index in select statement?
... other posts below.
– Rast
Apr 28 '14 at 11:05
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