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Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4
...ake sense.
C++11 draft N3337: §5.4:1
If during the evaluation of an expression, the result is not mathematically defined or not in the range of
representable values for its type, the behavior is undefined. [ Note: most existing implementations of C++
ignore integer overflows. Treatment ...
How to sort an array by a date property
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the first eg syntax gives error on angular7 : The left-hand side of an arithmetic operation must be of type 'any', 'number', 'bigint' or an enum type
– SURENDRANATH S
Jan 2 at 13:05
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How to free memory in Java?
... the garbage collector.
This memory management whitepaper (PDF) may help explain what's going on.
You can also call System.gc() to suggest that the garbage collector run immediately. However, the Java Runtime makes the final decision, not your code.
According to the Java documentation,
Call...
How to equalize the scales of x-axis and y-axis in Python matplotlib?
...i to do this:
from matplotlib import pyplot as plt
plt.plot(range(5))
plt.xlim(-3, 3)
plt.ylim(-3, 3)
plt.gca().set_aspect('equal', adjustable='box')
plt.draw()
doc for set_aspect
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Combine two data frames by rows (rbind) when they have different sets of columns
...Hadley: "Yes, all dplyr methods ignore rownames."
– zx8754
Dec 7 '17 at 9:11
Here is a link to documentation: rdocumen...
Numpy: find first index of value fast
How can I find the index of the first occurrence of a number in a Numpy array?
Speed is important to me. I am not interested in the following answers because they scan the whole array and don't stop when they find the first occurrence:
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Should I use 'has_key()' or 'in' on Python dicts?
...in is definitely more pythonic.
In fact has_key() was removed in Python 3.x.
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while (1) vs. while(True) — Why is there a difference (in python 2 bytecode)?
... a speed difference? , I decided to run a similar comparison in python. I expected that the compiler would generate the same byte code for while(True): pass and while(1): pass , but this is actually not the case in python2.7.
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How do I make Git ignore file mode (chmod) changes?
...fileMode false
From git-config(1):
core.fileMode
Tells Git if the executable bit of files in the working tree
is to be honored.
Some filesystems lose the executable bit when a file that is
marked as executable is checked out, or checks out a
non-executable file with executab...
What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...
GCC has:
-- Built-in Function: int __builtin_clz (unsigned int x)
Returns the number of leading 0-bits in X, starting at the most
significant bit position. If X is 0, the result is undefined.
-- Built-in Function: int __builtin_clzl (unsigned long)
Similar to `__builtin...