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What's the difference between size_t and int in C++?
...ame as unsigned int, which can lead to programming errors, particularly as 64-bit architectures become more prevalent.
Also, check Why size_t matters
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How to Calculate Execution Time of a Code Snippet in C++
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You can use this function I wrote. You call GetTimeMs64(), and it returns the number of milliseconds elapsed since the unix epoch using the system clock - the just like time(NULL), except in milliseconds.
It works on both windows and linux; it is thread safe.
Note that the gr...
Why don't C++ compilers define operator== and operator!=?
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96
Even in C++20, the compiler still won't implicitly generate operator== for you
struct foo
{
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SQL Server Configuration Manager not found
...an directly browse it using this paths..
SQL Server 2019 C:\Windows\SysWOW64\SQLServerManager15.msc
SQL Server 2017 C:\Windows\SysWOW64\SQLServerManager14.msc
SQL Server 2016 C:\Windows\SysWOW64\SQLServerManager13.msc
SQL Server 2014 C:\Windows\SysWOW64\SQLServerManager12.msc
SQL Server 2012 ...
Find the most frequent number in a numpy vector
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3
>>> %timeit numpy.bincount(a).argmax()
100 loops, best of 3: 2.84 ms per loop
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>>> import scipy.stats
>>> scipy.stats.mode(a)[0][0]
3.0
>>> %timeit scipy.stats.mode(a)[0][0]
10000 loops, best of 3: 172 µs per loop
>>>
>>> from c...
postgresql port confusion 5433 or 5432?
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RisadinhaRisadinha
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Is there a faster/shorter way to initialize variables in a Rust struct?
... a new type that implements a default value of -1 and use that instead of i64 in your struct. (I haven't tested that, but it should work).
However, I'd suggest to slightly change your data structure and use Option<i64> instead of i64. I don't know the context of your code, but it looks like y...
How to apply a function to two columns of Pandas dataframe
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A simple solution is:
df['col_3'] = df[['col_1','col_2']].apply(lambda x: f(*x), axis=1)
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Rounding up to next power of 2
... that time?). From : jameshfisher.com/2018/03/30/round-up-power-2.html uint64_t next_pow2(uint64_t x) { return x == 1 ? 1 : 1<<(64-__builtin_clzl(x-1)); } And for 32 bit : uint32_t next_pow2(uint32_t x) { return x == 1 ? 1 : 1<<(32-__builtin_clz(x-1)); } That is if you use GCC (and Cla...
Accept function as parameter in PHP
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zombatzombat
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