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Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
...ependency chain depending on what the register allocator decided to do.
13 GB/s has a chain: popcnt-add-popcnt-popcnt → next iteration
15 GB/s has a chain: popcnt-add-popcnt-add → next iteration
20 GB/s has a chain: popcnt-popcnt → next iteration
26 GB/s has a chain: popcnt-popcnt → next i...
How do I convert between big-endian and little-endian values in C++?
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31 Answers
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Swift equivalent for MIN and MAX macros
... search.
– GoZoner
Jun 12 '14 at 14:35
7
@GoZoner Sometimes you just have to type it up in Xcode ...
Priority queue in .Net [closed]
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43
I like using the OrderedBag and OrderedSet classes in PowerCollections as priority queues.
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What is uint_fast32_t and why should it be used instead of the regular int and uint32_t?
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135
int may be as small as 16 bits on some platforms. It may not be sufficient for your applicatio...
How to print a int64_t type in C
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438
For int64_t type:
#include <inttypes.h>
int64_t t;
printf("%" PRId64 "\n", t);
for uin...
Concurrent HashSet in .NET Framework?
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edited Jun 13 at 12:26
John Smith
47855 silver badges1818 bronze badges
answered Sep 20 '1...
std::enable_if to conditionally compile a member function
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edited May 23 '17 at 12:10
Community♦
111 silver badge
answered Aug 7 '11 at 12:24
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How to solve Operator '!=' cannot be applied to operands of type 'T' and 'T' [duplicate]
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3 Answers
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Circle line-segment collision detection algorithm?
...'ve simplified the problem to 2D here, the solution we get applies also in 3D
to get:
Expand
x2 - 2xh + h2 + y2 - 2yk + k2 - r2 = 0
Plug
x = ex + tdx
y = ey + tdy
( ex + tdx )2 - 2( ex + tdx )h + h2 +
( ey + tdy )2 - 2( ey + tdy )k + k2 - r2 = 0
Explode
ex2 + 2extdx + t2dx2 - 2exh - 2tdxh + h2 ...