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List changes unexpectedly after assignment. How do I clone or copy it to prevent this?
... Georgy
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answered Apr 10 '10 at 10:16
cryocryo
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std::vector performance regression when enabling C++11
...n ( +- 0.52% ) [88.72%]
37,697,368 branches # 1064.092 M/sec ( +- 0.52% ) [88.75%]
26,700 branch-misses # 0.07% of all branches ( +- 3.91% ) [83.64%]
0.035943226 seconds time elapsed ...
STL or Qt containers?
...at e.g. QVector uses int as its index, thus limiting 31-bit sizes (even on 64-bit systems). Moreover, it can't even store INT_MAX elements of size larger than 1 byte. E.g. the largest .size() I could have of QVector<float> on x86_64 Linux gcc was 536870907 elements (2²⁹-5), while std::vecto...
Is SHA-1 secure for password storage?
...tions.
About SHA-1 cost:
The elementary cost of SHA-1 is about hashing a 64-byte block. That's how SHA-1 works: data is padded, then split into 64-byte blocks. The cost of processing a single block is about 500 clock cycles on an Intel Core2 system, and that's for a single core. MD5 and MD4 are fa...
What's the need of array with zero elements?
...xample_large_s
{
u32 first; // align to CL
u32 data;
....
u64 *second; // align to second CL after the first one
....
};
In code you can declare them using GCC extensions like:
__attribute__((aligned(CACHE_LINE_BYTES)))
But you still want to make sure this is enforced in ru...
What is RSS and VSZ in Linux memory management
...out 0x1000000000 0x200000000
echo $?
sudo dmesg
where:
0x1000000000 == 64GiB: 2x my computer's physical RAM of 32GiB
0x200000000 == 8GiB: print the memory every 8GiB, so we should get 4 prints before the crash at around 32GiB
echo 1 | sudo tee /proc/sys/vm/overcommit_memory: required for Linux ...
Select which href ends with some string
...
Brandon
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answered Feb 29 '12 at 8:27
SumitSumit
...
c# why can't a nullable int be assigned null as a value [duplicate]
...riable = (!string.IsNullOrEmpty(cbLong.SelectedItem.Value)) ? Convert.ToInt64(cbLong.SelectedItem.Value) : (long?)null;
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What is the best way to measure execution time of a function? [duplicate]
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ctackectacke
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a...
Executing command line programs from within python [duplicate]
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dF.dF.
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