大约有 5,400 项符合查询结果（耗时：0.0360秒） [XML]
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...
Select which href ends with some string
...
Brandon
64.2k2929 gold badges186186 silver badges217217 bronze badges
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;
share
|
improve this answer
|
follow
|...
What is the best way to measure execution time of a function? [duplicate]
...
ctackectacke
64.5k1717 gold badges9090 silver badges149149 bronze badges
a...
Executing command line programs from within python [duplicate]
...8
dF.dF.
64.2k2727 gold badges123123 silver badges134134 bronze badges
...
Sorting dictionary keys in python [duplicate]
...3
dF.dF.
64.2k2727 gold badges123123 silver badges134134 bronze badges
...
Is there a Wikipedia API?
...
Hank GayHank Gay
64.2k2929 gold badges144144 silver badges216216 bronze badges
...