大约有 43,000 项符合查询结果（耗时：0.0266秒） [XML]
How can I repeat a character in Bash?
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410
You can use:
printf '=%.0s' {1..100}
How this works:
Bash expands {1..100} so the command b...
Best way to check if object exists in Entity Framework?
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answered Jan 4 '10 at 1:04
Alex AngasAlex Angas
55.5k3939 gold badges128128 silver badges201201 bronze badges
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Possible heap pollution via varargs parameter
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edited Jan 27 '19 at 10:21
answered Sep 17 '12 at 15:16
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Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?
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10
Yes. With -ffast-math it is doing such optimization. Good idea! But since our code concerns more accuracy than the speed, it might be bette...
Accessing a Dictionary.Keys Key through a numeric index
...tion(mydict.Count -1)
– Falanwe
Jun 10 '16 at 16:28
1
This is scary... but helpful to me since I ...
Is there a range class in C++11 for use with range based for loops?
...};
Test code:
int main() {
int m, n;
std::istringstream in("10 20");
if ( in >> m >> n ) //using in, because std::cin cannot be used at coliru.
{
if ( m > n ) std::swap(m,n);
for (auto i : range(m,n))
{
std::cout <&l...
Pattern to avoid nested try catch blocks?
...1
AniAni
100k2020 gold badges236236 silver badges290290 bronze badges
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Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
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105
This thread mentions:
If you don't remember the empty tree sha1, you can always derive it ...
How can I remove time from date with Moment.js?
...was then the start of the previous day. Fixed with moment(moment.utc('2013-10-29T00:00:00+00:00').startOf('day').format('LL')).startOf('day').toDate()
– colllin
Nov 6 '13 at 5:37
3...
How to get a float result by dividing two integer values using T-SQL?
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Supreme DolphinSupreme Dolphin
1,01099 silver badges1818 bronze badges
4
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