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Insert new column into table in sqlite?
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answered Nov 23 '10 at 7:59
RaceimaztionRaceimaztion
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Create folder with batch but only if it doesn't already exist
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631
You just use this: if not exist "C:\VTS\" mkdir C:\VTS it wll create a directory only if the fo...
Input from the keyboard in command line application
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138
The correct way to do this is to use readLine, from the Swift Standard Library.
Example:
let ...
Do zombies exist … in .NET?
...ombie thread in .NET?
They sure do, look, I made one!
[DllImport("kernel32.dll")]
private static extern void ExitThread(uint dwExitCode);
static void Main(string[] args)
{
new Thread(Target).Start();
Console.ReadLine();
}
private static void Target()
{
using (var file = File.Open("t...
Java FileReader encoding issue
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253
Yes, you need to specify the encoding of the file you want to read.
Yes, this means that you ha...
汇编语言超浓缩教程（汇编入门必备） - C/C++ - 清泛网 - 专注C/C++及内核技术
...脑由1981年推出至今，其CPU发展过程为：8086→80286→80386→80486→PENTIUM →……，还有AMD、CYRIX等旁支。后面兼容前面CPU的功能，只不过多了些指令（如多能奔腾的MMX指令集）、增大了寄存器（如386的32位EAX）、增多了寄...
Query grants for a table in postgres
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markusmarkus
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What is the difference between C++ and Visual C++? [duplicate]
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Joaquin Marcher
17322 silver badges1212 bronze badges
answered Jun 9 '09 at 10:49
PimPim
94955 s...
C library function to perform sort
...;
return 0;
}
int main(int argc, char* argv[])
{
int x[] = {4,5,2,3,1,0,9,8,6,7};
qsort (x, sizeof(x)/sizeof(*x), sizeof(*x), comp);
for (int i = 0 ; i < 10 ; i++)
printf ("%d ", x[i]);
return 0;
}
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List comprehension: Returning two (or more) items for each item
...: x ** 2
>>> list(chain.from_iterable((f(x), g(x)) for x in range(3)))
[2, 0, 3, 1, 4, 4]
Timings:
from timeit import timeit
f = lambda x: x + 2
g = lambda x: x ** 2
def fg(x):
yield f(x)
yield g(x)
print timeit(stmt='list(chain.from_iterable((f(x), g(x)) for x in range(3)))',...