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Determining if a number is either a multiple of ten or within a particular set of ranges
...iven a better idea of what you are doing, I'd write the second one as:
int getRow(int num) {
return (num - 1) / 10;
}
if (getRow(num) % 2 == 0) {
}
It's the same logic, but by using the function we get a clearer idea of what it means.
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C# Error: Parent does not contain a constructor that takes 0 arguments
...
To correct the situation, you need to add an explicit call:
public Child(int i) : base(i)
{
Console.WriteLine("child");
}
Or, you can just add a parameterless parent constructor:
protected Parent() { }
share
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How do you automatically resize columns in a DataGridView control AND allow the user to resize the c
...ode.Fill;
//datagrid has calculated it's widths so we can store them
for (int i = 0; i <= grd.Columns.Count - 1; i++) {
//store autosized widths
int colw = grd.Columns[i].Width;
//remove autosizing
grd.Columns[i].AutoSizeMode = DataGridViewAutoSizeColumnMode.None;
//set width...
Will strlen be calculated multiple times if used in a loop condition?
...ange, but I personally wouldn't rely on that.
I'd do something like
for (int i = 0, n = strlen(ss); i < n; ++i)
or possibly
for (int i = 0; ss[i]; ++i)
as long as the string isn't going to change length during the iteration. If it might, then you'll need to either call strlen() each time, ...
What datatype to use when storing latitude and longitude data in SQL databases? [duplicate]
...itudes go from -90 to 90 degrees...so only need 2 places left of decimal point...
– dotjoe
Apr 10 '15 at 19:21
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show 7 more comments
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When should I use the HashSet type?
... contradicts what you say about order not being a property of a set - or points out to a misunderstanding from the development team.
– Veverke
Aug 3 '16 at 16:07
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Java: using switch statement with enum under subclass
... the case statement so it can only be one enum.
– sprinter
Dec 23 '15 at 1:49
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show 4 more comments
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How to get the current directory in a C program?
...ing at opendir() and telldir() , but telldir() returns a off_t (long int) , so it really doesn't help me.
6 Answers
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Why does Popen.communicate() return b'hi\n' instead of 'hi'?
...ing of the bytes you received from the subprocess, you can use decode() to convert them into a printable str:
>>> print(b'hi\n'.decode('ascii'))
hi
Of course, this specific example only works if you actually are receiving ASCII from the subprocess. If it's not ASCII, you'll get an excep...
How can I catch a ctrl-c event?
....h>
#include <stdio.h>
#include <unistd.h>
void my_handler(int s){
printf("Caught signal %d\n",s);
exit(1);
}
int main(int argc,char** argv)
{
struct sigaction sigIntHandler;
sigIntHandler.sa_handler = my_handler;
sigemptyset(&sigIntHandler.sa_...