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Convert XLS to CSV on command line
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The code converts only the active worksheet. To select another worksheet, add the following line after the oExcel.Workbooks.Open line with the desired index of the worksheet (starts at 1): oBook.Worksheets(1).Activate
– humbads
Oct 3...
bool operator ++ and --
...ntil I've done ++ often enough to cause an overflow on it's own. Even with char as the type used and CHAR_BITS something low like 5, that's 32 times before this doesn't work any more (that's still argument enough for it being a bad practice, I'm not defending the practice, just explaining why it wor...
Specify multiple attribute selectors in CSS
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For concatenating it's:
input[name="Sex"][value="M"] {}
And for taking union it's:
input[name="Sex"], input[value="M"] {}
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Using $_POST to get select option value from HTML
I use select as below:
8 Answers
8
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Why should I declare a virtual destructor for an abstract class in C++?
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{
public:
virtual void DoFoo() = 0;
};
class Bar : public IFoo
{
char* dooby = NULL;
public:
virtual void DoFoo() { dooby = new char[10]; }
void ~Bar() { delete [] dooby; }
};
IFoo* baz = new Bar();
baz->DoFoo();
delete baz; // memory leak - dooby isn't deleted
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Force CloudFront distribution/file update
...Click on Blank Function (custom)
Step 3
Click on empty (stroked) box and select S3 from combo
Step 4
Select your Bucket (same as for CloudFront distribution)
Step 5
Set an Event Type to "Object Created (All)"
Step 6
Set Prefix and Suffix or leave it empty if you don't know what it is.
Step ...
How do you read a file into a list in Python? [duplicate]
...so, watch your backslashes in windows path names, as those are also escape chars in strings. You can use forward slashes or double backslashes instead.
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How to escape a pipe char in a code statement in a markdown table?
...taining pieces of code in Markdown. It works fine except when I put a pipe char (i.e. | ) between the backtick (i.e. ` ) chars.
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Regex, every non-alphanumeric character except white space or colon
... - matches all the letters
^ - negates them all - so you get - non numeric chars, non spaces and non colons
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keytool error :java.io.IoException:Incorrect AVA format
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Probably you entered illegal character(something like ,(comma)) in a field for Name, Organization or somewhere else.
Of course if you really want some charachter can be escaped with \ sign
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