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How do I look inside a Python object?
...nswered Jun 17 '09 at 10:28
Brandon E TaylorBrandon E Taylor
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std::string to char*
...g";
char *cstr = new char[str.length() + 1];
strcpy(cstr, str.c_str());
// do stuff
delete [] cstr;
Or in modern C++:
std::vector<char> cstr(str.c_str(), str.c_str() + str.size() + 1);
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sudo echo “something” >> /etc/privilegedFile doesn't work
... is a pretty simple question, at least it seems like it should be, about sudo permissions in Linux.
15 Answers
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Why does integer overflow on x86 with GCC cause an infinite loop?
... answered Oct 7 '11 at 2:36
bdonlanbdonlan
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How do you get the width and height of a multi-dimensional array?
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Get exception description and stack trace which caused an exception, all as a string
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Does this only work with the last error? What happens if you start passing the error around to other bits of code? I'm writing a log_error(err) function.
– AnnanFay
Oct 4 '19 at 1:23
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Forward declaring an enum in C++
I'm trying to do something like the following:
17 Answers
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nil detection in Go
... considers it as an invalid comparison and yells at you.
What you want to do here is to compare a pointer to your config instance to nil, which is a valid comparison. To do that you can either use the golang new builtin, or initialize a pointer to it:
config := new(Config) // not nil
or
config...
How do I use ROW_NUMBER()?
...imary key of the row is what should be used to identify a particular row. Don't try and use the row number for that.
If you returned Row_Number() in your main query,
SELECT ROW_NUMBER() OVER (Order by Id) AS RowNumber, Field1, Field2, Field3
FROM User
Then when you want to go 5 rows back then...
The definitive guide to form-based website authentication [closed]
...l be able to read logins as they pass through. This type of wiretapping is done routinely by governments, but in general, we won't address 'owned' wires other than to say this: Just use HTTPS.
In essence, the only practical way to protect against wiretapping/packet sniffing during login is by using ...