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Find out if string ends with another string in C++
...(), ending.length(), ending));
} else {
return false;
}
}
int main () {
std::string test1 = "binary";
std::string test2 = "unary";
std::string test3 = "tertiary";
std::string test4 = "ry";
std::string ending = "nary";
std::cout << hasEnding (test1, end...
How do I select elements of an array given condition?
... the inequalities to evaluate first, so all of the operations occur in the intended order and the results are all well-defined. See docs here.
– calavicci
Nov 16 '17 at 17:58
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Should an Enum start with a 0 or a 1?
...stic trade off I guess - disk space is cheap though, time spent constantly converting between enum values and an intwhen searching the db is relatively expensive (doubly so if you have a reporting tool setup against a database or something similar). If you're worried abotu space, with the newer SQL ...
Can anyone explain this strange behavior with signed floats in C#?
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The bug is in the following two lines of System.ValueType: (I stepped into the reference source)
if (CanCompareBits(this))
return FastEqualsCheck(thisObj, obj);
(Both methods are [MethodImpl(MethodImplOptions.InternalCall)])
When all of the fields are 8 bytes wide, CanCompareBits mista...
Copy a table from one database to another in Postgres
...ll see the insert scripts needed for the table/data. Copy and paste these into the new database sql page in pgAdmin. Run as pgScript - Query->Execute as pgScript F6
Works well and can do multiple tables at a time.
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Python: List vs Dict for look up table
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@John Fouhy: the ints are not stored in the hash table, only pointers, i.e. hou have 40M for the ints (well, not really when a lot of them are small) and 60M for the hash table. I agree that it's not that much of a problem nowadays, still it'...
How do you set the text in an NSTextField?
...ng to set happens to be an integer rather than a string, you don't need to convert the integer value to a string manually; you can just call:
myLabel.integerValue = i;
The integerValue property is defined on NSTextField's parent class, NSControl. See that linked documentation page for a full list...
What is the difference between Scope_Identity(), Identity(), @@Identity, and Ident_Current()?
...not used to get an identity, it's used to create an identity in a select...into query.
The session is the database connection. The scope is the current query or the current stored procedure.
A situation where the scope_identity() and the @@identity functions differ, is if you have a trigger on th...
How do you create a transparent demo screen for an Android app?
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In your first activity find the view you wish to point to (findViewById). Then get its position relative to the root layout using this method. Send position to overlay activity in the intent. Do proper alignment.
– Benito Bertoli
Aug 31 ...
g++ undefined reference to typeinfo
...the error message you asked about.
It's very similar to the code:
extern int i;
int *pi = &i;
which states that the integer i is declared in another compilation unit which must be resolved at link time (otherwise pi can't be set to it's address).
...