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MySQL Error 1215: Cannot add foreign key constraint
...new schema onto my db server, but I can't figure out why I am getting this error. I've tried to search for the answer here, but everything I've found has said to either set the db engine to Innodb or to make sure the keys I'm trying to use as a foreign key are primary keys in their own tables. I h...
C# elegant way to check if a property's property is null
In C#, say that you want to pull a value off of PropertyC in this example and ObjectA, PropertyA and PropertyB can all be null.
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Expanding a parent to the height of its children
...lay.
– Alba Mendez
Jul 30 '11 at 12:05
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In C, do braces act as a stack frame?
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answered May 3 '10 at 20:05
user19666user19666
3122 bronze badges
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MySQL case insensitive select
...h wrong.
– phil294
Mar 14 '18 at 23:05
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Difference between private, public, and protected inheritance
...t.
If we compile the following code, we will get nothing but compilation errors saying that put and get methods are inaccessible. Why?
When we omit the visibility specifier, the compiler assumes that we are going to apply the so-called private inheritance. It means that all public superclass comp...
CUDA incompatible with my gcc version
... @bryant1410 When I ran the commands in step four, I remember getting an error along the lines of, "Error: directory /usr/local/cuda/bin/gcc does not exist, aborting," or something similar. I'm realizing now, (after reading the details of the question), that your answer assumes a step 0 mentioned ...
What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
...eral member functions that are implemented by the moc; if you get compiler errors along the lines of "undefined reference to vtable for LcdNumber", you have probably forgotten to run the moc or to include the moc output in the link command.
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Simple way to encode a string according to a password?
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@smehmood I'm getting the following error 'str' object cannot be interpreted as an integer
– Rohit Khatri
Nov 16 '16 at 12:23
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Why can I not push_back a unique_ptr into a vector?
...and then ask the std::vector to copy that instance during initialisation.
error: deleted function 'std::unique_ptr<_Tp, _Tp_Deleter>::uniqu
e_ptr(const std::unique_ptr<_Tp, _Tp_Deleter>&) [with _Tp = int, _Tp_D
eleter = std::default_delete<int>, std::unique_ptr<_Tp, _Tp_Del...