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Redefining NULL
...es not require null pointers to be at the machine's address zero. HOWEVER, casting a 0 constant to a pointer value must result in a NULL pointer (§6.3.2.3/3), and evaluating the null pointer as a boolean must be false. This can be a bit awkward if you really do want a zero address, and NULL is not ...
techniques for obscuring sensitive strings in C++
...
Basically, anyone with access to your program and a debugger can and will find the key in the application if they want to.
But, if you just want to make sure the key doesn't show up when running strings on your binary, you could for instance make sure that the key is no...
How to refer to relative paths of resources when working with a code repository
We are working with a code repository which is deployed to both Windows and Linux - sometimes in different directories. How should one of the modules inside the project refer to one of the non-Python resources in the project (CSV files, etc.)?
...
Python recursive folder read
I have a C++/Obj-C background and I am just discovering Python (been writing it for about an hour).
I am writing a script to recursively read the contents of text files in a folder structure.
...
What does T&& (double ampersand) mean in C++11?
...t[]> ptr2{ptr1};// compile error: no copy ctor.
// So we must first cast ptr1 to an rvalue
std::unique_ptr<int[]> ptr2{std::move(ptr1)};
std::unique_ptr<int[]> TakeOwnershipAndAlter(std::unique_ptr<int[]> param,\
int size)
{
for (auto i = 0; i < size; ++i) {...
How to open every file in a folder?
...have a python script parse.py, which in the script open a file, say file1, and then do something maybe print out the total number of characters.
...
How to get all of the immediate subdirectories in Python
... return the full path to all current subdirectories.
tl;dr:
Always use scandir:
list_subfolders_with_paths = [f.path for f in os.scandir(path) if f.is_dir()]
Bonus: With scandir you can also simply only get folder names by using f.name instead of f.path.
This (as well as all other functions b...
Equivalent of typedef in C#
...ions:
it will not work for primitive types
the derived type can still be casted to the original type, ie we can send it to a function receiving our original type, this defeats the whole purpose
we cannot derive from sealed classes (and ie many .NET classes are sealed)
The only way to achieve a ...
A positive lambda: '+[]{}' - What sorcery is this? [duplicate]
...o pass by value instead of reference. The better way would be with static_cast<T>(lvalue) to get a prvalue of type T from an lvalue. "customary to use a generic function called val()": This isn't clear, can you show an example/link of such a val() function?
– Andrew Tom...
Subclassing a Java Builder class
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To solve the unchecked cast warning, see the solution suggested bellow among the other answers: stackoverflow.com/a/34741836/3114959
– Stepan Vavra
Jan 12 '16 at 11:00
...