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How different is Objective-C from C++? [closed]
...t allow objects to be created on the stack - all objects must be allocated from the heap (either explicitly with an alloc message, or implicitly in an appropriate factory method).
Like C++, Objective-C has both structs and classes. However, where in C++ they are treated as almost exactly the same, i...
How to exclude a directory in find . command
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From manpage: Because -delete implies -depth, you cannot usefully use -prune and -delete together. So, how do I go about deleting with find if I want to exclude specific directories from the deletion?
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How to efficiently build a tree from a flat structure?
... an ID in the structure. Therefore their could be several trees emerging from these objects.
18 Answers
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Why do Lua arrays(tables) start at 1 instead of 0?
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Lua is descended from Sol, a language designed for petroleum engineers with no formal training in computer programming. People not trained in computing think it is damned weird to start counting at zero. By adopting 1-based array and string...
Can two applications listen to the same port?
...P address? Taking it a step further, can one app listen to requests coming from a certain IP and the other to another remote IP?
I know I can have one application that starts off two threads (or forks) to have similar behavior, but can two applications that have nothing in common do the same?
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Signed to unsigned conversion in C - is it always safe?
...he unsigned value (UINT_MAX +1). Similarly what is the easy way to convert from unsigned to signed? Do we need to subtract the given number from max value (256 in case of unsigned char)? For example: 140 when converted to signed number becomes -116. But 20 becomes 20 itself. So any easy trick here?
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Why does Lua have no “continue” statement?
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Coming from a python background this is a confusing answer because every scope there already knows what are its local variables before running. I.e. I expected an unbound local variable error in the case of reaching until....
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What is the best way to solve an Objective-C namespace collision?
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If you do not need to use classes from both frameworks at the same time, and you are targeting platforms which support NSBundle unloading (OS X 10.4 or later, no GNUStep support), and performance really isn't an issue for you, I believe that you could load on...
Delete a closed pull request from GitHub
...nd the default PR is to the head. At some point we'll need to branch off from the mai, but for now... zillion closed pr's
– Erik Aronesty
May 6 '19 at 21:24
1
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How to get rid of `deprecated conversion from string constant to ‘char*’` warnings in GCC?
...ern void foo(char* m);
int main() {
// warning: deprecated conversion from string constant to ‘char*’
//foo("Hello");
// no more warning
char msg[] = "Hello";
foo(msg);
}
Is this an appropriate way of solving this? I do not have access to foo to adapt it to accept const c...