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In what cases do I use malloc and/or new?
...;
struct foo {
double d[5];
};
int main() {
foo *f1 = malloc(1); // error, no cast
foo *f2 = static_cast<foo*>(malloc(sizeof(foo)));
foo *f3 = static_cast<foo*>(malloc(1)); // No error, bad
}
It's worse than that though. If the type in question is POD (plain old data) then yo...
How can I scale an image in a CSS sprite
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edited Sep 5 '18 at 4:05
KyleMit
54.2k4747 gold badges332332 silver badges499499 bronze badges
answe...
mongodb: insert if not exists
...n("test").insert({a:1, b:12, c:13}) # This fails
E11000 duplicate key error index: foo.test.$a_1 dup key: { : 1.0 }
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oh-my-zsh slow, but only for certain Git repo
I recently started using Zsh and it's awesome. Unfortunately, for the project I consider my "main" project, everything is slow. What I mean is that every time I run a command - ls , for example - there's about a five-second delay between the time the command is executed and the time I can use the t...
Error : BinderProxy@45d459c0 is not valid; is your activity running?
What is this error... i haven't found any discussion on this error in the stackoverflow community Detailed :-
9 Answers
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Private properties in JavaScript ES6 classes
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And what about eslint? I got parser error at equal sign. Babel is working, just eslint can't parse this new js syntax.
– martonx
Feb 4 '19 at 21:55
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How do I use arrays in C++?
...ally everywhere. C++ provides abstractions that are easier to use and less error-prone ( std::vector<T> since C++98 and std::array<T, n> since C++11 ), so the need for arrays does not arise quite as often as it does in C. However, when you read legacy code or interact with a library ...
What is the difference between is_a and instanceof?
...x it now though. The problem is that the instanceof operator throws syntax errors in PHP 4, and since is_a was deprecated at the exact same time as the operator was introduced it became impossible to write code for both PHP 4 and 5 without throwing an E_STRICT around. You can't even do if (version_c...
package R does not exist
...ders. I just forgot to also edit AndroidManifest and that's why I got this error.
Make sure you check this as well.
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Java FileReader encoding issue
... InputStream is = new FileInputStream(filename); here i got error file not found error with Russian file name
– Bhanu Sharma
Feb 10 '14 at 8:59
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