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Reason to Pass a Pointer by Reference in C++?
... answered Apr 20 '12 at 4:14
David Z.David Z.
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Realistic usage of the C99 'restrict' keyword?
...n multiply vectors of numbers in memory, and I have the following code:
void MultiplyArrays(int* dest, int* src1, int* src2, int n)
{
for(int i = 0; i < n; i++)
{
dest[i] = src1[i]*src2[i];
}
}
The compiler needs to properly handle if dest, src1, and src2 overlap, meaning i...
How can you use an object's property in a double-quoted string?
...se those in the subexpression operator $( ) which causes the expression inside to be evaluated and embedded in the string.
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How do I connect to a MySQL Database in Python?
...vanced usage
Once you know how it works, You may want to use an ORM to avoid writing SQL manually and manipulate your tables as they were Python objects. The most famous ORM in the Python community is SQLAlchemy.
I strongly advise you to use it: your life is going to be much easier.
I recently d...
Combining C++ and C - how does #ifdef __cplusplus work?
...wo functions with the same name will have different symbol names.
Code inside an extern "C" is still C++ code. There are limitations on what you can do in an extern "C" block, but they're all about linkage. You can't define any new symbols that can't be built with C linkage. That means no classe...
How to show google.com in an iframe?
... @niutech Incredibly, your URL with the ?igu=1 parameter works. Any idea why? What's the original purpose behind that option? Interestingly, this causes me to show as not logged in, but the search field still suggests some of my actual historical searches. So I'm "kind of" logged in. Very str...
What does “S3 methods” mean in R?
..., and some recommend to use S3 over S4 if possible (See Google's R Style Guide at http://google-styleguide.googlecode.com/svn/trunk/google-r-style.html )*. However, I do not know the exact definition of S3 methods/objects.
...
Git - What is the difference between push.default “matching” and “simple”
...ferent from default.
Push only the current branch if its named upstream is identical
git config --global push.default simple
So, it's better, in my opinion, to use this option and push your code branch by branch. It's better to push branches manually and individually.
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Why is String.chars() a stream of ints in Java 8?
...eover, using method references to your own method do not work anymore! Consider the following:
private void print(char c) {
System.out.println(c);
}
and then
hello.chars()
.forEach(this::print);
This will give a compile error, as there possibly is a lossy conversion.
Conclusion:
...
Co-variant array conversion from x to y may cause run-time exception
...pecialized type) to Control (base type).
– TheVillageIdiot
Jan 2 '12 at 19:16
2
Yes, converting f...