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Passing a 2D array to a C++ function
...
Fixed Size
1. Pass by reference
template <size_t rows, size_t cols>
void process_2d_array_template(int (&array)[rows][cols])
{
std::cout << __func__ << std::endl;
for (size_t i = 0; i < rows; ++i)
{
...
Unmount the directory which is mounted by sshfs in Mac [closed]
...
Use umount, as the docs say (pointed to by the answer of @opsmason).
– Ioannis Filippidis
Apr 10 '15 at 7:41
3
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What is the correct way of using C++11's range-based for?
...erations.
This is because we are capturing the elements from the container by value
(the auto x part in for (auto x : v)).
This is inefficient code, e.g., if these elements are instances of std::string,
heap memory allocations can be done, with expensive trips to the memory manager, etc.
This is u...
Realistic usage of the C99 'restrict' keyword?
...liminates the potential for pointer aliasing, enabling better optimization by the compiler.
For instance, suppose I have a machine with specialized instructions that can multiply vectors of numbers in memory, and I have the following code:
void MultiplyArrays(int* dest, int* src1, int* src2, int n...
What is the difference between POST and GET? [duplicate]
... web applications. One reason for this is that GET may be used arbitrarily by robots or crawlers, which should not need to consider the side effects that a request should cause.
and
POST submits data to be processed (e.g., from an HTML form) to the identified resource. The data is included in...
Why not use always android:configChanges=“keyboardHidden|orientation”?
...
Quick Background
By default, when certain key configuration changes happen on Android (a common example is an orientation change), Android fully restarts the running Activity to help it adjust to such changes.
When you define android:configC...
What does Java option -Xmx stand for? [duplicate]
...here: Java Tool Doc, it says,
-Xmxn
Specify the maximum size, in bytes, of the memory allocation pool. This value must a multiple of 1024 greater than 2MB. Append the letter k or K to indicate kilobytes, or m or M to indicate megabytes. The default value is 64MB. The upper limit for this v...
Simpler way to put PDB breakpoints in Python code?
...
You can run your program into pdb from the command line by running
python -m pdb your_script.py
It will break on the 1st line, then you'll be able to add a breakpoint wherever you want in your code using the break command, its syntax is:
b(reak) [[filename:]lineno | func...
use Winmerge inside of Git to file diff
...ne 2012 (2-and-a-half years later):
Comparing directories instead of file-by-file will be available soon:
See [ANNOUNCE] Git 1.7.11.rc1:
"git difftool" learned the "--dir-diff" option to spawn external diff tools that can compare two directory hierarchies at a time after populating two temporar...
When should one use a spinlock instead of mutex?
...il being woken up, which will be the case once the mutex is being unlocked by whatever thread was holding the lock before. When a thread tries to lock a spinlock and it does not succeed, it will continuously re-try locking it, until it finally succeeds; thus it will not allow another thread to take ...