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What is the difference between #import and #include in Objective-C?
What are the differences between #import and #include in Objective-C and are there times where you should use one over the other? Is one deprecated?
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What is the fastest integer division supporting division by zero no matter what the result is?
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Inspired by some of the comments I got rid of the branch on my Pentium and gcc compiler using
int f (int x, int y)
{
y += y == 0;
return x/y;
}
The compiler basically recognizes that it can use a condition flag of the test in the addition.
As per request the assembly:
.globl...
Cartesian product of x and y array points into single array of 2D points
I have two numpy arrays that define the x and y axes of a grid. For example:
13 Answers
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C++ Dynamic Shared Library on Linux
...ain(int argc, char **argv)
{
/* on Linux, use "./myclass.so" */
void* handle = dlopen("myclass.so", RTLD_LAZY);
MyClass* (*create)();
void (*destroy)(MyClass*);
create = (MyClass* (*)())dlsym(handle, "create_object");
destroy = (void (*)(MyClass*))dlsym(handle, "destroy_object");
My...
PhoneGap: Detect if running on desktop browser
...developing a web application that uses PhoneGap:Build for a mobile version and want to have a single codebase for the 'desktop' and mobile versions. I want to be able to detect if PhoneGap calls will work (ie, is the user on a mobile device that will support PhoneGap).
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Google Sheets API Setup · App Inventor 2 中文网
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Note: If you are only going to read from the Google Sheets document, and not
edit or write data to the document, you can skip the process of making a Service
Account. The only requirement is that the Google Sheets document is shared such
that anyone with the link can read the document.
Create...
Base 64 encode and decode example code
Does anyone know how to decode and encode a string in Base64 using the Base64. I am using the following code, but it's not working.
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Primary key or Unique index?
At work we have a big database with unique indexes instead of primary keys and all works fine.
15 Answers
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Python requests - print entire http request (raw)?
...f pretty_print_POST(req):
"""
At this point it is completely built and ready
to be fired; it is "prepared".
However pay attention at the formatting used in
this function because it is programmed to be pretty
printed and may differ from the actual request.
"""
print...
Queue.Queue vs. collections.deque
I need a queue which multiple threads can put stuff into, and multiple threads may read from.
7 Answers
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