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Truncate Two decimal places without rounding
...t it to an Integer. The question would be why you would want to incur that extra overhead anyway since Truncate returns Decimal integrals anyway. Just do something like: decimal step = (decimal)Math.Pow(10, precision); return Math.Truncate(step * value) / step;
– Sarel Esterhu...
Find size of object instance in bytes in c#
...e same, well-defined types. Those for which this isn't true are arrays and strings for sure, and I believe also StringBuilder. For them you'll have add the size of all contained elements to their base instance size.
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What is wrong with using goto? [duplicate]
...urn can be used instead of goto to jump out of nested loops. For example, extract the nested loops into a new function and return from there when the condition that triggers the goto is satisfied. I only see goto being used only to get an extra bit of performance
– mljrg
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Update data in ListFragment as part of ViewPager
...s MPagerAdapter extends FragmentPagerAdapter {
private Map<Integer, String> mFragmentTags;
private FragmentManager mFragmentManager;
public MPagerAdapter(FragmentManager fm) {
super(fm);
mFragmentManager = fm;
mFragmentTags = new HashMap<Integer, String&...
How to “return an object” in C++?
...ll probably optimize the call to the copy constructor, so there will be no extra overhead. (Like dreamlax pointed out in the comment).
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How to set a Fragment tag by code?
I haven't found something like setTag(String tagName) method in the Fragment class. The only way to set a Fragment tag that I have found is by doing a FragmentTransaction and passing a tag name as parameter.
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Is there any way to enforce typing on NSArray, NSMutableArray, etc.?
... types you wish by using macros:
MyArrayTypes.h
CUSTOM_ARRAY_INTERFACE(NSString)
CUSTOM_ARRAY_INTERFACE(User)
MyArrayTypes.m
CUSTOM_ARRAY_IMPLEMENTATION(NSString)
CUSTOM_ARRAY_IMPLEMENTATION(User)
Usage:
NSStringArray* strings = [NSStringArray array];
[strings add:@"Hello"];
NSString* str = ...
How to use shared memory with Linux in C
...buffer. Both processes can read and write the shared memory.
#include <string.h>
#include <unistd.h>
int main() {
char parent_message[] = "hello"; // parent process will write this message
char child_message[] = "goodbye"; // child process will then write this one
void* shmem =...
Bootstrap 3 panel header with buttons wrong position
...ve your floats defined BEFORE the rest of the contents or you'll have that extra line-break problem.
<div class="panel-heading">
<div class="btn-group pull-right">
<a href="#" class="btn btn-default btn-sm">## Lock</a>
<a href="#" class="btn btn-defaul...
What are the differences between B trees and B+ trees?
...e work and more disk reads which makes sense because the tree has all this extra data in it. I don't get it.
– Eric
Sep 2 '15 at 2:45
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