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Are there any standard exit status codes in Linux?
...istd.h>
#include <signal.h>
int main() {
int status;
pid_t child = fork();
if (child <= 0)
exit(42);
waitpid(child, &status, 0);
if (WIFEXITED(status))
printf("first child exited with %u\n", WEXITSTATUS(status));
/* prints: "first child exite...
How to print out the method name and line number and conditionally disable NSLog?
...lot:
#ifdef DEBUG
# define DLog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__)
#else
# define DLog(...)
#endif
// ALog always displays output regardless of the DEBUG setting
#define ALog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE_...
Difference between DirectCast() and CType() in VB.NET
... convert a string to an integer. It has as much power as calling Convert.To___() in C#, where the ___ is the target type of your cast.
This is desirable because it's very powerful. However, this power comes at the cost of performance; it's not as fast as DirectCast() or C#'s cast operator because i...
How do I choose a HTTP status code in REST API for “Not Ready Yet, Try Again Later”? [closed]
...lable to the client. This should be treated as an error so no 2XX code is appropriate. Something in the 4XX or 5XX space. The request has not "been accepted for processing", the request is in practice being discarded
– Adam
Oct 21 '18 at 14:15
...
Select distinct values from a table field
...odel is 'Shop'
class Shop(models.Model):
street = models.CharField(max_length=150)
city = models.CharField(max_length=150)
# some of your models may have explicit ordering
class Meta:
ordering = ('city')
Since you may have the Meta class ordering attribute set, you can us...
How to call Base Class's __init__ method from the child class? [duplicate]
...
You could use super(ChildClass, self).__init__()
class BaseClass(object):
def __init__(self, *args, **kwargs):
pass
class ChildClass(BaseClass):
def __init__(self, *args, **kwargs):
super(ChildClass, self).__init__(*args, **kwargs)
You...
Difference between global and device functions
Can anyone describe the differences between __global__ and __device__ ?
9 Answers
...
Get file name from URL
...
If you let String url = new URL(original_url).getPath() and add a special case for filenames that don't contain a . then this works fine.
– Jason C
May 6 '15 at 20:28
...
__FILE__ macro shows full path
The standard predefined macro __FILE__ available in C shows the full path to the file. Is there any way to short the path? I mean instead of
...
Paging UICollectionView by cells, not screen
...nformance and set a value for pageWidth:
func scrollViewWillBeginDragging(_ scrollView: UIScrollView) {
let pageWidth = // The width your page should have (plus a possible margin)
let proportionalOffset = collectionView.contentOffset.x / pageWidth
indexOfCellBeforeDragging = Int(round(p...