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Nesting await in Parallel.ForEach
...l still wait for all tasks to complete, and GetPartitions will dynamically allocate elements when partition.MoveNext is called until no more elements are left to process. This means that unless you add your own mechanism for stopping the processing (e.g. CancellationToken) it won't happen on its own...
Generate a Hash from string in Javascript
... is faster, because my version has to turn the string into an array first, allocating new memory and copying every character...
– lordvlad
Feb 22 '15 at 10:04
5
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Return all enumerables with yield return at once; without looping through
...rhead if all the client really needs is to enumerate through it, since you allocate the data structures for all elements in advance. Also, if you delegate to another method that's returning a sequence, then capturing it as a collection involves extra copying, and you do not know how many items (and ...
App store link for “rate/review this app”
...sUserReviews?type=Purple+Software&id=%@";
NSString* url = [[NSString alloc] initWithFormat: ([[UIDevice currentDevice].systemVersion floatValue] >= 7.0f) ? iOS7AppStoreURLFormat : iOSAppStoreURLFormat, cAppleID];
[[UIApplication sharedApplication] openURL: [NSURL URLWithString: url]];
}
...
java: (String[])List.toArray() gives ClassCastException
...hat type of array to create.
use
toArray(new String[v2.size()]);
which allocates the right kind of array (String[] and of the right size)
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How to edit multi-gigabyte text files? Vim doesn't work =( [closed]
...pening in gvim resulted in out of memory error when it exceeded 2GB memory allocated. When trying ctrl-c trick, it did stop loading the file into memory but only allowed to see the part of the file that gvim was able to load. So the longer I waited before pressing ctrl-c the more of the file I could...
How can I add a boolean value to a NSDictionary?
...
Try this:
NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
[dic setObject:[NSNumber numberWithBool:TRUE] forKey:@"Pratik"];
[dic setObject:[NSNumber numberWithBool:FALSE] forKey:@"Sachin"];
if ([dic[@"Pratik"] boolValue])
{
NSLog(@"Boolean is TRUE for 'Pratik'");
...
Why is (object)0 == (object)0 different from ((object)0).Equals((object)0)?
...he value.
The object.ReferenceEquals method compares references. When you allocate an object, you receive a reference containing a value indicating its memory location in addition to the object's data on the memory heap.
The object.Equals method compares the contents of objects. It first checks wh...
通过 ulimit 改善系统性能 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... libraries: libc.so.6: failed to map segment
from shared object: Cannot allocate memory
从上面的结果可以看到，此时 ls 运行失败。根据系统给出的错误信息我们可以看出是由于调用 libc 库时内存分配失败而导致的 ls 出错。那么我们来看一下这...
Randomize a List
...> out to a separate method, seems like you cause a lot of unnecessary T allocations for temp.
– Clay
Dec 3 '15 at 14:52
2
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