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Which comment style should I use in batch files?
..., also a multiline caret at the line end, if it's not the end of the first token.
REM This is a comment, the caret is ignored^
echo This line is printed
REM This_is_a_comment_the_caret_appends_the_next_line^
echo This line is part of the remark
REM followed by some characters .:\/= works a bit...
Check whether an array is a subset of another
... t1. The advantage of this method is that it is done all in-place, without allocating additional space, unlike the solutions using .Except or .Intersect. Furthermore, this solution is able to break as soon as it finds a single element that violates the subset condition, while the others continue sea...
In-place type conversion of a NumPy array
...d answer. However arr_.astype(new_dtype, copy=False) still returns a newly allocated array. How to satisfied the dtype, order, and subok requirements to return a copy of array? I don't solve it.
– 蒋志强
Aug 5 '19 at 21:20
...
iOS - forward all touches through a view
...ents to be forwarded to:
SomeViewSubclass *view = [[[SomeViewSubclass alloc] initWithFrame:someRect] autorelease];
view.forwardableTouchee = someOtherView;
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How do I solve the INSTALL_FAILED_DEXOPT error?
...k space" error - and looking at the emulator properties, the default space allocated for internal storage is 800MB which seems low.
Solution, therefore was to increase this (I went to 4GB). Oddly the emulator still boots with the same disk space warning but factory resetting it (Settings --> Bac...
Getting the current Fragment instance in the viewpager
...since it handle it by itself. The ViewPager decide when fragment should be allocated or not, what to pause and when, keeping a reference on every fragment will add some useless overhead and is not optimized for the memory.
– Livio
Nov 6 '15 at 15:17
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How do I clone a generic list in C#?
... I think List.ConvertAll might do this in faster time, since it can pre-allocate the entire array for the list, versus having to resize all the time.
– MichaelGG
Oct 21 '08 at 17:43
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腾讯Tencent开源框架介绍（持续更新） - 开源 & Github - 清泛网 - 专注C/C++及内核技术
..._t*)args;
int id = 0;
while (true)
{
stTask_t* task = (stTask_t*)calloc(1, sizeof(stTask_t));
task->id = id++;
env->task_queue.push(task);
printf("%s:%d produce task %d\n", __func__, __LINE__, task->id);
co_cond_signal(env->cond);
poll(NULL, 0, 1000);
}
return NULL;
}
v...
What is the difference between static_cast and C style casting?
... in a 4-byte pointer ( a pointer to 4-byte datatype) pointing to 1 byte of allocated memory, writing to this pointer will either cause a run-time error or will overwrite some adjacent memory.
*p = 5; // run-time error: stack corruption
In contrast to the C-style cast, the static cast will allow t...
Identify duplicates in a List
...timal solution (instead of sorting the input) then you'll also want to pre-allocate the size of the HashSet() objects. Without the preallocation, you don't get O(1) insert time when inserting into the HashSet(). This is because the internal hash array gets repeatedly resized. The inserts then averag...