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pycharm convert tabs to spaces automatically
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64
For selections, you can also convert the selection using the "To spaces" function. I usually ju...
How to convert std::string to LPCSTR?
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Minor picky point: on x64 LPCSTR would be a 64-bit pointer to a (constant) null-terminated string.
– Joel
Jul 30 '09 at 14:41
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C++ new int[0] — will it allocate memory?
...C++ isn't so strong with forbidding zero sized objects. Think of the empty base class optimization: Here too, an empty base class sub-object may have size zero. In contrast, the C Standard makes a strong effort to ensure there never are zero sized objects created: In defining malloc(0) it says the e...
Change the maximum upload file size
...swered Jul 30 '13 at 22:17
user1641252user1641252
63155 silver badges22 bronze badges
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Git Tag list, display commit sha1 hashes
...list of tags, so this does the job:
% git show-ref v3.4.0.13-ga v3.4.0.13-base
bfc7747c4cf67a4aacc71d7a40337d2c3f73a886 refs/tags/v3.4.0.13-base
79ba365e75a4f9cee074d25a605a26acb660b7de refs/tags/v3.4.0.13-ga
However, some experimentation with "git show" resulted in this command:
% git show --su...
MySQL “Group By” and “Order By”
...sy to disable ONLY_FULL_GROUP_BY. For example: SET SESSION sql_mode = '';. Demo: db-fiddle.com/f/esww483qFQXbXzJmkHZ8VT/3
– mikep
Apr 2 '19 at 7:26
1
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Can I set background image and opacity in the same property?
...You can use CSS psuedo selector ::after to achieve this. Here is a working demo.
.bg-container{
width: 100%;
height: 300px;
border: 1px solid #000;
position: relative;
}
.bg-container .content{
position: absolute;
z-index:999;
text-align: center;
width: 100%;
}
.bg...
How to place div side by side
...iv>
<div class="flex-item"></div>
</div>
jsFiddle demo
Note that flex boxes are not backwards compatible with old browsers, but is a great option for targeting modern browsers (see also Caniuse and MDN). A great comprehensive guide on how to use flex boxes is available on C...
How to round up to the nearest 10 (or 100 or X)?
...nice" number is. The following lets us define "nice" as a vector with nice base values from 1 to 10. The default is set to the even numbers plus 5.
roundUpNice <- function(x, nice=c(1,2,4,5,6,8,10)) {
if(length(x) != 1) stop("'x' must be of length 1")
10^floor(log10(x)) * nice[[which(x &...
驯服Linux OOM Killer（优质英文资料翻译） - 操作系统(内核) - 清泛网移动...
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echo 256 > /mnt/oom-killer/lambs/oom.priority
oom.priority是一个 64 位无符号整数，并且可以具有一个无符号 64 位数字可以容纳的最大值。在扫描要杀死的进程时，OOM-killer 从具有最高 oom.priority 值的任务列表中选择一个进程。
添加要添...