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Structure padding and packing
...(struct stu_f));
struct stu_g g;
struct stu_h h;
struct stu_f f1;
struct stu_f f2;
int x = 1;
long y = 1;
printf("address of %s: %p\n", "g", &g);
printf("address of %s: %p\n", "h", &h);
printf("address of %s: %p\n", "f1", &f1);
printf("address of...
Input and output numpy arrays to h5py
...p
In [2]: import h5py
In [3]: a = np.random.random(size=(100,20))
In [4]: h5f = h5py.File('data.h5', 'w')
In [5]: h5f.create_dataset('dataset_1', data=a)
Out[5]: <HDF5 dataset "dataset_1": shape (100, 20), type "<f8">
In [6]: h5f.close()
You can then load that data back in using:
'
In [...
How to add color to Github's README.md file
...3c15](https://via.placeholder.com/15/f03c15/000000?text=+) `#f03c15`
-  `#c5f015`
-  `#1589F0`
Produces:
#f03c15
#c5f015
#1589F0
...
Ruby Bundle Symbol not found: _SSLv2_client_method (LoadError)
.....
-> http://dqw8nmjcqpjn7.cloudfront.net/f22a6447811a81f3c808d1c2a5ce3b5f5f0955c68c9a749182feb425589e6635
Installing ruby-2.1.2...
Installed ruby-2.1.2 to /Users/ryan/.rbenv/versions/2.1.2
share
|
...
Google Maps v3 - limit viewable area and zoom level
...=UTF-8"/>
<title>Google Maps JavaScript API v3 Example: Limit Panning and Zoom</title>
<script type="text/javascript"
src="http://maps.google.com/maps/api/js?sensor=false"></script>
</head>
<body>
<div id="map" style="width: 400px; h...
What are the advantages of using nullptr?
...re, it is possible for a compiler (silly, but possible) to use e.g. 0xabcdef1234 or some other number for the null pointer. On the other hand, nullptr is required to convert to numeric zero.
– Damon
Dec 11 '12 at 12:34
...
Tick symbol in HTML/XHTML
... &#x2718; / dec: &#10008;): heavy ballot x
???? (⚠ hex: &#x1F5F8; / dec &#128504;): light check mark (poorly supported as of 2017)
✅ (⚠ hex: &#x2705; / dec: &#9989;): white heavy check mark (mixed support as of 2017)
???? (⚠ hex: &#x1F5F4; / dec: &#128500;): b...
【转】用App Inventor 2实现电子围栏功能 - App应用开发 - 清泛IT社区，为创新赋能！
...71.093612.In blocks code, it is recommended for performance reasons to use PanTo with numerical latitude and longitude rather than convert to the string representation for use with this property.设置显示在手机屏幕上的地图中心的坐标。值是一对由逗号分隔的十进制坐标，...
Fast and responsive interactive charts/graphs: SVG, Canvas, other?
...dating a project that basically renders thousands of points in a zoomable, pannable graph. The current implementation, using Protovis, is underperformant. Check it out here:
...
C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
..."}
# 输出t的地址
(gdb) p &t
$2 = (struct test *) 0x7fffffffe5f0
#输出(t.i)的地址
(gdb) p &(t.i)
$3 = (char **) 0x7fffffffe5f0
#输出(t.p)的地址
(gdb) p &(t.p)
$4 = (char **) 0x7fffffffe5f4
我们可以看到，t.i的地址和t的地址是...