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How can I loop through a C++ map of maps?
...x which is much clearer IMO than const int *const x. But it's just parsed from left to right so the effect is the same. See the answers to this question: stackoverflow.com/questions/5503352/const-before-or-const-after
– Riot
Dec 30 '14 at 12:34
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Is it a bad practice to catch Throwable?
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straight from the javadoc of the Error class (which recommends not to catch these):
* An <code>Error</code> is a subclass of <code>Throwable</code>
* that indicates serious problems that a reasonable applic...
How to convert BigDecimal to Double in Java?
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You need to use the doubleValue() method to get the double value from a BigDecimal object.
BigDecimal bd; // the value you get
double d = bd.doubleValue(); // The double you want
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WheelView 拓展：滚轮选择框扩展，滚轮日历选择框和旋转日历扩展 · App In...
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WheelView, like number picker, but can be any strings.
original code from WheelView: 效果类似android4.0以上原生的DatePicker 18
Thanks @wildcontrol to sponsor this extension
Demo picture:
this demo used 3 extensions
Download link here;
aix拓展
cn.kevinkun.WheelView.aix
demo
W...
Print All JVM Flags
...entalVMOptions -XX:+PrintFlagsFinal -XX:+PrintFlagsWithComments -version.
From the directory with the sources, you could execute (assuming you are using Linux, Cygwin or the like):
grep -FR 'UnlockExperimentalVMOptions' hotspot/
Or, the following (which only looks at *.cpp and *.hpp files):
fin...
How is “int main(){(([](){})());}” valid C++?
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The code essentially calls an empty lambda.
Let's start from the beginning: [](){} is an empty lambda expression.
Then, in C and C++, you can wrap expressions in parens and they behave exactly the same† as if written without them, so that's what the first pair of parens around ...
Inconsistent accessibility: property type is less accessible
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My solution was to REMOVE public from my class definition.
– Cody
Sep 21 '18 at 16:08
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Way to read first few lines for pandas dataframe
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I think you can use the nrows parameter. From the docs:
nrows : int, default None
Number of rows of file to read. Useful for reading pieces of large files
which seems to work. Using one of the standard large test files (988504479 bytes, 5344499 lines):
In ...
How can I capture the result of var_dump to a string?
... in spirit, as it makes more sense generally.
– Josh from Qaribou
Jun 6 '14 at 18:17
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@AlbertHen...
HttpListener Access Denied
...4/"); work without any problem. It looks like Microsoft excluded localhost from these restrictions. Interestingly, httpListener.Prefixes.Add("http://127.0.0.1:4444/"); still shows an Access Denied error, so the only thing that works is localhost:{any port}
– Tony
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