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How to parse a string to an int in C++?
...++ way of parsing a string (given as char *) into an int? Robust and clear error handling is a plus (instead of returning zero ).
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Parse a URI String into Name-Value Collection
...odedUtils
is a well known library that can do it for you
import org.apache.hc.client5.http.utils.URLEncodedUtils
String url = "http://www.example.com/something.html?one=1&two=2&three=3&three=3a";
List<NameValuePair> params = URLEncodedUtils.parse(new URI(url), Charset.forName("UT...
淘宝大秒系统设计详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...行记录操作的并发度，同时也能控制单个商品占用数据库连接的数量，防止热点商品占用太多数据库连接。
数据库层做排队。应用层只能做到单机排队，但应用机器数本身很多，这种排队方式控制并发仍然有限，所以如果能...
How to set JVM parameters for Junit Unit Tests?
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According to this support question
https://intellij-support.jetbrains.com/hc/en-us/community/posts/206165789-JUnit-default-heap-size-overridden-
the -Xmx argument for an IntelliJ junit test run will come from the maven-surefire-plugin, if it's set.
This pom.xml snippet
<plugin>
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try/catch + using, right syntax
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I prefer the second one. May as well trap errors relating to the creation of the object as well.
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How do I parse command line arguments in Bash?
...er positional arguments (also requested by the OP); and it ignores parsing-errors. Instead:
Use enhanced getopt from util-linux or formerly GNU glibc.1
It works with getopt_long() the C function of GNU glibc.
Has all useful distinguishing features (the others don’t have them):
handles spaces, ...
Python add item to the tuple
...2',) but when I try to add new one using mytuple = mytuple + new.id got error can only concatenate tuple (not "unicode") to tuple .
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Convert Long into Integer
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I am getting the error: Cannot invoke intValue() on the primitive type long
– Anand
Jul 22 '16 at 8:29
1
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Append a NumPy array to a NumPy array
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Well, the error message says it all: NumPy arrays do not have an append() method. There's a free function numpy.append() however:
numpy.append(M, a)
This will create a new array instead of mutating M in place. Note that using num...
Fastest way to find second (third…) highest/lowest value in vector or column
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I used this method, but get the following error: Error in sort.int(x, na.last = na.last, decreasing = decreasing, ...) : index 4705 outside bounds Any idea what might the issue be? Some details: My x is a numeric vector of length 4706 with some NAs in the data. I...