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How to convert a number to string and vice versa in C++
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Update for C++11
As of the C++11 standard, string-to-number conversion and vice-versa are built in into the standard library. All the following functions are present in <string> (as per paragraph 21.5).
string to numeric
fl...
How to avoid “Permission denied” when using pip with virtualenv
...nvironment on an Ubuntu machine, but encounter a permission-related issue. For example:
8 Answers
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How to get jQuery dropdown value onchange event
...0">Inactive</option>
</select>
Then you can use this code for getting value:
$(function(){
$("#status").change(function(){
var status = this.value;
alert(status);
if(status=="1")
$("#icon_class, #background_class").hide();// hide multiple sections
});
});
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How to create abstract properties in python abstract classes
...d to an abstract method.
Note: Order matters, you have to use @property before @abstractmethod
Python 3.3+: (python docs):
class C(ABC):
@property
@abstractmethod
def my_abstract_property(self):
...
Python 2: (python docs)
class C(ABC):
@abstractproperty
def my_abst...
Regex replace uppercase with lowercase letters
...per. very useful. Could you please point to some resource that lists transformations like '\L' ?
– Codious-JR
Apr 3 '16 at 10:49
18
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Why doesn't os.path.join() work in this case?
... with a slash, then they're considered an "absolute path" and everything before them is discarded.
Quoting the Python docs for os.path.join:
If a component is an absolute path, all previous components are thrown away and joining continues from the absolute path component.
Note on Windows, the...
SQLAlchemy default DateTime
... This isn't right. The timestamp at model load will be used for all new records rather than the time the record is added.
– SkyLeach
Feb 9 '16 at 16:18
10
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Get list of a class' instance methods
...is error my_class.rb:10:in <main>: undefined method instance_methods for #<TestClass:0x96b9d20> (NoMethodError)
– Vladimir Tsukanov
Jun 24 '11 at 14:04
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JavaScript naming conventions [closed]
...roversy, but arguments at least) about which naming convention is the best for JavaScript.
6 Answers
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windows C++ gbk转为utf-8 - C/C++ - 清泛网 - 专注C/C++及内核技术
...码转换为linux使用的utf8格式的，否则会出现乱码。
//m_string是windows下的中文字符串
//utf8_string是返回转换为utf8编码的中文字符串
//slen是utf8_string字符数组的大小
int multichar_2_utf8(const char *m_string,char *utf8_string,int slen) {
int le...