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Convert float to double without losing precision
...or originally. The double is representing the original float accurately; toString is showing the "extra" data which was already present.
For example (and these numbers aren't right, I'm just making things up) suppose you had:
float f = 0.1F;
double d = f;
Then the value of f might be exactly 0.1...
How do I get the path of a process in Unix / Linux
...swers were specific to linux.
If you need also unix, then you need this:
char * getExecPath (char * path,size_t dest_len, char * argv0)
{
char * baseName = NULL;
char * systemPath = NULL;
char * candidateDir = NULL;
/* the easiest case: we are in linux */
size_t buff_len;
...
RestSharp JSON Parameter Posting
... sets content type to application/json and serializes the object to a JSON string.
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TypeScript static classes
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public static myProp = "Hello";
public static doSomething(): string {
return "World";
}
}
const okay = MyClass.doSomething();
//const errors = new MyClass(); // Error
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Redirecting from HTTP to HTTPS with PHP
...rects to prevent the rest of the page from executing (and possibly sending extra information to the client) (i.e. to hackers or browsers that may not respect the header).
– dajon
Dec 11 '13 at 7:16
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How can I convert String to Int?
...lse, but for noobish people what 'out x' does is set the value of x to the string-cast-as-integer, if the casting is successful. I.e. in this case, x = 0 if the string has any non-integer characters, or x = value of string-as-integer otherwise. So the neat thing is this is one short expression which...
android pick images from gallery
...& null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int colu...
C++特化模板函数的符号多重定义错误问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
...mp 或其 TCHAR 版本 _tcscmp 的模板特化：
// specialization for strings
template<>
int compare<LPCTSTR>(LPCTSTR s1, LPCTSTR s2)
{
return _tcscmp(s1, s2);
}
没错，这样做完全正确，现在的问题是：将这个特化放在何处？显然是要放在模板的头文件中...
How to insert a character in a string at a certain position?
I'm getting in an int with a 6 digit value. I want to display it as a String with a decimal point (.) at 2 digits from the end of int . I wanted to use a float but was suggested to use String for a better display output (instead of 1234.5 will be 1234.50 ). Therefore, I need a function t...
How to un-escape a backslash-escaped string?
Suppose I have a string which is a backslash-escaped version of another string. Is there an easy way, in Python, to unescape the string? I could, for example, do:
...