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Why doesn't Java allow to throw a checked exception from static initialization block?
...hat you could surround them with try-catch.
Because you cannot handle any error indicated by a checked exception, it was decided to disallow throwing of checked exceptions static blocks.
The static block must not throw checked exceptions but still allows unchecked/runtime-exceptions to be thrown. ...
SQL injection that gets around mysql_real_escape_string()
..._real_escape_string(), which now fails and produces an CR_INSECURE_API_ERR error if NO_BACKSLASH_ESCAPES is enabled.
References: See also Bug #19211994.
Safe Examples
Taken together with the bug explained by ircmaxell, the following examples are entirely safe (assuming that one is eith...
Bold & Non-Bold Text In A Single UILabel?
...deal with iOS5 old stuff besides syntax is shorter so everything becomes really simple:
Swift 5
func attributedString(from string: String, nonBoldRange: NSRange?) -> NSAttributedString {
let fontSize = UIFont.systemFontSize
let attrs = [
NSAttributedString.Key.font: UIFont.bold...
The relationship could not be changed because one or more of the foreign-key properties is non-nulla
I am getting this error when I GetById() on an entity and then set the collection of child entities to my new list which comes from the MVC view.
...
PG::ConnectionBad - could not connect to server: Connection refused
...
#2 is a great suggestion: "Check server.log". My error was actually caused by upgrading to Yosemite, the server log said: FATAL: could not open directory "pg_tblspc": No such file or directory. This answer helped me with that problem stackoverflow.com/questions/25970132/...
How do I decode HTML entities in Swift?
...r ease of use. Note that Santiago's Swift 2 version fixes the compile time errors, but taking out the strtooul(string, nil, base) entirely will cause the code not to work with numeric character entities and crash when it comes to an entity it doesn't recognize (instead of failing gracefully).
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Redis command to get all available keys?
Is there a Redis command for fetching all keys in the database? I have seen some python-redis libraries fetching them. But was wondering if it is possible from redis-client.
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Debug Error \"pure virtual function call\" 原因解析 - 更多技术 - 清泛...
Debug Error "pure virtual function call" 原因解析结论：一般在构造、析构函数中调用虚函数就可能出这个错误，检查纯虚函数，看看有没有在构造析构函数中调用。以下来自：http: www.kuqin.c...结论：一般在构造、析构函数中调用虚函数...
Loop backwards using indices in Python?
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yes, PEP-322 gives us a clear and least error-prone way to reverse iterations.
– Allen Shen
Jul 31 '19 at 20:25
1
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Where is the C auto keyword used?
...(auto versus extrn). If you do not use one or the other, you have a syntax error. That is to say, x, y; is not a declaration by itself, but auto x, y; is.
Since code bases written in B had to be ported to NB and to C as the language was developed, the newer versions of the language carried some bag...