Unexpected non-void return value in tableview I have a tableview controller and for the tableview I'm registering two cells. Depending on the data in the database will determine which cell will be registered for each row of the tableView. But there is a pointer in my class I use to fetch...
JavaScriptVoidfunction return value is used as the return type of function that does not return any value. Thevoidoperator is often used for obtaining theundefinedprimitive value. void expression Void function return value is used in JavaScript A simple example code describes the returning undefined ...
var button = new NaiveButton();//new 一个button对象 //将下列的OnButtonClicked1、OnButtonClicked2Async、OnButtonClicked3的方法逐一新增到button对象里 button.Clicked += OnButtonClicked1; button.Clicked += OnButtonClicked2Async; button.Clicked += OnButtonClicked3; Console.WriteLine("Click()方法被...
用clang++编译同样类似警告也通过了,但执行出现异常指令。 gaojie@root-host:~$ clang++bool.cppbool.cpp:12:1: warning: non-voidfunction does notreturna value [-Wreturn-type] };^1warning generated. gaojie@root-host:~$ ./a.outyes 非法指令 (核心已转储) 本着好奇的心理,就想知其原因为啥会有不...
foo.c:7:25: error: passing'void'to parameter of incompatible type'int'printf("%d",fun(fun(fun(i))); ^~~~ Because C is compiled to binary, technically, functions always return a value. With most modern processors, the returned value is saved in a register¹, such asRAX(orEAXin 32...
此话意思是 ：返回表达式在空白函数 return 那里出错了
prog1.cpp: In function'bool str_subrange(const string&, const string&)': prog1.cpp:11:4: error:return-statement with no value,infunction returning'bool'[-fpermissive]return; 如果补上合适的返回值编译器不报错,证明编译器没有检查出“在循环后面漏了一个return”这个错误!同时也证明了源代码能通过...
C# Function return string value C# length of digit after decimal point c# regular expression to only allow 1 or 2 digits only c# show hide div from code behind OnClick of C# syntax to Generate Sequence number with Prefix C# textarea object C# TextBox Value Set With Variable C# to VB.ne...
void 表示这个子函数没有返回值 可以子函数最后 return TempDat 所以报错
void a() { return; } Result: % cn voidfn_crash_1.c cn: internal error, uncaught exception: Invalid_argument("option is None") Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45 Called from Dune__exe__Core_to_mucore.n_expr in file "backend/cn/core_to...