显然,NSString *(^)(void)与void (^)(NSString *)在参数和返回类型上都不匹配,因此编译器会报告类型不兼容错误。 提供解决“incompatible block pointer types”错误的一般方法: 检查并修改块定义:确保你传递的块与期望的参数类型完全匹配。 使用类型转换:在极少数情况下,如果你确定转换是安全的,可以使用类型...
Can I pass parameter to an ALTER DATABASE command Can I prevent deadlock during concurrent delete Can I print to file using T- SQL Can I sort an SQL table? Can I sort row without order by clause Can I UPDATE, then INSERT if no record updated? Can I use a COLLATE clause in a temp...
The return type is kept void because it will display a success message on the successful passing of sting into the function. The parameter for my getstring function is the character type array variable because that is how the ordinary array passing functions are declared. Our main function chara...
Note It should be noted that parameters are passed to a function in reversed order, i.e., first the last parameter is calculated and passed, and then the last but one, etc. The last calculated and passed parameter is the one that stands first after opening parenthesis. Example: voidOnStar...
"Parameter is not valid" - new Bitmap() "Recursive write lock acquisitions not allowed in this mode.? "Settings" in DLL project properties and app.config file "The function evaluation requires all threads to run" while accessing music library through wmp.dll "The left-hand side of an assig...
charc, d, e, f;charxdata *ptr;voidtest(void){ CallBack1 (ptr, c);// worksCallBack2 (ptr, ptr);// works, but pointers are memory typed nowCallBack3 (c, d, e);// worksCallBack4 (c, d, e | (f<<8));// works, but two chars are packed into// one int parameter}...
voidinsert(intp,stringstr,intlen,inti,intid){ I thought passing a string as a parameter might be the problem, so I changed my code and passed the index instead, and it got AC (there are other bugs but they don't matter):244220216 ...
sorry the delegate would need a variable name for the parameter. sbornstein2 ASKER 2012/6/01 Okay but one more thing, so the Method for the thread based on that link I need to set the "signal" in order to use the WaitAll. For example: private void DoWork(object threadobj) {...
In C#, parameters can be passed either by value or by reference. Passing parameters by reference allows function members, methods, properties, indexers, operators, and constructors, to change the value of the parameters and have that change persist. To pass a parameter by reference, use the ...
In such cases what you can do is have an event that the thread will set after it copies the passed in parameter to a local UPDATESTATUS variable. The calling function, after creating the thread must wait on this event before it can exit. «_Superman_» Microsoft MVP (Visual C++) P...