I\'ve been trying to make my scrollview correctly fit it\'s content which includes a label, UIImageView, and textview. The textview sizes dynamically to different text, so I\'ve made the scrollview\'s
Consider this code: struct foo { int a; }; foo q() { foo f; f.a =4; return f;} int main() { foo i; i.a = 5; q() = i;
I have here char text[60]; Then I do in an if: if(number == 2) text = \"awesome\"; else text = \"you fail\";
The last line of this particular code block produces the error \"lvalue required as left operand of assignment\". The confusion lies in why the last line throws this error while the second to last lin
Let\'s say I\'ve got that: char *p = NULL; I\'m sure this one would b开发者_运维知识库e a problem as I\'d be dereferencing a NULL pointer:
One can frequently read that you cannot bind normal lvalue reference to temporary object. Because of that one can frequently see methods of class A taking const A& as a parameter when they don\'t
Below is a triple nested indexing scheme.My pointer to an array of pointers is dereferenced on the commented line... in theory this should give me a pointer.I subtract one from it and then reference i
Here\'s one that\'s sure to be fun for someone.So I have an array of objects (in my test/demo code here, I just make them doubles for simplicity) and then I create an array of pointers to these object
int main () { int a = 5,b = 2; printf(\"%d\",a+++++b); return 0; } This code gives the fol开发者_开发问答lowing error:
This question already has answers here: Closed 11 years ago. Possible Duplicate: What are rvalues, lvalues, xvalues, glvalues, and prvalues?
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