c++ Programming Glossary: parentheses
Is there any reason to use the 'auto' keyword in C / C++? http://stackoverflow.com/questions/1046477/is-there-any-reason-to-use-the-auto-keyword-in-c-c declaration of a variable a of type int having redundant parentheses around a . It is always taken to be a declaration so auto wouldn't.. again the human would be better off removing the redundant parentheses around a I would say. int a With the new meaning of auto arriving..
Conditional operator differences between C and C++ http://stackoverflow.com/questions/1082655/conditional-operator-differences-between-c-and-c 1 b 2 is valid C code but will throw an error in C without parentheses around the last expression true a 1 b 2 share improve this..
Inserting elements in multidimensional Vector http://stackoverflow.com/questions/13936733/inserting-elements-in-multidimensional-vector vector vec i for int j 0 j n j vec i j i n j I included parentheses in vec i j just for understanding. Edit If you want to fill..
Difference between A* pA = new A; and A* pA = new A(); http://stackoverflow.com/questions/1581763/difference-between-a-pa-new-a-and-a-pa-new-a depending on whether the initializer is omitted a pair of parentheses or otherwise. 8.5 dcl.init 5 The meaning of zero initialize..
Default constructor with empty brackets http://stackoverflow.com/questions/180172/default-constructor-with-empty-brackets there any good reason that an empty set of round brackets parentheses isn't valid for calling the default constructor in C MyObject.. fails to compile. The workaround is to add another pair of parentheses std vector T v std istream_iterator T ifs std istream_iterator..
How to initialise memory with new operator in C++? http://stackoverflow.com/questions/2204176/how-to-initialise-memory-with-new-operator-in-c the Standard new int 10 Note that you must use the empty parentheses you cannot for example use 0 or any other expression which is..
Read whole ASCII file into C++ std::string http://stackoverflow.com/questions/2602013/read-whole-ascii-file-into-c-stdstring confused it with C's fopen . Edit Also note the extra parentheses around the first argument to the string constructor. These are..
Why override operator()? http://stackoverflow.com/questions/317450/why-override-operator You can perfectly write a functor that has several parentheses operator as long as you respect the basic rules of method overloading..
In C/C++, is char* arrayName[][] a pointer to a pointer to a pointer OR a pointer to a pointer? http://stackoverflow.com/questions/3920729/in-c-c-is-char-arrayname-a-pointer-to-a-pointer-to-a-pointer-or-a-pointe like char def definition term dic Note that we have to use parentheses around the dictionary expression in the function. The array..
Typedef function pointer? http://stackoverflow.com/questions/4295432/typedef-function-pointer and parameters thus the need to use more keywords and parentheses to write the function declaration. The readability may start..
Difference between creating object with () or without http://stackoverflow.com/questions/5116541/difference-between-creating-object-with-or-without this question The other answers correctly state that the parentheses version is actually a function declaration. To understand it.. and MainGIUWindow p new MainGIUWindow The version with parentheses is called value initialization whereas the version without is..
Is there a C pre-processor which eliminates #ifdef blocks based on values defined/undefined? http://stackoverflow.com/questions/525283/is-there-a-c-pre-processor-which-eliminates-ifdef-blocks-based-on-values-define invitation to confusion. I would much prefer it to include parentheses around the sets of ' ' conditions as in the original #if defined..
How can i use member initialization list to initialize it? http://stackoverflow.com/questions/5602030/how-can-i-use-member-initialization-list-to-initialize-it §8.5 7 An object whose initializer is an empty set of parentheses i.e. shall be value initialized. And from §8.5 5 To value initialize..
Do the parentheses after the type name make a difference with new? http://stackoverflow.com/questions/620137/do-the-parentheses-after-the-type-name-make-a-difference-with-new the parentheses after the type name make a difference with new If 'Test' is..
C++, __try and try/catch/finally http://stackoverflow.com/questions/7049502/c-try-and-try-catch-finally
Boolean expression (grammar) parser in c++ http://stackoverflow.com/questions/8706356/boolean-expression-grammar-parser-in-c handling of the precedence rules by adding redundant parentheses result a b ^ c d a b result a b ^ c d a b result a b result..
C++ templates that accept only certain types http://stackoverflow.com/questions/874298/c-templates-that-accept-only-certain-types BOOST_STATIC_ASSERT is_base_of List T value Yes the double parentheses are needed otherwise the comma will be seen as macro argument..
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