declaration Questions

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a template parameter can be used in another template parameter that follows it this way : template<typename T, T N> struct s { }; But is it possible to reference "T" if it is declared afte...
Influx asked 18/9, 2009 at 22:48

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In Stroustrup's The C++ Programming Language: Special Edition (3rd Ed), Stroustrup writes that the declaration and initialization of variables in the conditionals of control statements is not only ...

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Is there any way to do this in a condensed form? GLfloat coordinates[8]; ... coordinates[0] = 1.0f; coordinates[1] = 0.0f; coordinates[2] = 1.0f; coordinates[3] = 1.0f; coordinates[4] = 0.0f; coor...
Lima asked 20/8, 2010 at 22:55

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I just noticed that int arr2[(777, 100)] is a legal array declarator, while int arr1[777, 100] is not. A more verbose example for compiling would be this #include <stdio.h> void f(int i) { ...

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I'm a beginner and I'm doing an exercise following a book. Below is my code and i got this "Missing partial modifier on declaration of type 'Windowsform.Form1'; another partial declaration of thi...
Consume asked 12/10, 2012 at 20:14

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My project consists of only two source files: a.cpp: const int n = 8; b.cpp: extern const int n; int main() { // error LNK2001: unresolved external symbol "int const n" (?n@@3HB) int m = n;...
John asked 15/2, 2013 at 12:24

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I want to declare a variable in SQLite and use it in insert operation. Like in MS SQL: declare @name as varchar(10) set name = 'name' select * from table where name = @name For example, I will ...
Eyler asked 12/10, 2011 at 11:34

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How do I understand following complicated declarations? char (*(*f())[])(); char (*(*X[3])())[5]; void (*f)(int,void (*)()); char far *far *ptr; typedef void (*pfun)(int,float); int **(*f)(i...
Olshausen asked 19/9, 2009 at 16:8

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should I use bool __declspec(dllexport) function() { return true; } or __declspec(dllexport) bool function() { return true; } what is the difference between these two? Will this affect ...
Inmate asked 28/11, 2012 at 20:31

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Why is volatile needed in C? What is it used for? What will it do?
Mascot asked 29/10, 2008 at 8:36

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I've seen this answered before, but they don't seem to cover this specific use case (or they don't work/help) import {Route} from 'vue-router'; export const detailRoute = { path: '/detail/:id',...
Newly asked 10/5, 2017 at 18:21

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This is tiny snippet of my code. #include <stdio.h> #include <unistd.h> #include <stdlib.h> #include <time.h> #include <sys/stat.h> #include <sys/wait.h> ...
Higinbotham asked 29/3, 2011 at 5:37

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In an Eclipse SVN project I have a problem; when I tried to open a declaration of one class, I got this error: Problems opening an editor Reason : projectname does not exist. Also refactoring d...
Admix asked 8/1, 2013 at 1:45

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I've recently decided that I just have to finally learn C/C++, and there is one thing I do not really understand about pointers or more precisely, their definition. How about these examples: int...
Gasiform asked 7/10, 2008 at 21:2

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I like the fact that Go doesn't give me a million ways to do simple things – to borrow from The Zen of Python, “There should be one – and preferably only one – obvious way to do it.” However, I'm ...
Shimmery asked 11/7, 2013 at 23:48

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The C23 standard apparently has introduced using "auto" keyword for auto type deduction, see here, just like in C++11. However, there seems to be some differences. According to here, http...
Fyrd asked 14/5, 2023 at 17:33

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What's the real difference between declaring an array like this: var myArray = new Array(); and var myArray = [];
Tidy asked 31/5, 2009 at 11:23

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In The C Programming Language, 2nd Edition, by authors Brian W. Kernighan and Dennis M. Ritchie, they talk about declarators and direct-declarators. The discussion starts in the book on p. 122 with...

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Is it possible to declare a variable in c++ without instantiating it? I want to do something like this: Animal a; if( happyDay() ) a( "puppies" ); //constructor call else a( "toads" ); Basial...
Feckless asked 29/4, 2009 at 0:16

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I'm writing a typescript function that accepts a numeric array (i.e., type: number[]) and calculates its mean. In addition, I want to account for when the input array might contain some null values...
Apply asked 3/3, 2022 at 9:0

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I would like to define a class type (type alias) for a generic class. I would like to do this so users of unit b can have access to TMyType without using unit a. I have units like this: unit a; int...
Sanson asked 8/4, 2012 at 2:50

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In JavaScript, it is possible to declare multiple variables like this: var variable1 = "Hello, World!"; var variable2 = "Testing..."; var variable3 = 42; ...or like this: var v...
Romine asked 29/3, 2009 at 4:37

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Is it possible to define a global variable in a JavaScript function? I want use the trailimage variable (declared in the makeObj function) in other functions. <html xmlns="http://www.w3.org...
Refractometer asked 26/4, 2011 at 6:36

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class my_class { ... my_class(my_class const &) = delete; ... }; What does = delete mean in that context? Are there any other "modifiers" (other than = 0 and = delete)?
Jobye asked 1/4, 2011 at 13:14

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