reference

问题 I am using eConnect SDK 11.0. I have a windows service app in which i had added reference of GP sdk. 1) Microsoft.Dynamics.GP.eConnect.dll 2) Microsoft.Dynamics.GP.eConnect.Serialization.dll When i build my project it had built successfully but gave me the following warning 1) There was a mismatch between the processor architecture of the project being built "MSIL" and the processor architecture of the reference "Microsoft.Dynamics.GP.eConnect, Version=11.0.0.0, Culture=neutral,

问题 Section "15.6.2 Initializing bases and members" (N4713) has the following example following item 11: struct A { A() = default; // OK A(int v) : v(v) { } // OK const int& v = 42; // OK }; A a1; // error: ill-formed binding of temporary to reference A a2(1); // OK, unfortunately What is unfortunate about the construction in the last line of the example? I searched the whole reference for other occurrences of "unfortunate" behaviour that were permitted but I could find none. If it was

问题 Section "15.6.2 Initializing bases and members" (N4713) has the following example following item 11: struct A { A() = default; // OK A(int v) : v(v) { } // OK const int& v = 42; // OK }; A a1; // error: ill-formed binding of temporary to reference A a2(1); // OK, unfortunately What is unfortunate about the construction in the last line of the example? I searched the whole reference for other occurrences of "unfortunate" behaviour that were permitted but I could find none. If it was

问题 Every time I try to compile my code I get error: cannot convert parameter 1 from 'int *' to 'int *&' The test code looks like this: void set (int *&val){ *val = 10; } int main(){ int myVal; int *pMyVal = new int; set(&myVal); // <- this causes trouble set(pMyVal); // <- however, this doesn't } I'd like to call that function in a single shot without creating a pointer somewhere only to pass it. And as pointers don't have constructors, something like this can't be done: set(int*(&myVal)); Is

问题 Every time I try to compile my code I get error: cannot convert parameter 1 from 'int *' to 'int *&' The test code looks like this: void set (int *&val){ *val = 10; } int main(){ int myVal; int *pMyVal = new int; set(&myVal); // <- this causes trouble set(pMyVal); // <- however, this doesn't } I'd like to call that function in a single shot without creating a pointer somewhere only to pass it. And as pointers don't have constructors, something like this can't be done: set(int*(&myVal)); Is

问题 Every time I try to compile my code I get error: cannot convert parameter 1 from 'int *' to 'int *&' The test code looks like this: void set (int *&val){ *val = 10; } int main(){ int myVal; int *pMyVal = new int; set(&myVal); // <- this causes trouble set(pMyVal); // <- however, this doesn't } I'd like to call that function in a single shot without creating a pointer somewhere only to pass it. And as pointers don't have constructors, something like this can't be done: set(int*(&myVal)); Is

问题 Every time I try to compile my code I get error: cannot convert parameter 1 from 'int *' to 'int *&' The test code looks like this: void set (int *&val){ *val = 10; } int main(){ int myVal; int *pMyVal = new int; set(&myVal); // <- this causes trouble set(pMyVal); // <- however, this doesn't } I'd like to call that function in a single shot without creating a pointer somewhere only to pass it. And as pointers don't have constructors, something like this can't be done: set(int*(&myVal)); Is

问题 Every time I try to compile my code I get error: cannot convert parameter 1 from 'int *' to 'int *&' The test code looks like this: void set (int *&val){ *val = 10; } int main(){ int myVal; int *pMyVal = new int; set(&myVal); // <- this causes trouble set(pMyVal); // <- however, this doesn't } I'd like to call that function in a single shot without creating a pointer somewhere only to pass it. And as pointers don't have constructors, something like this can't be done: set(int*(&myVal)); Is

问题 I am trying to use the newtype pattern to wrap a pre-existing type. That inner type has a modify method which lets us work with a borrowed mutable value in a callback: struct Val; struct Inner(Val); impl Inner { fn modify<F>(&self, f: F) where F: FnOnce(&mut Val) -> &mut Val { … } } Now I want to provide a very similar method on my newtype Outer , which however should not work on Val s but again a newtype wrapper WrappedVal : struct Outer(Inner); struct WrappedVal(Val); impl Outer { fn modify

问题 From what I understand by now, I can say that a reference in C# is a kind of pointer to an object which has reference count and knows about the type compatibility. My question is not about how a value type is different than a reference type, but more about how a reference is implemented. I have read this post about what differences are between references and pointers, but that does not cover that much about what a reference is but it it's describing more it's properties compared with a