Add language identifiers

docs/error-messages/compiler-errors-2/compiler-error-c2500.md

@@ -17,7 +17,7 @@ A class cannot be specified as a direct base class more than once. A class can b
 
 The following sample generates C2500:
 
-```
+```cpp
 // C2500.cpp
 // compile with: /c
 class A {};
@@ -27,4 +27,4 @@ class B : public A, public A {};    // C2500
 class C : public A {};
 class D : public A {};
 class E : public C, public D {};
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2502.md

@@ -13,7 +13,7 @@ The base class has more than one access modifier. Only one access modifier (`pub
 
 The following sample generates C2502:
 
-```
+```cpp
 // C2502.cpp
 // compile with: /c
 class A { };
@@ -23,4 +23,4 @@ class C : private public A { };   // C2502
 // OK
 class D : private A {};
 class E : public A, private B {};
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2503.md

@@ -13,7 +13,7 @@ A base class or structure contains a zero-sized array. An array in a class must
 
 The following sample generates C2503:
 
-```
+```cpp
 // C2503.cpp
 // compile with: /c
 class A {
@@ -29,4 +29,4 @@ public:
 };
 
 class D : C {};
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2504.md

@@ -17,7 +17,7 @@ The base class is declared but never defined.  Possible causes:
 
 The following sample generates C2504:
 
-```
+```cpp
 // C2504.cpp
 // compile with: /c
 class A;
@@ -29,4 +29,4 @@ class B : public A {};   // C2504
 ```
 class C{};
 class D : public C {};
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2505.md

@@ -15,7 +15,7 @@ For more information, see [appdomain](../../cpp/appdomain.md) and [process](../.
 
 The following sample generates C2505:
 
-```
+```cpp
 // C2505.cpp
 // compile with: /clr
 
@@ -27,4 +27,4 @@ int main() {
    __declspec(process) int i;   // C2505
    __declspec(appdomain) int j;   // C2505
 }
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2506.md

@@ -17,11 +17,11 @@ See [appdomain](../../cpp/appdomain.md) for more information.
 
 The following sample generates C2506.
 
-```
+```cpp
 // C2506.cpp
 // compile with: /clr /c
 ref struct R {
    __declspec(process) static int n;   // C2506
    int o;   // OK
 };
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2507.md

@@ -13,10 +13,10 @@ A class or structure is declared as `virtual` more than once. Only one `virtual`
 
 The following sample generates C2507:
 
-```
+```cpp
 // C2507.cpp
 // compile with: /c
 class A {};
 class B : virtual virtual public A {};   // C2507
 class C : virtual public A {};   // OK
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2509.md

@@ -15,7 +15,7 @@ The function is not declared in the specified class.
 
 The following sample generates C2509.
 
-```
+```cpp
 // C2509.cpp
 // compile with: /c
 struct A {
@@ -30,4 +30,4 @@ struct B : private A {
 
 int B::vfunc() { return 1; }   // C2509
 int B::vfunc2() { return 1; }   // OK
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2511.md

@@ -19,7 +19,7 @@ No version of the function is declared with the specified parameters.  Possible
 
 The following sample generates C2511:
 
-```
+```cpp
 // C2511.cpp
 // compile with: /c
 class C {
@@ -32,4 +32,4 @@ int C::Func(char *, char *, int i) {   // C2511
 // int C::Func(char *, char *) {
    return 0;
 }
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2513.md

@@ -13,7 +13,7 @@ The type specifier appears in declaration with no variable identifier.
 
 The following sample generates C2513:
 
-```
+```cpp
 // C2513.cpp
 int main() {
    int = 9;   // C2513
@@ -23,7 +23,7 @@ int main() {
 
 This error can also be generated as a result of a compiler conformance work done for Visual Studio .NET 2003: initialization of a typedef no longer allowed. The initialization of a typedef is not allowed by the standard and now generates a compiler error.
 
-```
+```cpp
 // C2513b.cpp
 // compile with: /c
 typedef struct S {
@@ -33,4 +33,4 @@ typedef struct S {
 // } S;
 ```
 
-An alternative would be to delete `typedef` to define a variable with aggregate initializer list, but this is not recommended because it will create a variable with the same name as the type and hide the type name.
+An alternative would be to delete `typedef` to define a variable with aggregate initializer list, but this is not recommended because it will create a variable with the same name as the type and hide the type name.

docs/error-messages/compiler-errors-2/compiler-error-c2514.md

@@ -15,7 +15,7 @@ A class must be fully declared before it can be instantiated.
 
 The following sample generates C2514:
 
-```
+```cpp
 // C2514.cpp
 // compile with: /c
 class f;
@@ -34,4 +34,4 @@ class fmaker {
       return new g(2);   // OK
    }
 };
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2516.md

@@ -13,8 +13,8 @@ The class is derived from a type name defined by a `typedef` statement.
 
 The following sample generates C2516:
 
-```
+```cpp
 // C2516.cpp
 typedef unsigned long ulong;
 class C : public ulong {}; // C2516
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2518.md

@@ -13,10 +13,10 @@ The keywords `class` and `struct` should not appear in a base class list.
 
 The following sample generates C2518:
 
-```
+```cpp
 // C2518.cpp
 // compile with: /c
 class B {};
 class C : public class B {};   // C2518
 class D: public B {};   // OK
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2521.md

@@ -17,7 +17,7 @@ For more information, see [Destructors and finalizers](../../dotnet/how-to-defin
 
 The following sample generates C2521.
 
-```
+```cpp
 // C2521.cpp
 // compile with: /clr
 ref class R {
@@ -35,4 +35,4 @@ int main() {
    R^ r = gcnew R();
    r->CleanUp();
 }
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2523.md

@@ -13,11 +13,11 @@ The name of the destructor must be the class name preceded by a tilde (`~`). The
 
 The following sample generates C2523:
 
-```
+```cpp
 // C2523.cpp
 // compile with: /c
 class A {
    ~B();    // C2523
    ~A();   // OK
 };
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2524.md

@@ -15,7 +15,7 @@ The destructor or finalizer had a parameter list that is not [void](../../cpp/vo
 
 The following code reproduces C2524.
 
-```
+```cpp
 // C2524.cpp
 // compile with: /c
 class A {
@@ -30,7 +30,7 @@ class A {
 
 The following code reproduces C2524.
 
-```
+```cpp
 // C2524_b.cpp
 // compile with: /clr /c
 ref struct I1 {
@@ -39,4 +39,4 @@ protected:
    // try the following line instead
    // !I1();
 };
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2528.md

@@ -13,9 +13,9 @@ You cannot declare a pointer to a reference. Dereference the variable before dec
 
 The following sample generates C2528:
 
-```
+```cpp
 // C2528.cpp
 int i;
 int &ir = i;
 int & (*irptr) = ir;    // C2528
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2529.md

@@ -13,10 +13,10 @@ This error may be fixed by using pointer syntax and declaring a reference to a p
 
 The following sample generates C2529:
 
-```
+```cpp
 // C2529.cpp
 // compile with: /c
 int i;
 int &ri = i;
 int &(&rri) = ri;   // C2529
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2530.md

@@ -21,11 +21,11 @@ You must initialize a reference when it was declared, unless it is declared alre
 
 The following sample generates C2530:
 
-```
+```cpp
 // C2530.cpp
 int main() {
    int i = 0;
    int &j;   // C2530
    int &k = i;   // OK
 }
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2531.md

@@ -13,11 +13,11 @@ References to bit fields are not allowed.
 
 The following sample generates C2531:
 
-```
+```cpp
 // C2531.cpp
 // compile with: /c
 class P {
    int &b1 : 10;   // C2531
    int b2 : 10;   // OK
 };
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2533.md

@@ -15,7 +15,7 @@ A common source of this error is a missing semicolon between the end of a class
 
 The following sample generates C2533, and shows how to fix it:
 
-```
+```cpp
 // C2533.cpp
 // compile with: /c
 class X {
@@ -25,4 +25,4 @@ public:
 
 int X::X() {}   // C2533 - constructor return type not allowed
 X::X() {}   // OK - fix by using no return type
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2534.md

@@ -15,11 +15,11 @@ This error may be fixed by removing the `return` statement from the constructor
 
 The following sample generates C2534:
 
-```
+```cpp
 // C2534.cpp
 class A {
 public:
    int i;
    A() { return i; }   // C2534
 };
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2535.md

@@ -15,12 +15,12 @@ If you get C2535 because of the Dispose function, see [Destructors and finalizer
 
 The following sample generates C2535:
 
-```
+```cpp
 // C2535.cpp
 // compile with: /c
 class C {
 public:
    void func();   // forward declaration
    void func() {}   // C2535
 };
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2537.md

@@ -17,9 +17,9 @@ Possible causes:
 
 The following sample generates C2537:
 
-```
+```cpp
 // C2537.cpp
 // compile with: /c
 extern "c" void func();   // C2537
 extern "C" void func2();   // OK
-```
+```

docs/error-messages/compiler-errors-2/compiler-error-c2540.md

@@ -13,7 +13,7 @@ An array must have a constant bound.
 
 The following sample generates C2540:
 
-```
+```cpp
 // C2540.cpp
 void func(int n, int pC[]) {
    int i = ((int [n])pC)[1];   // C2540
@@ -28,4 +28,4 @@ int main() {
    func(100, pC);
    func2(100, pC);
 }
-```
+```