Is there an alternative approach to perform the conversion? c++ - Почему компиляторы ведут себя по-другому, когда static_cast (ing ... static_cast: This is used for the normal/ordinary type conversion. valid. static_cast和dynamic_cast的区别_zhexiao27的博客-CSDN博客 For example: 1. nullptr vs NULL. What Exactly Is nullptr in C++ | HackerNoon In the next expression, we add integer and character ('a' ->97) and then . Each individual type in the C type system has several qualified versions of that type, corresponding to one, two, or all three of the const, volatile, and, for pointers to object types, restrict qualifiers. 1) const_cast can be used to change non-const class members inside a const member function. Message=Specified cast is not valid. 3 It looks like a compiler extension where __m256i is a typedef for 4 long long int s to form a 256 bit integer type. In C++, a void pointer can point to a free function (a function that's not a member of a class), or to a static member function, but not to a non-static member function. Example 2: Printing the Content of Void Pointer. level 1 . 3. short a=2000; int b; b=a; Here, the value of a is promoted from short to int without the need of any explicit operator. So, whether static_cast will . error: invalid static_cast from type 'xxx*' to type 'yyy*' - CSDN Mycode: recordeddataR = long (values [1]); I think I need to convert my values [1] to a char string and use "atol" but I don't know how. When using malloc / free in C++, you have to cast the void* pointer as returned by malloc to your desired pointer type: FullList = static_cast<int*> (malloc (N * sizeof (int))); l = static_cast<int*> (malloc (N * sizeof (int))); The reason for this (when simply copying over C code) is that in C these casts are allowed to be performed implicitly . 11.14 — Void pointers - Learn C++ - LearnCpp.com The void pointer, also known as the generic pointer, is a special type of pointer that can be pointed at objects of any data type! c++ - Invalid conversion from void* to char* [SOLVED] | DaniWeb I am getting the following runtime exception; System.InvalidCastException was caught. This is also the cast responsible for implicit type coercion and can also be called explicitly. The static_­cast operator shall not cast away constness. This is known as implicit conversion. Can we typecast void into int? - Quora The worst ever invented. #define kRamSize 4200 static unsigned char program[kRamSize]; void setup() { } void loop () { int x=program; } . And there are always cases when you need to convert one type into another, which is known as casting. It's just a quick idea. The static cast can perform all the conversions that are done implicitly. I did this code for substituting the typecasting in C++ instead of the above code in C but it doesn't work. static_pointer_cast - C++ Reference - cplusplus.com Invalid conversion from int to enum - C / C++ StackTrace: at System.Data.DataRowExtensions.UnboxT`1.ValueField (Object value) at System.Data.DataRowExtensions.Field [T] (DataRow row, String columnName) at ConsAppAutoGenSql.Program .