During value or variable assignment to a variable, it is required to assign value or variable of the same data type. To. void pointer in C / C++. extract each of those number from my string then read in each number and type cast it as a character. error C2440: '=' : cannot convert from 'void *' to 'int Now let us take the code in OP. Type conversions and type safety | Microsoft Docs An rvalue of type "pointer to cv T," where T is an object type, can be converted to an rvalue of type "pointer to cv void.". 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. The C++ static_cast is defined as the operator which has to convert the variable from one data type into another data type mainly it transform into float data type the compiler only done this conversion in the static_cast because it constantly focus on the const types like const_cast, reinterpret_cast it also casting from one type into another type same like . The result of the expression static_­cast<T>(v) is the result of converting the expression v to type T. If T is an lvalue reference type or an rvalue reference to function type, the result is an lvalue; if T is an rvalue reference to object type, the result is an xvalue; otherwise, the result is a prvalue. std::static_pointer_cast, std::dynamic_pointer_cast, std ... - Reference So you would typically do something like. a.) To print the content of a void pointer, we use the static_cast operator. increment of void * . From b508dc410e65289df470684d407e0911bfce3366 Mon Sep 17 00:00:00 2001 From: Hib Eris Date: Tue, 11 Jun 2013 10:26:45 +0200 Subject: [PATCH] Use reinterpret_cast . iS;), but never declared a variable of type iS within the union. . In your other piece of code, you can then just cast it back to a std::shared_ptr and delete the temporary std::shared_ptr in heap memory. This means that no checks are made at the run-time to ensure that the cast performed is valid or not. For example, char takes 1 byte, int takes 4 bytes (in modern compilers), and pointer variable stores the address of the first byte of that memory location, so by . I can't just change myBytes to type char, can I? std::initializer_list::size_type 的 static_cast<int> 吐出"无效转换"错误(static ... Why can't I static_cast to a pointer type? - C / C++ I have created a small example here. void* and casts, in C and C++ - Eli Bendersky's website

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