The " static_cast " operator performs a normal cast. reinterpret_cast <type> (value): go nuts. This can cast related type classes. The value of *ptr1: 2. malloc is not "cancelled", in this case it's just that the rules of C++ do not allow implicit conversion from void * to char *. array [0].u2.iS = static_cast<iS> (1); But actually, it looks like you have provided the definition for an enum type (enum {details.} extract each of those number from my string then read in each number and type cast it as a character. error: cast from 'char*' to 'int' loses precision - 编程猎人 The reinterpret_cast operator cannot cast away . Oct 12, 2013 at 2:23pm. The static_cast operator converts variable j to type float . C-Style casting, using the (type)variable syntax. c - invalid cast from type 'void*' to type 'int*' - Stack Overflow 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. static_cast Casting Operator Explained With Simple Example This works perfectly, until a query returned an Int64. So you would typically do something like. error: invalid static_cast from type 'xxx*' to type 'yyy*' - CSDN Any expression can be cast to type [code ]void[/code] (which means that the result of the expression is ignored), but it's not legal to ca. From. Its purpose is to ensure that a result of the type conversion points to . I second Elysia's recommendations. Explanation Only the following conversions can be done with static_cast, except when such conversions would cast away constness or volatility . increment of void * . std::chrono::duration_cast - cppreference.com You should . The conversion from an unscoped enumeration type to an arithmetic type is an implicit conversion; it is possible, but not necessary, to use static_cast. Invalid conversion from int to enum - C / C++ This doesn't work because you are trying to dereference a void pointer (illegal), and cast the result. static_pointer_cast - C++ Reference - cplusplus.com invalid conversion from void* to int*

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