WebJun 27, 2024 · A void pointer means it can accept any pointer type: void foo ( void *p) { printf ( "%p\n", p); } int main () { int x [10]; char c [5] = "abcde" ; void* p = x; p = c; foo (x); foo (c); return 0 ; } So if you are planning on creating a function that can take different types of data, it can be handy to pass it to a void pointer parameter. WebOct 11, 2024 · Any valid pointer to void can be converted to intptr_t or uintptr_t and back with no change in value. (See INT36-EX2 .) The C Standard guarantees that a pointer to void may be converted to or from a pointer to any object type and back again and that the result must compare equal to the original pointer.
Unsafe code, pointers to data, and function pointers
WebAug 11, 2024 · A void pointer can be used to point at a variable of any data type. It can be reused to point at any data type we want to. It is declared like this: void *pointerVariableName = NULL; Since they are very general in nature, they are also known as generic pointers. With their flexibility, void pointers also bring some constraints. the wound in my heart chen shang novel
Pointers And Pointer Operations In C++ - Software …
WebFor a start, if you want a pointer to that structure, why don't you just define it as a pointer to that structure: testStructure *ptr; The type given for a variable in its declation or definition is fixed; if you declare ptr as a pointer to void, then it will always be a pointer to void.WebAnswer (1 of 4): Technically, there is nothing wrong with assigning one void pointer to another. However, there should be no need for void pointers in a normal C++ program. …WebSep 29, 2024 · For more information about pointer-related operators, see Pointer-related operators. Any pointer type can be implicitly converted to a void* type. Any pointer type can be assigned the value null. Any pointer type can be explicitly converted to any other pointer type using a cast expression.the wound has dehisced