C 中的运算符重载以进行按位运算

Question

我正在尝试使用变量掩码作为指针，可以在下面的多个函数中重复使用。它适用于第一个函数，它只是“mask = (unsigned short*)0;”关闭所有位。现在我正在使用按位运算符，我无法让该函数在两种指针类型上工作。 是否有可能在非类对象指针上创建运算符重载函数？

如果是这样我做错了什么？

unsigned short mask operator << (unsigned short *mask, int *nbits) {
    mask <<= nbits;
    return mask;
}

//I expected the function above to work as operator overloading function like I practiced in c++ on class objects.

unsigned short center_Lightson(unsigned short *mask, int*nbits, int*sbit, unsigned short *wrd)
{
    mask = (unsigned short*)~0;
    mask <<= nbits;
    mask = ~mask;
    mask <<= sbit;
    mask = ~mask;
    wrd = mask;
    printbits(wrd);
    return mask;
}

unsigned short left_Lightson(unsigned short*mask, int*nbits, int*sbit, unsigned short* wrd) {
    *mask |= (~((unsigned short)~0 << *nbits)) << *sbit;
    wrd = mask;
    printbits(wrd);
    return mask;
}

compiler warnings found:
Severity    Code    Description Project File    Line    Suppression State
Error   C2296   '<<=': illegal, left operand has type 'unsigned short *'    Project17   C:\Users\Student\Downloads\26B_H_4\26B_H_4B.c   201 
Error   C2297   '<<=': illegal, right operand has type 'int *'  Project17   C:\Users\Student\Downloads\26B_H_4\26B_H_4B.c   201 
Error   C2171   '~': illegal on operands of type 'unsigned short *' Project17   C:\Users\Student\Downloads\26B_H_4\26B_H_4B.c   202 
Error   C2296   '<<=': illegal, left operand has type 'unsigned short *'    Project17   C:\Users\Student\Downloads\26B_H_4\26B_H_4B.c   203 
Error   C2297   '<<=': illegal, right operand has type 'int *'  Project17   C:\Users\Student\Downloads\26B_H_4\26B_H_4B.c   203 
Error   C2171   '~': illegal on operands of type 'unsigned short *' Project17   C:\Users\Student\Downloads\26B_H_4\26B_H_4B.c   204 `