fig05_16.cpp

来自「经典vc教程的例子程序」· C++ 代码 · 共 24 行

// Fig. 5.16: fig05_16.cpp
// Sizeof operator when used on an array name
// returns the number of bytes in the array.
#include <iostream.h>

size_t getSize( float * );

int main()
{
   float array[ 20 ];

   cout << "The number of bytes in the array is "
        << sizeof( array ) 
        << "\nThe number of bytes returned by getSize is "
        << getSize( array ) << endl;

   return 0;
}

size_t getSize( float *ptr )
{
   return sizeof( ptr );
}