/ ************************************************************************ * * Purpose: Program to demonstrate passing a pointer to a scalar to * a function. * Author: M J Leslie. * Date: 11-Apr-94 * ************************************************************************/ void add(int*); /* Function declaration */ main() { int i=4; /* variable declaration */ int* ptr; /* int pointer */ ptr = &i; /* 'ptr' now contains the address of 'i' */ printf("i starts out life as %d.\n", i); printf(" *ptr is %d.\n", *ptr); add(ptr); /* Function call */ printf(" i is now %d.\n", i); } /************************************************************************/ void add(int *ptr) /* Function definition */ { ++*ptr; /* Add 1 to the value * pointed too by 'ptr' */ return; }
file: /Techref/language/ccpp/cref/EXAMPLES/pointer_func.c, 0KB, , updated: 1997/4/21 09:52, local time: 2024/8/14 23:04,
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