🚀 go-pugleaf

/*
 * I believe this may be a bug in version 1.4 of the C compiler.
 * With the -pedantic switch, I am unable to increment a void pointer.
 * Here is a copy of the results I get:
 *
 * chinook-peshman% gcc -pedantic -o ped.o ped.c
 * ped.c: In function tfunc:
 * ped.c:24: invalid lvalue in increment
 * ped.c:25: invalid lvalue in assignment
 * ped.c:26: invalid lvalue in assignment
 * chinook-peshman% 
 *
 * The closest I can come to incrementing a void pointer is to assign it
 * to a pointer to the appropriate type and increment that.
 *
 * I apologies if this is simply a result of my ignorance.  In that event,
 * please let me know the correct way to do this.
 */
void tfunc(void *voidp)
{
    int *intp;

/* this stuff does not work */
    ((int *)voidp)++;
    ((int *)voidp) += 1;
    ((int *)voidp) = ((int *)voidp) + 1;

/* but this stuff does */
    intp = (int *)voidp;
    intp++;
}
/* Steve Peshman */
/* I'm told I can be reached at peshmanS@med.ge.com */