void *foo(void *a)
{
a = (int *)a;
(*a)PP;
printf( "a = %d\n", *a);
}program is like this, always saying that there are errors in the second and third lines!
void *foo(void *a)
{
a = (int *)a;
(*a)PP;
printf( "a = %d\n", *a);
}program is like this, always saying that there are errors in the second and third lines!
an is void*, and cannot be dereferenced. In addition, the sentence a = (int*) a; is meaningless. You change a to int* , then assign it to a, and then become void * La
C is a statically typed language. When you specify void * a , an is always void * within its valid domain. When you want to use int * , just use a new variable. For example:
void *foo(void *a)
{
int *b = (int *)a;
(*b)PP;
printf("a = %d\n", *b);
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