modified-pointer-error.c

#include <stdio.h>
#include <stdlib.h>

static const int BUFSIZE = 256;

int main(int argc, char *argv[])
{
    char *buffer = (char *)malloc(BUFSIZE);
    if (buffer == NULL) {
        fprintf(stderr, "out of memory");
        return -1;
    }
    buffer++;  //  wrong.
    free(buffer);
    return 0;
}