cftest.c

#include <CoreFoundation/CoreFoundation.h>
#include <stdio.h>

int main(int argc, char** argv)
{
    CFStringRef str = CFStringCreateWithCString(NULL, argv[0], kCFStringEncodingUTF8);
    printf("Ref Count: %d\n", CFGetRetainCount(str));
    return 0;
}

// Build with:
// $ clang -o cftest cftest.c -framework CoreFoundation
//
// Run with:
// $ ./cftest