c++ - sprintf for unsigned _int64

Question

I am having following code. output of second %d in sprintf is always shown as zero. I think i am specifying wrong specifiers. Can any one help me in getting write string with right values. And this has to achieved in posix standard. Thanks for inputs

void main() {
    unsigned _int64 dbFileSize = 99;
    unsigned _int64 fileSize = 100;
    char buf[128];
    memset(buf, 0x00, 128);
    sprintf(buf, "
OD DB File Size = %d bytes  XML file size = %d bytes", fileSize, dbFileSize);
    printf("The string is %s ", buf);
    }

Output:

The string is
OD DB File Size = 100 bytes      XML file size = 0 bytes 

Answer 1

You need to use %I64u with Visual C++.

However, on most C/C++ compiler, 64 bit integer is long long. Therefore, adopt to using long long and use %llu.