modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/920710-1.c (about)

     1  main()
     2  {
     3    if ((double) 18446744073709551615ULL < 1.84467440737095e+19 ||
     4        (double) 18446744073709551615ULL > 1.84467440737096e+19)
     5      abort();
     6  
     7    if (16777217L != (float)16777217e0)
     8      abort();
     9  
    10    exit(0);
    11  }