foo.cc: In function 'int main()':
foo.cc:13:49: error: unable to find string literal operator 'operator""i' with 'const char [4]', 'long unsigned int' arguments
   13 |                                         printf ("%d-"i+1);
      |                                                 ^~~~~~
foo.cc:17:17: error: unable to find string literal operator 'operator""m' with 'const char [4]', 'long unsigned int' arguments
   17 |         printf ("%d\n"m*1.2+n)
      |                 ^~~~~~~

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