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  1. #include <math.h>
  2. #include <stdio.h>
  3.  
  4. int main()
  5. {
  6. double pz = 0.0, nz = -0.0;
  7. printf("%f %f %d\n", atan2(pz, pz), atan2(pz, nz), pz == nz);
  8. return 0;
  9. }
Success #stdin #stdout 0s 2112KB
stdin
Standard input is empty
stdout
0.000000 3.141593 1