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  1. #include <stdio.h>
  2. #include <float.h>
  3. #include <math.h>
  4.  
  5. static void test_scanf(const char *s)
  6. {
  7.     double x1, x2;
  8.  
  9.     if ((sscanf(s, "%lf %lf", &x1, &x2)) == 2)
  10.     {
  11.         printf("%s: %e, %e (exponential form)\n", s, x1, x2);
  12.         printf("    %g %g\n", x1, x2);
  13.         printf("    %.7g %.7g\n", x1, x2);
  14.     }
  15.     else
  16.     {
  17.         printf("%s: invalid input.\n", s);
  18.     }
  19. }
  20.  
  21. int main(void)
  22. {
  23.     test_scanf("6369.015 66159.129");
  24. }
  25.  
Success #stdin #stdout 0s 9432KB
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stdin
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Standard input is empty
stdout
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6369.015 66159.129: 6.369015e+03, 6.615913e+04 (exponential form)
    6369.02 66159.1
    6369.015 66159.13
https://ideone.com/uIAhac
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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