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  1. #include <stdio.h>  //scanf
  2. #include <stdlib.h> //EXIT_SUCCESS
  3. #include <math.h>   //floorf
  4.  
  5.  
  6. int isInt(float f) {
  7.     return (floorf(f) == f);
  8. }
  9.  
  10. int main(void) {
  11.     float val = 0.0;
  12.  
  13.     scanf("%f", &val);
  14.     printf("val == %.8f\n", val);
  15.     printf("is int:  %d (1 TAK, 0 NIE)\n", isInt(val));
  16.     return EXIT_SUCCESS;
  17. }
Success #stdin #stdout 0s 2296KB
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stdin
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numm
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stdout
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val == 0.00000000
is int:  1 (1 TAK, 0 NIE)
https://ideone.com/tENdQ7
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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