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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. typedef char byte;
  5.  
  6. byte* floatToByteArray(float f) {
  7. 	byte* ret = malloc(4 * sizeof(byte));
  8. 	unsigned int asInt = *((int*)&f);
  9.  
  10. 	int i;
  11. 	for (i = 0; i < 4; i++) {
  12. 		ret[i] = (asInt >> 8 * i) & 0xFF;
  13. 	}
  14.  
  15. 	return ret;
  16. }
  17.  
  18.  
  19. int main(void) {
  20. 	float f = 1.0;
  21.  
  22. 	byte* asBytes = floatToByteArray(f);
  23.  
  24. 	int i;
  25. 	for(i = 0; i < 4; i++) {
  26. 		printf("Byte #%i: %i\n", i, asBytes[i]);
  27. 	}
  28.  
  29. 	return 0;
  30. }
  31.  
Success #stdin #stdout 0s 2424KB
comments (?)
stdin
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Standard input is empty
stdout
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Byte #0: 0
Byte #1: 0
Byte #2: -128
Byte #3: 63
https://ideone.com/umY1bB
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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