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  1. #include <limits.h>
  2. #include <stdio.h>
  3.  
  4. struct OneBit {
  5.     unsigned int value:1;
  6. };
  7. typedef struct OneBit onebit;
  8.  
  9. int main(void) {
  10.     onebit x;
  11.     x.value = 1;
  12.     x.value++;
  13.     printf("1 incremented is %d\n", x.value);
  14.     printf("each object of type 'onebit' needs %d bytes (%d bits)\n",
  15.           (int)sizeof x, CHAR_BIT * (int)sizeof x);
  16.     return 0;
  17. }
Success #stdin #stdout 0.01s 1720KB
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stdin
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Standard input is empty
stdout
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1 incremented is 0
each object of type 'onebit' needs 4 bytes (32 bits)
https://ideone.com/tjVSBA
language:
C99 (gcc 8.3)
created:
11 years ago
visibility:
secret

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