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  1. #include <stdio.h>
  2.  
  3. volatile union{
  4.     unsigned char Table_ALL[2];
  5.     struct{
  6.         union {
  7.                 unsigned char Byte ;
  8.                 struct {
  9.                         unsigned char C1_1:1;
  10.                         unsigned char C1_2:1;
  11.                         unsigned char C1_3:1;
  12.                         unsigned char C1_4:1;
  13.                         unsigned char C1_5:1;
  14.                         unsigned char C1_6:1;
  15.                         unsigned char C1_7:1;
  16.                         unsigned char C1_8:1;
  17.                 }BIT;
  18.         } S1_C1;
  19.  
  20.         union {
  21.                 unsigned char Byte ;
  22.                 struct {
  23.                         unsigned char C2_1:1;
  24.                         unsigned char C2_2:1;
  25.                         unsigned char C2_3:1;
  26.                         unsigned char C2_4:1;
  27.                         unsigned char C2_5:1;
  28.                         unsigned char C2_6:1;
  29.                         unsigned char C2_7:1;
  30.                         unsigned char C2_8:1;
  31.                 }BIT;
  32.         } S1_C2;
  33.     }S1;
  34. }Table;
  35.  
  36.  
  37. int main(void) {
  38. 	// your code goes here
  39. 	printf("Table_ALL[0] = %d\n", Table.Table_ALL[0]);
  40. 	printf("Table_ALL[1] = %d\n", Table.Table_ALL[1]);
  41.  
  42. 	printf("Write 1 to S1_C1.Byte\n");
  43. 	Table.S1.S1_C1.Byte = 1;
  44. 	printf("S1.S1_C1.Byte = %d\n", Table.S1.S1_C1.Byte);
  45. 	printf("S1.S1_C2.Byte = %d\n", Table.S1.S1_C2.Byte);
  46.  
  47. 	printf("Table_ALL[0] = %d\n", Table.Table_ALL[0]);
  48. 	printf("Table_ALL[1] = %d\n", Table.Table_ALL[1]);
  49.  
  50. 	printf("Write 2 to S1_C2.Byte\n");
  51. 	Table.S1.S1_C2.Byte = 2;
  52. 	printf("S1.S1_C1.Byte = %d\n", Table.S1.S1_C1.Byte);
  53. 	printf("S1.S1_C2.Byte = %d\n", Table.S1.S1_C2.Byte);
  54.  
  55. 	printf("Table_ALL[0] = %d\n", Table.Table_ALL[0]);
  56. 	printf("Table_ALL[1] = %d\n", Table.Table_ALL[1]);
  57. 	return 0;
  58. }
Success #stdin #stdout 0s 4364KB
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stdin
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Standard input is empty
stdout
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Table_ALL[0] = 0
Table_ALL[1] = 0
Write 1 to S1_C1.Byte
S1.S1_C1.Byte = 1
S1.S1_C2.Byte = 0
Table_ALL[0] = 1
Table_ALL[1] = 0
Write 2 to S1_C2.Byte
S1.S1_C1.Byte = 1
S1.S1_C2.Byte = 2
Table_ALL[0] = 1
Table_ALL[1] = 2
https://ideone.com/ZH9iLg
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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