array-in-a-matrix/hamming-code
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return sus arrays

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array-in-a-matrix 2021-07-06 04:25:27 -04:00
parent 34f0e8ec34
commit ce38ddb276
2 changed files with 39 additions and 23 deletions
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61
index.c
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@ -10,17 +10,17 @@ int random_number(int lower, int upper);
void print_matrix(int matrix[GRID_SIZE][GRID_SIZE]); void print_matrix(int matrix[GRID_SIZE][GRID_SIZE]);
void induce_noise(int matrix[GRID_SIZE][GRID_SIZE]); void induce_noise(int matrix[GRID_SIZE][GRID_SIZE]);
void parity_check(int matrix[GRID_SIZE][GRID_SIZE]); void parity_check(int matrix[GRID_SIZE][GRID_SIZE]);
void error_check(int matrix[GRID_SIZE][GRID_SIZE]); int error_check(int matrix[GRID_SIZE][GRID_SIZE]);
void parity_check_1(int matrix[GRID_SIZE][GRID_SIZE]); void parity_check_1(int matrix[GRID_SIZE][GRID_SIZE]);
void parity_check_2(int matrix[GRID_SIZE][GRID_SIZE]); void parity_check_2(int matrix[GRID_SIZE][GRID_SIZE]);
void parity_check_3(int matrix[GRID_SIZE][GRID_SIZE]); void parity_check_3(int matrix[GRID_SIZE][GRID_SIZE]);
void parity_check_4(int matrix[GRID_SIZE][GRID_SIZE]); void parity_check_4(int matrix[GRID_SIZE][GRID_SIZE]);
void error_check_1(int matrix[GRID_SIZE][GRID_SIZE]); int * error_check_1(int matrix[GRID_SIZE][GRID_SIZE]);
void error_check_2(int matrix[GRID_SIZE][GRID_SIZE]); int * error_check_2(int matrix[GRID_SIZE][GRID_SIZE]);
void error_check_3(int matrix[GRID_SIZE][GRID_SIZE]); int * error_check_3(int matrix[GRID_SIZE][GRID_SIZE]);
void error_check_4(int matrix[GRID_SIZE][GRID_SIZE]); int * error_check_4(int matrix[GRID_SIZE][GRID_SIZE]);
int main() int main()
{ {
@ -44,7 +44,6 @@ int main()
printf("\n"); printf("\n");
printf("\n"); printf("\n");
error_check(message); error_check(message);
return 0; return 0;
}; };
@ -92,12 +91,19 @@ void parity_check(int matrix[GRID_SIZE][GRID_SIZE])
parity_check_4(matrix); parity_check_4(matrix);
}; };
void error_check(int matrix[GRID_SIZE][GRID_SIZE]) int error_check(int matrix[GRID_SIZE][GRID_SIZE])
{ {
error_check_1(matrix); int * sus_array_1 = error_check_1(matrix);
error_check_2(matrix); int * sus_array_2 = error_check_2(matrix);
error_check_3(matrix); int * sus_array_3 = error_check_3(matrix);
error_check_4(matrix); int * sus_array_4 = error_check_4(matrix);
printf("(%i, %i)\n", sus_array_1[0], sus_array_1[1]);
printf("(%i, %i)\n", sus_array_2[0], sus_array_2[1]);
printf("(%i, %i)\n", sus_array_3[0], sus_array_3[1]);
printf("(%i, %i)\n", sus_array_4[0], sus_array_4[1]);
return 0;
}; };
@ -234,7 +240,7 @@ void parity_check_4(int matrix[GRID_SIZE][GRID_SIZE])
}; };
void error_check_1(int matrix[GRID_SIZE][GRID_SIZE]) int * error_check_1(int matrix[GRID_SIZE][GRID_SIZE])
{ {
int counter = 0; int counter = 0;
int col_1[GRID_SIZE], col_3[GRID_SIZE]; int col_1[GRID_SIZE], col_3[GRID_SIZE];
@ -259,15 +265,17 @@ void error_check_1(int matrix[GRID_SIZE][GRID_SIZE])
if ((counter % 2) != 0) if ((counter % 2) != 0)
{ {
printf("Error in col 1 or col 3\n"); static int sus[2] = {1, 3};
return sus;
} }
else else
{ {
printf("Message is unharmed.\n"); static int sus[2] = {-1, -1};
return sus;
}; };
}; };
void error_check_2(int matrix[GRID_SIZE][GRID_SIZE]) int * error_check_2(int matrix[GRID_SIZE][GRID_SIZE])
{ {
int counter = 0; int counter = 0;
int col_2[GRID_SIZE], col_3[GRID_SIZE]; int col_2[GRID_SIZE], col_3[GRID_SIZE];
@ -292,15 +300,17 @@ void error_check_2(int matrix[GRID_SIZE][GRID_SIZE])
if ((counter % 2) != 0) if ((counter % 2) != 0)
{ {
printf("Error in col 2 or col 3\n"); static int sus[2] = {2, 3};
return sus;
} }
else else
{ {
printf("Message is unharmed.\n"); static int sus[2] = {-1, -1};
return sus;
}; };
}; };
void error_check_3(int matrix[GRID_SIZE][GRID_SIZE]) int * error_check_3(int matrix[GRID_SIZE][GRID_SIZE])
{ {
int counter = 0; int counter = 0;
int row_1[GRID_SIZE], row_3[GRID_SIZE]; int row_1[GRID_SIZE], row_3[GRID_SIZE];
@ -322,17 +332,20 @@ void error_check_3(int matrix[GRID_SIZE][GRID_SIZE])
counter++; counter++;
}; };
}; };
if ((counter % 2) != 0) if ((counter % 2) != 0)
{ {
printf("Error in row 1 or row 3\n"); static int sus[2] = {1, 3};
return sus;
} }
else else
{ {
printf("Message is unharmed.\n"); static int sus[2] = {-1, -1};
return sus;
}; };
}; };
void error_check_4(int matrix[GRID_SIZE][GRID_SIZE]) int * error_check_4(int matrix[GRID_SIZE][GRID_SIZE])
{ {
int counter = 0; int counter = 0;
int row_2[GRID_SIZE], row_3[GRID_SIZE]; int row_2[GRID_SIZE], row_3[GRID_SIZE];
@ -357,10 +370,12 @@ void error_check_4(int matrix[GRID_SIZE][GRID_SIZE])
if ((counter % 2) != 0) if ((counter % 2) != 0)
{ {
printf("Error in row 2 or row 3\n"); static int sus[2] = {2, 3};
return sus;
} }
else else
{ {
printf("Message is unharmed.\n"); static int sus[2] = {-1, -1};
return sus;
}; };
}; };

1
makefile
View file

@ -1,4 +1,5 @@
all: all:
clear
gcc index.c -o hamming.o gcc index.c -o hamming.o
chmod +x hamming.o chmod +x hamming.o
./hamming.o ./hamming.o