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union bitdata {
struct {
unsigned int bit1 : 1;
unsigned int bit2 : 1;
unsigned int bit3 : 1;
unsigned int bit4 : 1;
unsigned int bit5 : 1;
unsigned int bit6 : 1;
unsigned int bit7 : 1;
unsigned int bit8 : 1;
};
unsigned char byte;
} first_byte, second_byte;
<...>
for ( j = 0; j < bytes_count; j++ ) {
unsigned char t;
ret = gzread( gz_fd, &t, sizeof( t ) );
if ( ret != sizeof( t ) ) {
printf( "Failed to read file %s: %s\n", argv[i], strerror( errno ) );
gzclose( gz_fd );
return EXIT_FAILURE;
}
first_byte.byte = t;
second_byte.byte = ready_bytes[j];
first_byte.bit1 = first_byte.bit1 == 0 && second_byte.bit1 == 0 ? 0 : 1;
first_byte.bit2 = first_byte.bit2 == 0 && second_byte.bit2 == 0 ? 0 : 1;
first_byte.bit3 = first_byte.bit3 == 0 && second_byte.bit3 == 0 ? 0 : 1;
first_byte.bit4 = first_byte.bit4 == 0 && second_byte.bit4 == 0 ? 0 : 1;
first_byte.bit5 = first_byte.bit5 == 0 && second_byte.bit5 == 0 ? 0 : 1;
first_byte.bit6 = first_byte.bit6 == 0 && second_byte.bit6 == 0 ? 0 : 1;
first_byte.bit7 = first_byte.bit7 == 0 && second_byte.bit7 == 0 ? 0 : 1;
first_byte.bit8 = first_byte.bit8 == 0 && second_byte.bit8 == 0 ? 0 : 1;
ready_bytes[j] = first_byte.byte;
}
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