Thread: bit manipulation need help urgent

Code:

please help me with the following c code

Bit manipulation: 
a. In the following code snippet: 
i. Replace xxxx with code that sets bit 3 of variable a. 
ii. Replace zzzzz with code that sets a equal to b with bit 4 cleared 
iii. Replace mmm with code that sets a equal to b with bit 5 set and bit 7 cleared 

int myfunc(int b) 
{ 
int a = 0; 
if (b == 10) 
xxxx // set bit 3 of a 
else if (b == 20) 
zzzzzz // a = b with bit 4 cleared 
else 
mmmmm // a = b with bit 5 set and 7 cleared 
return a; 
}

This may help you out: Bitwise Operators in C

Code:

Hi Syscal


I have some doubts here.


To set bit3 of variable a, 
I used this way

void set_bit3(void) // set bit 3 of a 
{
a |= BIT3;
}


Is it correcT?