How to access individual characters in an array?

This is my code:

Code:

char get_bits_squeeze(char num, char mask)
{
	num = print32bits(num);
	mask = print32bits(mask);
	char activeBits;
	for (int i=0;i<32;i++)
	{	if (mask[i]=='1')
			strcat(activeBits,num[i]);
	}
	return activeBits;
}

(num and mask represent 32-char long bit sequences)

I compile via gcc and I get this error:

Code:

error: subscripted value is neither array nor pointer
error: subscripted value is neither array nor pointer

referring to mask[i] and num[i], so how do I access the individual char at a given point?

Code:

char get_bits_squeeze(char num, char mask)

That's a single character you've got for an argument, not an array.


Quzah.

pass this instead

Code:

char get_bits_squeeze(char * num, char * mask)

or

Code:

char get_bits_squeeze(char num[], char mask[])