c - Proper way to write 'one but not both' situation? -

this question arbitrary i'll try explain best can. i'm looping through 2 strings of unknown size.

bool check(char *str1, char *str2) {     char special = 'k';      (int size_t = 0;              ; i++)     {      } } 

i want terminating condition of loop following:

leave loop if either str1[i] == special or str2[i] == special, but not both.

for question, ignore fact might segment fault since know neither size nor checking 0x00.

i know how write it's messy , involves using ternary conditional operators. better way write it?

you want xor operator written ^ use , && or or ||. true if 1 not both arguments true.