Main.cc: In function 'int main()':
Main.cc:7:19: error: expected primary-expression before '=' token
for(int i=0;a[i]?='\0';i++)
^
Main.cc:7:24: error: expected ':' before ';' token
for(int i=0;a[i]?='\0';i++)
^
Main.cc:7:24: error: expected primary-expression before ';' token