using an assignment as a conditional

assignment-as-conditional.txt

[~/src/SillyMUD/src]$ make
gcc -g -DIMPL_SECURITY -DNEW_RENT -DLEVEL_LOSS -DNEWEXP -DGROUP_NAMES -Werror -DIMPL_SECURITY -DNEW_RENT -DLEVEL_LOSS -DNEWEXP -DGROUP_NAMES  -c -o comm.o comm.c
comm.c:1538:18: error: using the result of an assignment as a condition without
      parentheses [-Werror,-Wparentheses]
          while (*point = *(i++))
                 ~~~~~~~^~~~~~~~
comm.c:1538:18: note: place parentheses around the assignment to silence this
      warning
          while (*point = *(i++))
                        ^
                 (              )
comm.c:1538:18: note: use '==' to turn this assignment into an equality
      comparison
          while (*point = *(i++))
                        ^
                        ==
...
2 errors generated.
make: *** [comm.o] Error 1