pvectorcmodule.c: In function ‘nodeFor’:
pvectorcmodule.c:152:21: warning: comparison of integer expressions of different signedness: ‘int’ and ‘unsigned int’ [-Wsign-compare]
  152 |   if((i >= 0) && (i < self->count)) {
      |                     ^
pvectorcmodule.c:153:10: warning: comparison of integer expressions of different signedness: ‘int’ and ‘unsigned int’ [-Wsign-compare]
  153 |     if(i >= TAIL_OFF(self)) {
      |          ^~
pvectorcmodule.c: In function ‘PVector_repeat’:
pvectorcmodule.c:428:17: warning: comparison of integer expressions of different signedness: ‘int’ and ‘unsigned int’ [-Wsign-compare]
  428 |       for(j=0; j<self->count; j++) {
      |                 ^
pvectorcmodule.c: In function ‘extendWithItem’:
pvectorcmodule.c:145:52: warning: comparison of integer expressions of different signedness: ‘unsigned int’ and ‘int’ [-Wsign-compare]
  145 | #define ROOT_NODE_FULL(vec) ((vec->count >> SHIFT) > (1 << vec->shift))
      |                                                    ^
pvectorcmodule.c:769:8: note: in expansion of macro ‘ROOT_NODE_FULL’
  769 |     if(ROOT_NODE_FULL(newVec)) {
      |        ^~~~~~~~~~~~~~
pvectorcmodule.c: In function ‘PVector_append’:
pvectorcmodule.c:145:52: warning: comparison of integer expressions of different signedness: ‘unsigned int’ and ‘int’ [-Wsign-compare]
  145 | #define ROOT_NODE_FULL(vec) ((vec->count >> SHIFT) > (1 << vec->shift))
      |                                                    ^
pvectorcmodule.c:919:6: note: in expansion of macro ‘ROOT_NODE_FULL’
  919 |   if(ROOT_NODE_FULL(self)) {
      |      ^~~~~~~~~~~~~~