reverted state to use long type

CHANGELOG.txt

@@ -1,3 +1,10 @@
+# Oct. 17, 2014; Daniel Holden
+- Reverted state to use long type
+
+# Oct. 16, 2014; Daniel Holden
+- Removed comments describing changes
+- Fixed warnings reported by gcc in test suite under the new compilation flags
+
 # Oct. 14, 2014; Dalton Woodard
 - Fixed all compilation warnings in `mpc.h` and `mpc.c`; both now compile successfully on OS X under clang-600.0.51 
 and gcc 4.9.1 with the following flags:

mpc.c

@@ -6,9 +6,9 @@
 
 static mpc_state_t mpc_state_invalid(void) {
   mpc_state_t s;
-  s.pos = SIZE_MAX;
-  s.row = SIZE_MAX;
-  s.col = SIZE_MAX;
+  s.pos = -1;
+  s.row = -1;
+  s.col = -1;
   return s;
 }
 
@@ -465,7 +465,7 @@ static void mpc_input_rewind(mpc_input_t *i) {
 }
 
 static int mpc_input_buffer_in_range(mpc_input_t *i) {
-  return i->state.pos < (strlen(i->buffer) + i->marks[0].pos);
+  return i->state.pos < (long)(strlen(i->buffer) + i->marks[0].pos);
 }
 
 static char mpc_input_buffer_get(mpc_input_t *i) {
@@ -473,7 +473,7 @@ static char mpc_input_buffer_get(mpc_input_t *i) {
 }
 
 static int mpc_input_terminated(mpc_input_t *i) {
-  if (i->type == MPC_INPUT_STRING && i->state.pos == strlen(i->string)) { return 1; }
+  if (i->type == MPC_INPUT_STRING && i->state.pos == (long)strlen(i->string)) { return 1; }
   if (i->type == MPC_INPUT_FILE && feof(i->file)) { return 1; }
   if (i->type == MPC_INPUT_PIPE && feof(i->file)) { return 1; }
   return 0;

mpc.h

@@ -21,14 +21,10 @@
 ** State Type
 */
 
-/* 
-** changed to unsigned values for indexing in state,
-** invalid is now signified by SIZE_MAX.
-*/
 typedef struct {
-  size_t pos;
-  size_t row;
-  size_t col;
+  long pos;
+  long row;
+  long col;
 } mpc_state_t;
 
 /*