Minor warning fixes

- Fixed a few warnings introduced in the latest ProcFS commit

dcdbpusher/sensors/procfs/ProcfsParser.cpp

@@ -444,7 +444,7 @@ bool ProcstatParser::_readMetrics() {
         v.value = 0;
 
     unsigned int ctr = 0, lineCtr = 0, colCtr = 0, parsedCols = 0;
-    char *lineToken, *cpuToken, *savePtr;
+    char *lineToken, *savePtr;
     // Reading the file line by line
     while( getline(&_stringBuffer, &_chars_read, _metricsFile) > 0 && ctr < _numInternalMetrics ) {
         _l = &_lines[lineCtr++];
@@ -455,11 +455,10 @@ bool ProcstatParser::_readMetrics() {
             if (lineToken == NULL) return false;
             // We check whether the line is CPU core-related or not (see _readNames)
             if (_l->columns>1) {
-                cpuToken = lineToken;
                 colCtr = 0;
                 parsedCols = 0;
                 // We iterate over the line and capture all of the CPU core-related metrics
-                while((lineToken = strtok_r(NULL, LINE_SEP, &savePtr)) != NULL && parsedCols < _l->columns) {
+                while((lineToken = strtok_r(NULL, LINE_SEP, &savePtr)) != NULL && parsedCols < (unsigned)_l->columns) {
                     // Second part of the if: if the line contains node-level CPU metrics (starts with "cpu") and the
                     // column is flagged with 2 (sample only at node level) then the metric can be sampled
                     if(_skipColumn[colCtr] == 1 || (_skipColumn[colCtr] == 2 && _l->cpuID<0)) {
@@ -537,7 +536,7 @@ bool SARParser::_readMetrics() {
         v.value = 0;
     
     unsigned int ctr=0, lineCtr=0, colCtr=0, parsedCols=0, accIdx=0;
-    char *lineToken, *cpuToken, *savePtr;
+    char *lineToken, *savePtr;
     // Reading the file line by line
     while(getline(&_stringBuffer, &_chars_read, _metricsFile) > 0 && ctr < _numInternalMetrics) {
         _l = &_lines[lineCtr++];
@@ -548,7 +547,6 @@ bool SARParser::_readMetrics() {
             if(lineToken == NULL) return false;
             // We check whether the line is CPU core-related or not (see _readNames)
             if(_l->columns>1) {
-                cpuToken = lineToken;
                 colCtr = 0;
                 parsedCols = 0;
                 accIdx = (_htAggr && _l->cpuID>=0) ? _l->cpuID%_htVal + 1 : _l->cpuID + 1;
@@ -586,7 +584,7 @@ bool SARParser::_readMetrics() {
     // Computing percentages in SAR style
     for(auto& l : _lines)
         if(!l.skip && l.columns>1 && (!_htAggr || l.cpuID<_htVal)) {
-            for (colCtr = 0; colCtr < l.columns; colCtr++)
+            for (colCtr = 0; colCtr < (unsigned)l.columns; colCtr++)
                 _readings->at(l.dest + colCtr).value = _readings->at(l.dest + colCtr).value * 1000 / _accumulators[l.cpuID + 1];
             _accumulators[l.cpuID + 1] = 1;
         }