I was facing some problems while using vector in one of my simulation code. I
wanted to store structure in a vector. The structures are added with push_back
method of vector. But after adding few elements, it corrupts some of the
elements.
\\Global declaration
struct neighborRecord {
int nId;
bool type;
double locX;
double locY;
double rssi;
double dist;
};
vector<neighborRecord> neighborTable;
\\Need to call this funtion. All arguments are passed properly in the function
updateNeighborTable(int nId, bool A, double fromX, double fromY, double rss,
double Distance)
{
int i = 0,pos = -1;
int tblSize = (int)neighborTable.size();
for (i = 0; i < tblSize; i++){
if (neighborTable[i].nId == nId){
pos = i;
break;
}
}
\\ If a element with a nId is not present then add new record
if (pos == -1){
neighborRecord newRec;
newRec.nId = nId;
newRec.type = fromAnchor;
newRec.locX = fromX;
newRec.locY = fromY;
newRec.rssi = rss;
newRec.dist = Distance;
//neighborTable.reserve(sizeof(newRec));
neighborTable.push_back(newRec);
for (i=0; i< (int)neighborTable.size(); i++) \\ Just to check
print
cout << "nId: "<<neighborTable[i].nId<< "type:" <<
neighborTable[i].type;
}
\\else if element with argument nId is present in the vector then update that
record
else{
neighborTable[pos].nId = nId;
neighborTable[pos].type = fromAnchor;
neighborTable[pos].locX = fromX;
neighborTable[pos].locY = fromY;
neighborTable[pos].rssi = rss;
neighborTable[pos].dist = Distance;
for (i=0; i< (int)neighborTable.size(); i++) \\ Just to check
print
cout<< "nId: "<<neighborTable[i].nId<< "type:" <<
neighborTable[i].type;
}
}
This is a code snippet from my simulator code. Actual code is very long. I
tried to run similar code as separate small CC program, it works perfectly but
doesnot work in the simulator code. Whenever I print the vector contents, after
10-12 records, it starts corrupting the structure data stored in vector.
Example trace output of the simulator
1.342766435621 SN.node[6].Application nId: 13type:1
1.342766435621 SN.node[6].Application nId: 8type:1
1.342766435621 SN.node[6].Application nId: 28type:1
then it becomes
2.518941580248 SN.node[6].Application nId: 13type:1
2.518941580248 SN.node[6].Application nId: -2132507471type:47
2.518941580248 SN.node[6].Application nId: 28type:1
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