On Thursday, 21 November 2013 00:26:17 UTC+5:30, VUkani wrote:
> 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
----------------------
does the nID value fit in within integer limits ? did u check ?
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