Solved

Need some help compiling a C++ code for a R*-tree

Posted on 2009-07-03
10
280 Views
Last Modified: 2012-05-07
I have this code in C++ that I'm learning how to use, but I cannot compile it because I get an error saying it cannot find the io.h.

Isn't the io.h part of the OS?
0
Comment
Question by:Trexgreen
  • 6
  • 3
10 Comments
 
LVL 40

Expert Comment

by:evilrix
ID: 24773797
Compiler? Version? Example of code? Exact error?
0
 

Author Comment

by:Trexgreen
ID: 24773891
I got that to compile... now I'm having some other problems, linking the files.

Here are the files that I have.

main.cpp ( links to Rjoinr.hpp)
Rjoinr.cpp ( links to Rjoinr.hpp, Heap.hpp, kHeap.hpp, PQMxMxD.hpp)
Heap.cpp (links to Heap.hpp)
kheap.cpp (links to kheap.hpp, Rstart.cpp)
PQMxMxD.cpp (links to PQMxMxD.hpp, Rstart.cpp)
Rstar.cpp (links to Rstar.hpp, lrubuff.hpp)
lrubuff.cpp (links to lrubuff.hpp)

I compiled all the files using g++ -c filename.cpp
now I have al the .o files, but when I try to compile the main.cpp file g++ -o main main.o

I get the following error.
main.cpp: (. text+0x2445): undefined reference to 'RjoinR::statistics()'
....

I also get the same error when I do this g++ -o main main.o RjoinR.o

You can download the files here
http://tinyurl.com/myat8o
0
 

Author Comment

by:Trexgreen
ID: 24773901
g++ Version 4.3.3 Debian 4.3.3-10
0
Courses: Start Training Online With Pros, Today

Brush up on the basics or master the advanced techniques required to earn essential industry certifications, with Courses. Enroll in a course and start learning today. Training topics range from Android App Dev to the Xen Virtualization Platform.

 

Author Comment

by:Trexgreen
ID: 24773961
Add more points to the question, so I can get some help with the rest of the compilation.
0
 
LVL 12

Expert Comment

by:Let_Me_Be
ID: 24773999
Your sources might be corrupted, but anyways, try gcc -o main main.cpp Rjoinr.cpp Heap.cpp kheap.cpp PQMxMxD.cpp Rstar.cpp lrubuff.cpp
0
 
LVL 12

Expert Comment

by:Let_Me_Be
ID: 24774000
Uh, sorry g++ of course.
0
 

Author Comment

by:Trexgreen
ID: 24774084
Here is the error I'm getting....

This error only occure when I compile the main.cpp with all the others .o files, because the .o files I'm able to create without a problem.
/tmp/cckUsHqn.o: In function `main':
main.cpp:(.text+0x5ba): undefined reference to `RjoinR::closestPQBuff(bool)'
main.cpp:(.text+0x724): undefined reference to `RjoinR::closestPQSortBuff(bool)'
main.cpp:(.text+0x895): undefined reference to `RjoinR::closestPQHeapBuff(bool, int)'
main.cpp:(.text+0xe89): undefined reference to `RjoinR::closestPQBuff_DHT(bool)'
main.cpp:(.text+0xff3): undefined reference to `RjoinR::closestPQSortBuff_DHT(bool)'
main.cpp:(.text+0x1164): undefined reference to `RjoinR::closestPQHeapBuff_DHT(bool, int)'
main.cpp:(.text+0x12e5): undefined reference to `RjoinR::K_closestPQBuff_DHT(int, bool, bool, bool)'
main.cpp:(.text+0x1466): undefined reference to `RjoinR::K_closestPQSortBuff_DHT(int, bool, bool, bool)'
main.cpp:(.text+0x15ee): undefined reference to `RjoinR::K_closestPQHeapBuff_DHT(int, bool, bool, bool, int)'
main.cpp:(.text+0x19c4): undefined reference to `RjoinR::closestPQPlaneSweepBuff(bool, bool)'
main.cpp:(.text+0x1b3d): undefined reference to `RjoinR::closestPQHeapPSBuff(bool, bool, int)'
main.cpp:(.text+0x1fb8): undefined reference to `RjoinR::closestPQPlaneSweepBuff_DHT(bool, bool)'
main.cpp:(.text+0x2131): undefined reference to `RjoinR::closestPQHeapPSBuff_DHT(bool, bool, int)'
main.cpp:(.text+0x22b2): undefined reference to `RjoinR::K_closestPQPlaneSweepBuff_DHT(int, bool, bool, bool)'
main.cpp:(.text+0x243a): undefined reference to `RjoinR::K_closestPQHeapPSBuff_DHT(int, bool, bool, bool, int)'
/tmp/ccsAlRGx.o: In function `RjoinR::K_closestPQPlaneSweepBuff(kHeap*,
int, int, int, int, bool, bool)':
RjoinR.cpp:(.text+0x5c5b): undefined reference to `RjoinR::quickSort(double*, int, int)'
RjoinR.cpp:(.text+0x629f): undefined reference to `RjoinR::quickSort(double*, int, int)'
RjoinR.cpp:(.text+0x65a2): undefined reference to `RjoinR::quickSort(double*, int, int)'
/tmp/ccsAlRGx.o: In function `RjoinR::K_closestPQSortBuff(kHeap*, int, int, int, int, bool, bool)':
RjoinR.cpp:(.text+0x7dbc): undefined reference to `RjoinR::quickSort(double*, int, int)'
RjoinR.cpp:(.text+0x7e3f): undefined reference to `RjoinR::mergeSortCPQ(ArrayElement*, int, int)'
RjoinR.cpp:(.text+0x818c): undefined reference to `RjoinR::quickSort(double*, int, int)'
RjoinR.cpp:(.text+0x8212): undefined reference to `RjoinR::mergeSortCPQ(ArrayElement*, int, int)'
RjoinR.cpp:(.text+0x8510): undefined reference to `RjoinR::quickSort(double*, int, int)'
RjoinR.cpp:(.text+0x8596): undefined reference to `RjoinR::mergeSortCPQ(ArrayElement*, int, int)'
/tmp/ccsAlRGx.o: In function `RjoinR::K_closestPQBuff(kHeap*, int, int, int, int, bool, bool)':
RjoinR.cpp:(.text+0x931a): undefined reference to `RjoinR::quickSort(double*, int, int)'
RjoinR.cpp:(.text+0x960d): undefined reference to `RjoinR::quickSort(double*, int, int)'
RjoinR.cpp:(.text+0x988b): undefined reference to `RjoinR::quickSort(double*, int, int)'
collect2: ld returned 1 exit status

Open in new window

0
 

Author Comment

by:Trexgreen
ID: 24774089
Also all I'm trying to do is read a datafile, and build the index creating the r-tree, and if I have a set of queries I need to calculate the AVG. execution time and the AVG. IO.
0
 
LVL 12

Accepted Solution

by:
Let_Me_Be earned 500 total points
ID: 24774102
I just downloaded the project.

First of all, the project has incorectly named files. kheap.hpp and kheap.cpp should be called kHeap.hpp and kHeap.cpp

Also main is not returning int (it should).

Otherwise the compilation is completely straitforward, just run:
g++ Heap.cpp  kHeap.cpp  lrubuff.cpp  main.cpp  PQMxMxD.cpp  RjoinR.cpp  RjoinR0.cpp  RjoinR1.cpp  RjoinR2.cpp  Rstar.cpp -o main
0
 

Author Comment

by:Trexgreen
ID: 24774273
Let Me Be:

Thank you for the comment.. I had the kHeap fixed... but I was compiling the without the two other RjoinR files... :) I guess I'm tired...

Any way... thank you so much.. it worked...
0

Featured Post

Live: Real-Time Solutions, Start Here

Receive instant 1:1 support from technology experts, using our real-time conversation and whiteboard interface. Your first 5 minutes are always free.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

C++ Properties One feature missing from standard C++ that you will find in many other Object Oriented Programming languages is something called a Property (http://www.experts-exchange.com/Programming/Languages/CPP/A_3912-Object-Properties-in-C.ht…
This article shows you how to optimize memory allocations in C++ using placement new. Applicable especially to usecases dealing with creation of large number of objects. A brief on problem: Lets take example problem for simplicity: - I have a G…
The goal of this video is to provide viewers with basic examples to understand and use conditional statements in the C programming language.
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…

776 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question