Question

I am trying to compile a very simple program, I dont understand why it doesn’t compile. Here is my program:

/* General includes */
#include <stdio.h>
#include <stdlib.h>
#include <libpic30.h>
#include <p33FJ128GP804.h>

#include "RunLengthAlgorithm.h"
//#include "RunLengthAlgorithm.c"

int main(void) {

    int n;
    char source[10001];
    char target[100];

    for(n = 0; n < 1000; ++n){
        source[n] = "A";
    }
    for(n = 1000; n < 2000; ++n){
        source[n] = "B";
    }
    for(n = 2000; n < 3000; ++n){
        source[n] = "C";
    }
    for(n = 3000; n < 4000; ++n){
        source[n] = "D";
    }
    for(n = 4000; n < 5000; ++n){
        source[n] = "E";
    }
    for(n = 5000; n < 6000; ++n){
        source[n] = "F";
    }
    for(n = 6000; n < 7000; ++n){
        source[n] = "G";
    }
    for(n = 7000; n < 8000; ++n){
        source[n] = "H";
    }
    for(n = 8000; n < 9000; ++n){
        source[n] = "I";
    }
    for(n = 9000; n < 10000; ++n){
        source[n] = "J";
    }
    source[10001] = '\0';

    RLEncode(&source, &target);

    while(1);
    return (EXIT_SUCCESS);

}

The .h and .c files are added to project.

#ifndef RUNLENGTHALGORITHM_H
#define RUNLENGTHALGORITHM_H

void RLEncode (char *source, char *target);

#endif

And the .c file:

#ifndef RUNLENGTHALGORITHM_C
#define RUNLENGTHALGORITHM_C
void RLEncode (char *source, char *target){
    int n, k = 0;
    for(n = 0; source[n] != '\0'; ++n){
        int length = 1;
        while(source[n+1] != '\0' && source[n] == source[n+1]){
            ++length; ++n;
        }
        target[k++] = length;
        target[k++] = source[n];
    }
    source[n] = '\0';
}

#endif

I am using MPLAB-X IDE whith C30 compiler and it gives me this error:

CLEAN SUCCESSFUL (total time: 1s)
make -f nbproject/Makefile-default.mk SUBPROJECTS= .build-conf
make[1]: Entering directory `D:/Datos (Disco)/Electronica/Multi portatil/Run-Length Algorithm.X'
make  -f nbproject/Makefile-default.mk dist/default/production/Run-Length_Algorithm.X.production.hex
make[2]: Entering directory `D:/Datos (Disco)/Electronica/Multi portatil/Run-Length Algorithm.X'
Main.c: In function 'main':
Main.c:24: warning: assignment makes integer from pointer without a cast
Main.c:27: warning: assignment makes integer from pointer without a cast
Main.c:30: warning: assignment makes integer from pointer without a cast
Main.c:33: warning: assignment makes integer from pointer without a cast
Main.c:36: warning: assignment makes integer from pointer without a cast
Main.c:39: warning: assignment makes integer from pointer without a cast
Main.c:42: warning: assignment makes integer from pointer without a cast
Main.c:45: warning: assignment makes integer from pointer without a cast
Main.c:48: warning: assignment makes integer from pointer without a cast
Main.c:51: warning: assignment makes integer from pointer without a cast
Main.c:55: warning: passing argument 1 of 'RLEncode' from incompatible pointer type
Main.c:55: warning: passing argument 2 of 'RLEncode' from incompatible pointer type
"C:\Program Files (x86)\Microchip\MPLAB C30\bin\pic30-gcc.exe" -g -omf=elf -x c -c -mcpu=33FJ128GP804 -MMD -MF build/default/production/Main.o.d -o **build/default/production/Main.o Main.c 
"C:\Program Files (x86)\Microchip\MPLAB C30\bin\pic30-gcc.exe" -g -omf=elf -x c -c -mcpu=33FJ128GP804 -MMD -MF build/default/production/RunLengthAlgorithm.o.d -o build/default/production/RunLengthAlgorithm.o RunLengthAlgorithm.c 
"C:\Program Files (x86)\Microchip\MPLAB C30\bin\pic30-gcc.exe"   -omf=elf -mcpu=33FJ128GP804  -o dist/default/production/Run-Length_Algorithm.X.production.elf build/default/production/Main.o build/default/production/RunLengthAlgorithm.o build/default/production/RunLengthAlgorithm.o        -Wl,--defsym=__MPLAB_BUILD=1,-Tp33FJ128GP804.gld
build/default/production/RunLengthAlgorithm.o(.text+0x0): In function `_RLEncode':
: multiple definition of `_RLEncode'
build/default/production/RunLengthAlgorithm.o(.text+0x0): first defined here
c:\program files (x86)\microchip\mplab c30\bin\bin\..\bin/pic30-elf-ld.exe: Link terminated due to previous error(s).**
make[2]: Leaving directory `D:/Datos (Disco)/Electronica/Multi portatil/Run-Length Algorithm.X'
make[1]: Leaving directory `D:/Datos (Disco)/Electronica/Multi portatil/Run-Length Algorithm.X'
**make[2]: *** [dist/default/production/Run-Length_Algorithm.X.production.hex] Error 255
make[1]: *** [.build-conf] Error 2
make: *** [.build-impl] Error 2

BUILD FAILED (exit value 2, total time: 8s)**

I don’t understand why, if I put my function inside Main.c and I dont’t include #include “RunLengthAlgorithm.h” it works but I cannot get it working including a file.

Answer 1

Ok there is no problem whit the code. It seems to be a bug of MPLAB-X v1.10.

Solution: close MPLAB-X and open it again it will compile fine, if it doesn’t work read on http://www.microchip.com/forums/m627705.aspx.