Error:error C2664: cannot convert parameter 1 from 'float **__w64  ' to 'float *
 

void vGetPixelValueIntoArray(float *,const char*, s_Header*);
 
int main(int argc, char **argv) {
 
 
    float **ppfImageData = 0;/* a pointer to a series of 2d arrays */
	s_Filename *psFile;
	s_Header *psHeader;
	float *pfResFunc;
	size_t nCountI,nCountJ;
 
	if(!(ppfImageData = (float **) malloc(psHeader->nPhotosToBeCounted))){
        fprintf(stderr, "Failed to allocate memory for imageMatrix array!\n");
		return NULL;
	}
 
	nCountI = 0;
	vGetPixelValueIntoArray(&ppfImageData[nCountI],  "c:\testfile.ppm", psHeader); //parameter 1 that causes the problems
 
	for (nCountJ=0; nCountJ<psHeader->nPhotosToBeCounted; nCountJ++){
			free(ppfImageData[nCountJ]);
    }
    free(ppfImageData);
    return 0;
}
void vGetPixelValueIntoArray(float *pfImageData, const char* pccFilename, s_Header* psHeader ) {// returns NULL if error 
    size_t nCounter, nSecondCounter;
    FILE *pFTemp_file;
	//float *pfImage;
 
	psHeader->nWantedPixels = 5; //Hack to only take in certain amount of pixels
	if (!(pFTemp_file = fopen(pccFilename,"rb"))){ //open file
        fprintf(stderr, "Can't open file!\n");
        exit(-1);
    }
	if (!(pfImageData = (float *) malloc(psHeader->nWantedPixels))){ //malloc array for image data
        fprintf(stderr, "Failed to allocate memory in *pfGetPixelValueIntoArray");
        exit(-1); //cant return a null >???? need a error function
    }	
	for(nSecondCounter=0;nSecondCounter<psHeader->nHeaderEnd;nSecondCounter++){fgetc(pFTemp_file);}
 
	for (nCounter=0; nCounter<psHeader->nWantedPixels; nCounter++){
            pfImageData[nCounter] = (unsigned char) fgetc(pFTemp_file);
            //skip next two values are they make up the rgb pixel and are therefore not needed
			//only do this if there are pixels to jump over and if it is a 3 channel operation
			fgetc(pFTemp_file); 
			fgetc(pFTemp_file);
            if (feof(pFTemp_file)) break;
        }
    fclose(pFTemp_file);
 
}

// OneChannelWin32.cpp : Defines the entry point for the console application.
//
#include <iostream>
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
#include "ctype.h"
using namespace std;
 
 
//float *pfGetPixelValueIntoArray(const char*, s_Header*);
void vGetPixelValueIntoArray(float *);
 
void vGetPixelValueIntoArray(float *pfImageData ) {// returns NULL if error 
 
	if (!(pfImageData = (float *) malloc(5))){ //malloc array for image data
        fprintf(stderr, "Failed to allocate memory in *pfGetPixelValueIntoArray");
        exit(-1); //cant return a null >???? need a error function
    }	
 
}
 
int main() {
 
	float **ppfImageData;/* a pointer to a series of 2d arrays */
	int photostobecounted=16, nCountJ=0;
 
	if(!(ppfImageData = (float **) malloc(photostobecounted))){
        fprintf(stderr, "Failed to allocate memory for imageMatrix array!\n");
		return NULL;
	}
		vGetPixelValueIntoArray(&ppfImageData[0]); //so mallocing the first
 
	// deallocate memory 
	for (nCountJ=0; nCountJ<photostobecounted; nCountJ++){
			free(ppfImageData[nCountJ]);
    }
    free(ppfImageData);
    return 0;
}

testpp.cpp:
Error E2209 testpp.cpp 3: Unable to open include file 'stdafx.h'
Error E2268 testpp.cpp 11: Call to undefined function 'malloc' in function vGetPixelValueIntoArray(float *)
Warning W8060 testpp.cpp 11: Possibly incorrect assignment in function vGetPixelValueIntoArray(float *)
Error E2268 testpp.cpp 12: Call to undefined function 'fprintf' in function vGetPixelValueIntoArray(float *)
Error E2451 testpp.cpp 12: Undefined symbol 'stderr' in function vGetPixelValueIntoArray(float *)
Error E2268 testpp.cpp 13: Call to undefined function 'exit' in function vGetPixelValueIntoArray(float *)
Warning W8057 testpp.cpp 16: Parameter 'pfImageData' is never used in function vGetPixelValueIntoArray(float *)
Error E2268 testpp.cpp 23: Call to undefined function 'malloc' in function main(int,char * *)
Error E2451 testpp.cpp 24: Undefined symbol 'stderr' in function main(int,char * *)
Error E2268 testpp.cpp 24: Call to undefined function 'fprintf' in function main(int,char * *)
Error E2451 testpp.cpp 25: Undefined symbol 'NULL' in function main(int,char * *)
Error E2034 testpp.cpp 27: Cannot convert 'float * *' to 'float *' in function main(int,char * *)
Error E2342 testpp.cpp 27: Type mismatch in parameter 'pfImageData' (wanted 'float *', got 'float * *') in function main(int,char * *)
Error E2268 testpp.cpp 31: Call to undefined function 'free' in function main(int,char * *)
Warning W8013 testpp.cpp 31: Possible use of 'ppfImageData' before definition in function main(int,char * *)
Warning W8057 testpp.cpp 35: Parameter 'argc' is never used in function main(int,char * *)
Warning W8057 testpp.cpp 35: Parameter 'argv' is never used in function main(int,char * *)
*** 12 errors in Compile ***

vGetPixelValueIntoArray(&ppfImageData[0]); //so mallocing the first

vGetPixelValueIntoArray(ppfImageData[0]); //so mallocing the first

#include "stdio.h"
#include "stdlib.h"
#include "string.h"
#include "ctype.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

ppfImageData[0]

#include <stdio.h>
#include <stdlib.h>

void foo(float **array2d, size_t index)
{
   array2d[index] = malloc(5 * sizeof *array2d[index]);
}

int main()
{
   size_t i, j, size = 16;
   float value = 0, **array2d = malloc(size * sizeof *array2d);
   if ( array2d )
   {
      for ( i = 0; i < size; ++i )
      {
         foo(array2d, i);
         if ( !array2d[i] )
         {
            fprintf(stderr, "Failed to allocate memory for array!\n");
            goto cleanup;
         }
         for ( j = 0; j < 5; ++j )
         {
            array2d[i][j] = ++value;
         }
      }
      for ( i = 0; i < size; ++i )
      {
         for ( j = 0; j < 5; ++j )
         {
            printf("array2d[%d][%d] = %g\n", (int)i, (int)j, array2d[i][j]);
         }
      }
   cleanup:
      for ( j = i, i = 0; i < j; ++i )
      {
         free(array2d[i]);
      }
      free(array2d);
   }
   return 0;
}