Thread: How can I prevent the duplication of stdlib.h in main.cpp?

How can I prevent the duplication of stdlib.h in main.cpp?

Code:

// AllocateVector.h
#ifndef ALLOCATEVECTOR_H
#define ALLOCATEVECTOR_H
#include <stdlib.h>


template <class dataType>
int allocateData1DbyMalloc(dataType*& data1D, unsigned int nRow) {
	data1D = (dataType*)malloc(nRow * sizeof(dataType)); // sizeof(type1));
	return (data1D != NULL) ? EXIT_SUCCESS : EXIT_FAILURE;
}
#endif


// AllocateMatrix.h
#ifndef ALLOCATEMATRIX_H
#define ALLOCATEMATRIX_H
#include <stdlib.h>


int allocateData2DbyMalloc(dataType**& data2D, unsigned int nRow, unsigned int nColumn) {
	data2D = (dataType * *)malloc(nRow * sizeof(dataType*)); // calloc(nRow, sizeof(type1*));
	if (data2D == NULL) {
		return EXIT_FAILURE;
	}


	// Now point each row to an array of nColumn type1 objects
	for (unsigned int i = 0; i < nColumn; ++i) {
		data2D[i] = (dataType*)malloc(nColumn * sizeof(dataType)); //calloc(nColumn, sizeof(type1));
		if (data2D[i] == NULL) {
			return EXIT_FAILURE;
		}
	}
	return EXIT_SUCCESS;
}
#endif


//main.cpp
#include "AllocateVector.h"
#include "AllocateMatrix.h"
int main()
{


	return 0;
}