pointer

[kiani45]

Hi, all

If I have array:

float* p ;
p = (float*) malloc( sizeof(float) * 10)

and I have a function that give me two numbers each time I call it

If I want to call this function 5 times, how do I save these 10 value outputs sequentially into my array p buy just put my array into the function ?

like:

for( int i=0; i<5; i++ )
{
myfunction (A, B, *p) ;
}



THX

[Revne]

Hi, all

If I have array:

float* p ;
p = (float*) malloc( sizeof(float) * 10)

and I have a function that give me two numbers each time I call it

If I want to call this function 5 times, how do I save these 10 value outputs sequentially into my array p buy just put my array into the function ?

like:

for( int i=0; i<5; i++ )
{
myfunction (A, B, *p) ;
}
THX

#define ARRAY_SIZE 10
int nIndex;
float* p;
void myfunction(float a,float b,float* p)
{
 if (nIndex < ARRAY_SIZE-2) {
   p[nIndex]=a; nIndex++;
   p[nIndex]=b; nIndex++;
 }
}

int main()
{
  nIndex=0;
  p=(float*)malloc(sizeof(float)*ARRAY_SIZE);
  ..............................
  myfunction(A,B,p);
  ..........
}

Have a good time

[STLDude]

This looks like C

float* p ;
p = (float*) malloc( sizeof(float) * 10)

If you want to use C++

std::vector<float> p(10);

[ckweius]

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

void myfunction(int &A, int &B, float *p)
{
	static a=0,b=0;
	A = ++a;
	B = ++b + a;

	*p = A;
	*(p+1) = B;
}

int main()
{
	float *p, *pOld;
	p = (float*) malloc( sizeof(float)* 10 );
	pOld = p;


	int A,B;
	for( int i=0; i<5; i++ ) 
	{
		myfunction(A, B, p);
		p+=2;
	}

	p = pOld;
	for( int j=0; j<10; j++ ) 
	{
		printf("&#37;f\n", *(p++));
	}

        free(pOld);
	return 0;
}