How to read a values from the structure in C

[hemanthjv]

#include<stdio.h>
#define msize 4096

struct memory
{
int a[msize];
};

void main()
{
struct memory m;
m.a[0]=250; // temperature value of 25,0
m.a[4]=01; // heater status OFF
m.a[8]=240; // temperature value of 24,0
m.a[12]=00; // heater status ON
m.a[16]=220; // temperature value of 22,0
m.a[20]=00; // heater status ON
read(&m

);

}

void read(struct memory m)
{
int i;
for(i=0;i<sizeof(msize);i++)
{
scanf("%d", m.a);
}
}


the code is showing error in void read function as first defined here .

Please some one also help me to convert this read value to ASCII ??

 

[speedEC]

the code is showing error in void read function as first defined here .

you have to declare function prototype at the top of the code [functions should be declared before using it]. So, place the function void read(struct memory m) before main function where you called this function from main.

#define msize 4096

Which PIC you are using? do you have such amount of data memory in your PIC MCU (4 KB).

suggestion: google struct in C

 

[milindashokshende]

you might solve the errors like following:

#include<stdio.h>
#define msize 4096

struct memory
{
int a[msize];
};

void read(struct memory m)
{
int i;
for(i=0;i<sizeof(msize);i++)
{
scanf("%d", &m.a);
}
}


int main()
{
struct memory m;
m.a[0]=250; // temperature value of 25,0
m.a[4]=01; // heater status OFF
m.a[8]=240; // temperature value of 24,0
m.a[12]=00; // heater status ON
m.a[16]=220; // temperature value of 22,0
m.a[20]=00; // heater status ON
read(m);

}