Comparison of two integer saved in array

ecaits said:

Dear All Friends,

I want to compare two integer array and want to know that which is greater. I have tried logic to compare MSB of each to LSB but I am not getting exact result.

For Example.

int data[5] = '12334" and int sample[5] = "11274" are two integer array and I want to compare that which array is greater.

Plz suggest me how can I complete this?

Click to expand...

    int i, data[5] = {1,2,3,3,4}, sample[5] = {1,1,2,7,4};
    for(i=0;i<5;i++)
    if(data[i]>sample[i]) { printf("data > sample \n"); break; }
    else
       if(data[i]<sample[i]) { printf("sample > data \n"); break; }
    printf("equal\n");

ecaits said:

Actually, I want to compare the setvalue and process value. If process value is higher than setvalue then I want to make one of the pin high logic. I have stored setvalue in EEPROM and process value is stored in one array. I read the setvalue from EEPROM and stored it again in another array. So I want to compare these two array and want to observe that which is higher.

Click to expand...

sample[5] = {1,1,2,7,4};

int data1[5] = "12334" ;

C:\temp\zz.c|5|error: array of inappropriate type initialized from string constant|

this definition gives an error with GNU C

Click to expand...

FvM said:

I would expect process value and setpoints represented by simple signed or unsigned integers, neither arrays nor character strings. In case that the setpoint is given as a decimal string, it would be converted to an integer number, e.g by atoi() before comparing it with the process value.


Yes, that's helpful to indicate the possible user error. Other compilers are simply filling up the array with characters.

Click to expand...

    int i, data = 12345, sample = 11274;
    for(i=0;i<5;i++)
    if(data>sample) { printf("data > sample \n"); break; }
    else
       if(data<sample) { printf("sample > data \n"); break; }
    printf("equal\n");