Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Simple binary problem

Hello guys, I want to convert decimal from dec_buffer to a bin_buffer.

Example: dec_buffer[1]=1; bin_buffer[1][12]={000000000001};

dec_buffer[2]=2; bin_buffer[2][12]={000000000010};

dec_buffer[3]=3; bin_buffer[3][12]={000000000011};and soon

The error is at "bin_buffer[buf_num] = show_binary(dec_buffer[buf_num]);" ; Error: incompatible types in assignment

I think it's a newbie question since I am a newbie on C programming, so please give me a hint :)

NB:If there's any undeclared constant, please ignore it since i didn't copy all of my code here. I copied the part with issues only. 

# include <stdio.h>
# define BUFFER_NUM_MAX 192  //16*12# define BIT_NUM_MAX 12      //12bit
int dec_buffer;
int bin_buffer;
int bit_num;
int buf_num;
int show_binary(int num){
    int j,b={0};
    printf("data converted: %d ; binary: ",num);
    
    for (j=1;j<=BIT_NUM_MAX;j++){
        b=num%2;
        num=num/2;
    }
    for(j=0;j<BIT_NUM_MAX;j++){
        printf("%d",b);
    }
    printf("\n");
    return b;
}
int main(void){
for (buf_num=1;buf_num<=BUFFER_NUM_MAX;buf_num++){
    dec_buffer = buf_num;    
    bin_buffer = show_binary(dec_buffer);//Error: incompatible types in assignment
}

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    If it's about the different array dimension, I have tried below code,but no luck. 

    
int show_binary(int num){
    int j,b;
    printf("data converted: %d ; binary: ",num);
    
    for (j=1;j<=BIT_NUM_MAX;j++){
        b=num%2;
        num=num/2;
    }
    for(j=0;j<BIT_NUM_MAX;j++){
        printf("%d",b);
    }
    printf("\n");
    return b;
}
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    If I highlighted some error register. And print out the converted(decimal to binary) buffers, I got the value I wanted, but the problem is i want to save the value to bin_buffer since I will need them for further process.

    My current objective is :

    if dec_buffer[1] = 1 ; bin_buffer[1][11] ~ bin_buffer[1][1] = 0 and bin_buffer[1][0] = 1;

    if dec_buffer[2] = 2 ; bin_buffer[1][11] ~ bin_buffer[1][2] = 0 , bin_buffer[1][1] = 1; bin_buffer[1][1] = 0;

    and soon..

    Need some help here :) Thank you :D 

    # include <stdio.h>
# define BUFFER_NUM_MAX 192  //16*12# define BIT_NUM_MAX 12      //12bit
int dec_buffer;
int bin_buffer;
int bit_num;
int buf_num;
int show_binary(int num){
    int j,b={0};
    printf("data converted: %d ; binary: ",num);
    
    for (j=1;j<=BIT_NUM_MAX;j++){
        b=num%2;
        num=num/2;
    }
    for(j=0;j<BIT_NUM_MAX;j++){
        printf("%d",b);
    }
    printf("\n");
    return b;
}
int main(void){
for (buf_num=1;buf_num<=BUFFER_NUM_MAX;buf_num++){
    dec_buffer = buf_num;    
    /*bin_buffer = */show_binary(dec_buffer);//Error: incompatible types in assignment
}