how can I make the output look like a table?-CodePudding

I wrote a program that prints all Ascii characters in different representations, but I want the output to be more like a table than the current one

so this is my code

//method to convert decimal to base 2 (binary)
#include <stdio.h> 
void decToBinary(int n) 
{
  int binaryNumber[32];
  int i = 0;
  while (n > 0)                                 
  {
      binaryNumber[i] = n % 2;
      n = n / 2;
      i  ;
  }
  for (int j = i - 1; j >= 0; j--)
      printf_s("%d",binaryNumber[j]);
}
//*...................................//*

//print Ascii using for loop with multi representations
int main() 
{
int n; 

printf_s("\n       deci  hex   oct  binary     characters \n"); 

for(n = 0; n < 256; n  )
{
printf_s("\n    ]    %2x    o\t", n, n, n); 
decToBinary(n);
printf_s("c", n);

}

return 0; 

}

and this is the output I get

and I want the output to be more like this but with every 20 lines not 31

and if you have any other suggestions please tell me

CodePudding user response：

make the output look like a table?

Use a width.

Convert binary to a string.

Use '\n' at the end.

Some columns left out for OP's completion

#include <stdio.h>

// This code still needs more work to handle values <= 0
char* int2Binary(char *binaryNumber, int n) {
  int i = 32;
  binaryNumber[i] = '\0';  // Set null character
  while (n > 0) {
    binaryNumber[--i] = (char) ((n % 2)   '0');
    n = n / 2;
  }
  return &binaryNumber[i];
}

int main() {
  int width1 = 11;
  int width2 = 4;
  int width3 = 8;
  printf("<%*s %*s %*s>\n", width1, "deci", width2, "hex", width3, "binary");
  for (int n = 1; n <= 10; n  ) {
    char buf[34];
    printf("<%*.5d %*.2x %*s>\n", //
        width1, n, width2, n, width3, int2Binary(buf, n));
  }
}

Output

<       deci  hex   binary>
<      00001   01        1>
<      00002   02       10>
<      00003   03       11>
<      00004   04      100>
<      00005   05      101>
<      00006   06      110>
<      00007   07      111>
<      00008   08     1000>
<      00009   09     1001>
<      00010   0a     1010>

CodePudding user response：

You have this tagged as C and C, while the code posted is clearly C, which complicates answering this question. If you are going to use C , you can use ostream modifiers such as setw() to organize the output. If it is in fact a pure C program, i would reccomend looking into the NCurses library (which is also supported in C )