Convert decimal number to IEEE754 format

#include   "stdio.h" #include   "stdlib.h" #include   "string.h" #define  datatype int#define  MAX_SIZE 50#define OK  1#define Err 0 /***         Code :     By YangLong     September 21, 2014,**        0x00:   function Description  *                     xd2b   Convert any one   floating-point number   to  2  binary *           &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;XD2B (Double f,char* s, bool z) *                      parameter:   The floating-point number that needs to be converted *                      parameter two:   the character array that holds the result *                      parameter Three:  z = true    representative   Integer conversion *                              z = false  time   Indicates floating-point number   Convert **        0x01    ieee754 (char* s) *                       parameter:  convert the character array   in &NBSP;XD2B to  ieee754 format *         0x02     Insufficient:*                      results shown as   split *                      to link up   with   string   stitching   on line **         0x03     Pending Optimization: *                      results displayed as      16 Binary *                      converting IEEE754 to True **     is not a complicated program, but a bit of a mess to write. */typedef struct stack{        datatype data[max_size];     int top;} Stk;void init (stk* s) {    s->top = -1;} Bool push (stk *s,datatype d) {    if (s->top+1>max_size-1)      {        printf ("  ' push '  error: overflow!\n ");                  exit (0);    }         s->data[++s->top] = d;    return ok;} Datatype pop (stk* s) {    if (s->top<0)     {             printf ("  ' Pop '  error: overflow!");                 exit (0);     }    datatype data = s->data[s->top--];     return data;} Bool isempty (stk* s) {    return s->top == -1 ? ok  : err;} VOID&NBSP;XD2B (double f,char* s, bool z) {    int i=0,j=0;     stk ss;    init (&AMP;SS);    &nbsP;if (f<0)      {        s[0] =  ' 1 ';        j = 1;         f = f* ( -1.0);     }    else    {         s[0] =  ' 0 ';         j = 1;    }    int q =  (int) F;     while (q)     {        push ( &ss,q%2);        q = q/2;    }     while (! IsEmpty (&AMP;SS))     {        s[j++] =  Pop (&ss)  +  ' 0 ';     }    if (z)     &nBsp;   // z Plastic Operations              return;    s[j++] =  '. ';     f = f -  (int) f;         while (i<23)     {        f = f*2;         s[j+i] =  (int) f +  ' 0 ';         f = f -  (int) f;         i++;    }}void ieee754 (char* s)     {         int j=1,i = 0,q,e,jm=0;    while (s[++i]!= '. ');     int m=1;    if (i>1)     {         while (s[m]!= ' 1 '  && m<strleN (s))  m++;        //printf ("\n i = %d m=  %d i - m = %d  ", i,m,i - m-1);  //Remove the sign bit          jm = i-m-1;    }    else         {             while (s[m]!= ' 1 '  && m<strlen (s))  m++;             //printf ("\n i = %d m= %d i - m =  %d  ", i,m,i - m);  //Remove the sign bit              jm = i-m;        }    int  js = jm;    jm = jm + 127;    char  cjm[16] =  {0};    char ws[65]={0};    xd2b (jm,cjm,true);     //reshape   convert     printf ("\ n sign bit:  %c", s[0]);     printf ("\ n order:  %s\n ", &cjm[1]);     for (Q= i -js,e=0; q<strlen (s); q++)          {             if (s[q] !=  '. ')                 ws[e++] =  s[q];        }         printf ("Mantissa:  %s", WS);     }void main () {    printf ("Code  by yanglong   0.o\n  ");     printf (" IEEE754&NBSP;&NBSP;-&GT;: ");     char s[80]={0};    double df=0.0;  &NBSP;&NBSP;SCANF ("%lf", &AMP;DF);     xd2b (Df,s,false);     printf ("%. 16lf  binary decimal:  ", DF);     bool flag =true;    int  j = 0;    for (Int i=0;i<strlen (s); i++)     {         putchar (S[i]);         if (i == 0)          {                 putchar ('   ');  //sign Bit          }        else if (i%4 ==0  )   //control             putchar ('   ');     }     ieee754 (s);     printf ("\ n");     getchar ();     getchar ();} 

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Convert decimal number to IEEE754 format