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Diff for /src/usr.bin/less/os.c between version 1.1 and 1.2

version 1.1, 1996/09/21 05:39:43 version 1.2, 1999/02/20 19:00:39
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  */   */
   
 #include "less.h"  #include "less.h"
   #include <limits.h>
 #include <signal.h>  #include <signal.h>
 #include <setjmp.h>  #include <setjmp.h>
 #if HAVE_TIME_H  #if HAVE_TIME_H
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 }  }
   
 /*  /*
  * Return the largest possible number that can fit in a long.   * Return the largest possible number that can fit in a POSITION.
  */   */
 #ifdef MAXLONG  #ifdef QUAD_MAX
         static long          static POSITION
 get_maxlong()  get_maxpos()
 {  {
         return (MAXLONG);          return (QUAD_MAX);
 }  }
 #else  #else
         static long          static POSITION
 get_maxlong()  get_maxpos()
 {  {
         long n, n2;          POSITION n, n2;
   
         /*          /*
          * Keep doubling n until we overflow.           * Keep doubling n until we overflow.
          * {{ This actually only returns the largest power of two that           * {{ This actually only returns the largest power of two that
          *    can fit in a long, but percentage() doesn't really need           *    can fit in a POSITION, but percentage() doesn't really need
          *    it any more accurate than that. }}           *    it any more accurate than that. }}
          */           */
         n2 = 128;  /* Hopefully no maxlong is less than 128! */          n2 = 128;  /* Hopefully no maxpos is less than 128! */
         do {          do {
                 n = n2;                  n = n2;
                 n2 *= 2;                  n2 *= 2;
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 #endif  #endif
   
 /*  /*
  * Return the ratio of two longs, as a percentage.   * Return the ratio of two POSITIONs, as a percentage.
  */   */
         public int          public int
 percentage(num, den)  percentage(num, den)
         long num, den;          POSITION num, den;
 {  {
         static long maxlong100 = 0;          static POSITION maxpos100 = 0;
   
         if (maxlong100 == 0)          if (maxpos100 == 0)
                 maxlong100 = get_maxlong() / 100;                  maxpos100 = get_maxpos() / 100;
         if (num > maxlong100)          if (num > maxpos100)
                 return (num / (den/100));                  return (num / (den/100));
         else          else
                 return (100*num / den);                  return (100*num / den);
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  Added in v.1.2