src/base/output/cl_output_hex.cc

   1 // fprinthexadecimal().
   2
   3 // General includes.
   4 #include "cl_sysdep.h"
   5
   6 // Specification.
   7 #include "cl_io.h"
   8
   9
  10 // Implementation.
  11
  12 #if defined(CL_IO_STDIO)
  13
  14 void fprinthexadecimal (cl_ostream stream, unsigned long x)
  15 {
  16         fprintf(stream,"%lX",x);
  17 }
  18
  19 #endif
  20
  21 #if defined(CL_IO_IOSTREAM)
  22
  23 void fprinthexadecimal (cl_ostream stream, unsigned long x)
  24 {
  25         #define bufsize 16
  26         var char buf[bufsize+1];
  27         var char* bufptr = &buf[bufsize];
  28         *bufptr = '\0';
  29         do {
  30                 unsigned long q = x / 16;
  31                 unsigned long r = x % 16;
  32                 *--bufptr = (r<10 ? '0'+r : 'A'-10+r);
  33                 x = q;
  34         } while (x > 0);
  35         fprint(stream,bufptr);
  36         #undef bufsize
  37 }
  38
  39 #endif
  40
  41 void fprinthexadecimal (cl_ostream stream, long x)
  42 {
  43         if (x >= 0)
  44                 fprintdecimal(stream,(unsigned long)x);
  45         else {
  46                 fprintchar(stream,'-');
  47                 fprintdecimal(stream,(unsigned long)(-1-x)+1);
  48         }
  49 }