Plan 9 from Bell Labs’s /usr/web/sources/contrib/steve/root/sys/src/cmd/tex/web2c/lib/fprintreal.c

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Distributed under the MIT License.
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/* fprintreal.c: print the real number R in the Pascal format N:M on the
   file F.  */

#include "config.h"

void
fprintreal P4C(FILE*, f, double, r, int, n, int, m)
{
  char fmt[50];  /* Surely enough, since N and M won't be more than 25
                    digits each!  */

  sprintf (fmt, "%%%d.%dlf", n, m);
  fprintf (f, fmt, r);
}

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