media-gfx/ipe/files/ipe-outputprecision.patch

   1 diff --git a/src/ipelib/ipebase.cpp b/src/ipelib/ipebase.cpp
   2 index 63de035..f4f102e 100644
   3 --- a/src/ipelib/ipebase.cpp
   4 +++ b/src/ipelib/ipebase.cpp
   5 @@ -557,55 +557,9 @@ Stream &Stream::operator<<(int i)
   6  //! Output double.
   7  Stream &Stream::operator<<(double d)
   8  {
   9 -  char buf[30];
  10 -  if (d < 0.0) {
  11 -    putChar('-');
  12 -    d = -d;
  13 -  }
  14 -  if (d >= 1e9) {
  15 -    // PDF will not be able to read this, but we have to write something.
  16 -    // Such large numbers should only happen if something is wrong.
  17 -    std::sprintf(buf, "%g", d);
  18 -    putCString(buf);
  19 -  } else if (d < 1e-8) {
  20 -    putChar('0');
  21 -  } else {
  22 -    // Print six significant digits, but omit trailing zeros.
  23 -    // Probably I'll want to have adjustable precision later.
  24 -    int factor;
  25 -    if (d > 1000.0)
  26 -      factor = 100L;
  27 -    else if (d > 100.0)
  28 -      factor = 1000L;
  29 -    else if (d > 10.0)
  30 -      factor = 10000L;
  31 -    else if (d > 1.0)
  32 -      factor = 100000L;
  33 -    else if (d > 0.1)
  34 -      factor = 1000000L;
  35 -    else if (d > 0.01)
  36 -      factor = 10000000L;
  37 -    else
  38 -      factor = 100000000L;
  39 -    double dd = trunc(d);
  40 -    int intpart = int(dd + 0.5);
  41 -    // 10^9 < 2^31
  42 -    int v = int(factor * (d - dd) + 0.5);
  43 -    if (v >= factor) {
  44 -      ++intpart;
  45 -      v -= factor;
  46 -    }
  47 -    std::sprintf(buf, "%d", intpart);
  48 -    putCString(buf);
  49 -    int mask = factor / 10;
  50 -    if (v != 0) {
  51 -      putChar('.');
  52 -      while (v != 0) {
  53 -       putChar('0' + v / mask);
  54 -       v = (10 * v) % factor;
  55 -      }
  56 -    }
  57 -  }
  58 +  char buf[101];
  59 +  std::snprintf(buf, 100, "%.20g", d);
  60 +  putCString(buf);
  61    return *this;
  62  }
  63