GfxSubpath::GfxSubpath(double x1, double y1) {
  size = 16;
  x = (double *)gmallocn(size, sizeof(double));
  y = (double *)gmallocn(size, sizeof(double));
  curve = (GBool *)gmallocn(size, sizeof(GBool));
  n = 1;
  x[0] = x1;
  y[0] = y1;
  curve[0] = gFalse;
  closed = gFalse;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.