Function FormatR

general.cpp:348–365

// fractional digits, and dropping trailing '0' characters.

void FormatR(char *sz, real r, int n)
{
  char szT[cchSzDef], *pch;
  int x = n/100, y = NAbs(n%100);

  // If n > 100, use 100's place as minimum field length for entire number.
  if (x != 0)
    sprintf(szT, "%%%d.%df", NAbs(x) + y + 1, y);
  else
    sprintf(szT, "%%.%df", NAbs(n));
  sprintf(sz, szT, r);
  for (pch = sz; *pch; pch++)
    ;
  while (pch > sz && *(--pch) == '0')    // Drop off any trailing 0 digits.
    ;
  // Positive n means ensure at least one fractional digit.
  pch[n > 0 ? 1 + (*pch == '.') : (*pch != '.')] = chNull;
}


// Blend two RGB colors along the specified proportion between them. Returned