} // end of WriteLargestCoordinateFunctions()
/// <summary>
/// Writes code to extract the scalar part of an SMV via a non-member function.
/// </summary>
/// <param name="S"></param>
/// <param name="cgd">Results go here. Also intermediate data for code generation. Also contains plugins and cog.</param>
public static void WriteExtractScalarPart(Specification S, G25.CG.Shared.CGdata cgd)
{
G25.GMV gmv = S.m_GMV;
StringBuilder declSB = cgd.m_declSB;
StringBuilder defSB = (S.m_inlineFunctions) ? cgd.m_inlineDefSB : cgd.m_defSB;
declSB.AppendLine("");
defSB.AppendLine("");
const string gmvName = "x";
RefGA.BasisBlade scalarBlade = RefGA.BasisBlade.ONE;
string inlineStr = G25.CG.Shared.Util.GetInlineString(S, S.m_inlineFunctions, " ");
foreach (G25.FloatType FT in S.m_floatTypes)
{
string className = FT.GetMangledName(S, gmv.Name);
string funcName = "_" + FT.type;
string altFuncName = "_Float";
string comment = "/// Returns scalar part of " + className;
declSB.AppendLine(comment);
string funcDecl = FT.type + " " + funcName + "(const " + className + " &" + gmvName + ")";
declSB.Append(funcDecl);
declSB.AppendLine(";");
declSB.AppendLine(comment);
string altFuncDecl = FT.type + " " + altFuncName + "(const " + className + " &" + gmvName + ")";
declSB.Append(G25.CG.Shared.Util.GetInlineString(S, true, " ") + altFuncDecl + " {return " + funcName + "(" + gmvName + "); }");
declSB.AppendLine(";");
defSB.Append(inlineStr + funcDecl);
{
defSB.AppendLine(" {");
int elementIdx = gmv.GetElementIdx(scalarBlade);
double multiplier = 1.0 / gmv.BasisBlade(0, elementIdx).scale;
string multiplerString = (multiplier != 1.0) ? (FT.DoubleToString(S, multiplier) + " * ") : "";
// this line assumes that the scalar is the first element of the first group (which is a requirement).
defSB.AppendLine("\treturn ((x.gu() & 1) != 0) ? " + multiplerString + "x.getC()[0] : " + FT.DoubleToString(S, 0.0) + ";");
defSB.AppendLine("}");
}
} // end of loop over all float types
} // end of WriteExtractScalarPart()