From 3955eeee449327250522c12721b8c37250752a18 Mon Sep 17 00:00:00 2001
From: Thomas Grill <xovo@users.sourceforge.net>
Date: Sat, 5 Jul 2003 02:32:45 +0000
Subject:  ""

svn path=/trunk/; revision=746
---
 externals/grill/flext/changes.txt        |  1 +
 externals/grill/flext/source/flatom.cpp  | 39 ++++++++++++++++++++++++++++++++
 externals/grill/flext/source/flsupport.h | 19 ++++++++++++++++
 3 files changed, 59 insertions(+)

(limited to 'externals/grill')

diff --git a/externals/grill/flext/changes.txt b/externals/grill/flext/changes.txt
index 4fcc9bf2..f4539886 100644
--- a/externals/grill/flext/changes.txt
+++ b/externals/grill/flext/changes.txt
@@ -23,6 +23,7 @@ Version history:
 - "getattributes" or "getmethods" output lists are now alphabethically sorted
 - flext::StopThread function to terminate running threads (started with LaunchThread)
 - added flext::post() and flext::error() console printing (thread-safe)
+- added flext::CmpAtom and AtomList::operator < methods ... useful for using lists as keys for STL
 
 0.4.4:
 - fixed deadly bug for Max/MSP method-to-symbol-binding proxies
diff --git a/externals/grill/flext/source/flatom.cpp b/externals/grill/flext/source/flatom.cpp
index 0e7eb544..45739e66 100644
--- a/externals/grill/flext/source/flatom.cpp
+++ b/externals/grill/flext/source/flatom.cpp
@@ -14,6 +14,32 @@ WARRANTIES, see the file, "license.txt," in this distribution.
  
 #include "flext.h"
 
+#if FLEXT_SYS != FLEXT_SYS_JMAX
+int flext::CmpAtom(const t_atom &a,const t_atom &b)
+{
+	if(GetType(a) == GetType(b)) {
+		switch(GetType(a)) {
+			case A_FLOAT: return GetFloat(a) == GetFloat(b)?0:(GetFloat(a) < GetFloat(b)?-1:1);
+#if FLEXT_SYS == FLEXT_SYS_MAX
+			case A_INT: return GetInt(a) == GetInt(b)?0:(GetInt(a) < GetInt(b)?-1:1);
+#endif
+			case A_SYMBOL: return GetSymbol(a) == GetSymbol(b)?0:(GetSymbol(a) < GetSymbol(b)?-1:1);
+#if FLEXT_SYS == FLEXT_SYS_PD
+			case A_POINTER: return GetPointer(a) == GetPointer(b)?0:(GetPointer(a) < GetPointer(b)?-1:1);
+#endif
+			default:
+				// can't be compared.....
+				FLEXT_ASSERT(false);
+				return 0;
+		}
+	}
+	else
+		return GetType(a) < GetType(b)?-1:1;
+}
+#else
+#error Not implemented
+#endif
+
 t_atom *flext::CopyList(int argc,const t_atom *argv)
 {
 	int i;
@@ -52,6 +78,19 @@ flext::AtomList &flext::AtomList::Set(int argc,const t_atom *argv,int offs,bool
 	return *this;
 }
 
+int flext::AtomList::Compare(const AtomList &a) const
+{
+	if(Count() == a.Count()) {
+		for(int i = 0; i < Count(); ++i) {
+			int cmp = CmpAtom((*this)[i],a[i]);
+			if(cmp) return cmp;
+		}
+		return 0;
+	}
+	else 
+		return Count() < a.Count()?-1:1;
+}
+
 
 #if FLEXT_SYS != FLEXT_SYS_JMAX 
 // not for jmax as long as t_symbol * == char *
diff --git a/externals/grill/flext/source/flsupport.h b/externals/grill/flext/source/flsupport.h
index 457ed4d0..f2129d7c 100644
--- a/externals/grill/flext/source/flsupport.h
+++ b/externals/grill/flext/source/flsupport.h
@@ -293,6 +293,15 @@ public:
 		
 	//! Set atom from another atom
 	static void SetAtom(t_atom &a,const t_atom &b) { CopyAtom(&a,&b); }
+	//! Compare two atoms
+	static int CmpAtom(const t_atom &a,const t_atom &b);
+
+	static bool operator ==(const t_atom &a,const t_atom &b) { return CmpAtom(a,b) == 0; }
+	static bool operator !=(const t_atom &a,const t_atom &b) { return CmpAtom(a,b) != 0; }
+	static bool operator <(const t_atom &a,const t_atom &b) { return CmpAtom(a,b) < 0; }
+	static bool operator <=(const t_atom &a,const t_atom &b) { return CmpAtom(a,b) <= 0; }
+	static bool operator >(const t_atom &a,const t_atom &b) { return CmpAtom(a,b) > 0; }
+	static bool operator >=(const t_atom &a,const t_atom &b) { return CmpAtom(a,b) >= 0; }
 
 #if FLEXT_SYS == FLEXT_SYS_JMAX
 	//! Set atom from another atom
@@ -479,6 +488,16 @@ public:
 		//! Set list by another AtomList
 		AtomList &operator =(const AtomList &a) { return operator()(a.Count(),a.Atoms()); }
 
+		//! Compare list to another AtomList ( -1..< , 0..==, 1...> )
+		int Compare(const AtomList &a) const;
+
+		bool operator <(const AtomList &a) const { return Compare(a) < 0; }
+		bool operator <=(const AtomList &a) const { return Compare(a) <= 0; }
+		bool operator >(const AtomList &a) const { return Compare(a) > 0; }
+		bool operator >=(const AtomList &a) const { return Compare(a) >= 0; }
+		bool operator ==(const AtomList &a) const { return Compare(a) == 0; }
+		bool operator !=(const AtomList &a) const { return Compare(a) != 0; }
+
 		//! Get number of atoms in the list
 		int Count() const { return cnt; }
 		//! Get a reference to an indexed atom
-- 
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