Add "integer width" and "numeric limits" support to uclibc++ for ptlib.

See bug #3555.


git-svn-id: svn://svn.openwrt.org/openwrt/packages@11522 3c298f89-4303-0410-b956-a3cf2f4a3e73

libs/uclibc++/patches/007-numeric_limits.patch

@@ -0,0 +1,66 @@
+Index: uClibc++-0.2.2/include/limits
+===================================================================
+--- uClibc++-0.2.2/include/limits	(revision 1877)
++++ uClibc++-0.2.2/include/limits	(revision 1878)
+@@ -143,6 +143,53 @@
+ 	static T signaling_NaN();
+ };
+ 
++template <> class numeric_limits<bool> {
++public:
++	typedef bool T;
++	// General -- meaningful for all specializations.
++	static const bool is_specialized = true;
++	static T min(){
++		return false;
++	}
++	static T max(){
++		return true;
++	}
++	static const int radix = 2;
++	static const int digits = 1;
++	static const int digits10 = 0;
++	static const bool is_signed = false;
++	static const bool is_integer = true;
++	static const bool is_exact = true;
++	static const bool traps = false;
++	static const bool is_modulo = false;
++	static const bool is_bounded = true;
++
++	// Floating point specific.
++
++	static T epsilon(){
++		return 0;
++	}
++	static T round_error(){
++		return 0;
++	}
++	static const int min_exponent10 = 0;
++	static const int max_exponent10 = 0;
++	static const int min_exponent = 0;
++
++	static const int max_exponent = 0;
++	static const bool has_infinity = false;
++	static const bool has_quiet_NaN = false;
++	static const bool has_signaling_NaN = false;
++	static const bool is_iec559 = false;
++	static const bool has_denorm = false;
++	static const bool tinyness_before = false;
++	static const float_round_style round_style = round_indeterminate;
++	static T denorm_min();
++	static T infinity();
++	static T quiet_NaN();
++	static T signaling_NaN();
++};
++
+ template <> class numeric_limits<unsigned char> {
+ public:
+ 	typedef unsigned char T;
+@@ -567,6 +614,7 @@
+ };
+ 
+ template <> class numeric_limits<double> {
++public:
+ 	typedef double numeric_type;
+ 
+ 	static const bool is_specialized = true;