[PPL-devel] [GIT] ppl/ppl(floating_point): Updated intervalize documentation;

Fabio Biselli fabio.biselli at studenti.unipr.it
Thu Sep 10 10:45:54 CEST 2009


Module: ppl/ppl
Branch: floating_point
Commit: 7de79be86951bff882f83eea17bcfcfbcd7a52b5
URL:    http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=7de79be86951bff882f83eea17bcfcfbcd7a52b5

Author: Fabio Biselli <fabio.biselli at studenti.unipr.it>
Date:   Thu Sep 10 12:37:26 2009 +0200

Updated intervalize documentation;
Updated Opposite_Floating_Point_Expression documentation;

---

 src/Floating_Point_Expression.defs.hh          |   16 +++++++++++++---
 src/Opposite_Floating_Point_Expression.defs.hh |   16 +++++++++++-----
 2 files changed, 24 insertions(+), 8 deletions(-)

diff --git a/src/Floating_Point_Expression.defs.hh b/src/Floating_Point_Expression.defs.hh
index f8c8df3..16ca411 100644
--- a/src/Floating_Point_Expression.defs.hh
+++ b/src/Floating_Point_Expression.defs.hh
@@ -52,7 +52,7 @@ struct IEEE754_Double {
   A floating point expression on a given format.
 
   This class represents a concrete
-  <EM>floating point expression</EM> of format \f$$\mathbf{f}$\f$, this 
+  <EM>floating point expression</EM> of format \f$$\mathbf{f}$\f$, this
   includes constants, variables of format \f$$\mathbf{f}$\f$, binary and unary
   arithmetic operators.
 
@@ -114,7 +114,7 @@ public:
     \param int_store The interval abstract store.
     \param lf_store The linear form abstract store.
     \param result The modified linear form.
- 
+
     All variables occuring in the floating point expression MUST have
     an associated interval in \p int_store.
     If this precondition is not met, calling the method causes an
@@ -162,7 +162,7 @@ public:
     (\textrm{max}(|a|,|b|) \amifp [-2^{-\textrm{p}};2^{-\textrm{p}}])
     +
     \sum_{v \in \cV}(\textrm{max}(|a_{v}|,|b_{v}|)
-    \amifp 
+    \amifp
     [-2^{-\textrm{p}};2^{-\textrm{p}}])v
     \f]
     where p is the fraction size in bits for the format \f$\mathbf{f}\f$.
@@ -176,6 +176,16 @@ public:
      \param lf The linear form to aproximate.
      \param store The abstract store.
      \param result The linear form that will be modified.
+
+     This method modifies the given linear form <CODE>result</CODE> like
+     a function \f$\iota(l)\rho^{\#}\f$ on a linear form \f$l\f$ in an
+     abstract store \f$\rho^{\#}\f$, such as:
+     \f[
+     \iota\left(i + \sum_{v \in \cV}i_{v}v\right)\rho^{\#}
+     =
+     i \asifp \left(\bigoplus_{v \in \cV}{}_{\mathbf{f}}^{\#}i_{v} \amifp
+     \rho^{\#}(v)\right)
+     \f]
    */
   static void intervalize(const FP_Linear_Form& lf,
                           const FP_Interval_Abstract_Store& store,
diff --git a/src/Opposite_Floating_Point_Expression.defs.hh b/src/Opposite_Floating_Point_Expression.defs.hh
index 627545c..16245bf 100644
--- a/src/Opposite_Floating_Point_Expression.defs.hh
+++ b/src/Opposite_Floating_Point_Expression.defs.hh
@@ -43,12 +43,13 @@ void swap(Parma_Polyhedra_Library::Opposite_Floating_Point_Expression<
 
 namespace Parma_Polyhedra_Library {
 
-//! A generic Opposite Floating Point Expression
-/*! \ingroup PPL_CXX_interface
-  The class template type parameter \p FP_Interval_Type represents the type
-  of the intervals used in the abstract domain.
+/*! \brief
+  A generic Opposite Floating Point Expression.
+  \ingroup PPL_CXX_interface
 
-  The class template type parameter \p FP_Format represents the format
+  - The class template type parameter \p FP_Interval_Type represents the type
+  of the intervals used in the abstract domain.
+  -  The class template type parameter \p FP_Format represents the format
   of the floating point variable used in the concrete domain.
  */
 template <typename FP_Interval_Type, typename FP_Format>
@@ -109,6 +110,11 @@ public:
   /* \brief
      Returns a linear form in the abstract store \p store that simply
      represents the opposite of the operand linearization.
+
+     \param int_store The interval abstract store.
+     \param lf_store The linear form abstract store.
+     \param result The modified linear form.
+
   */
   void linearize(const FP_Interval_Abstract_Store& int_store,
                  const FP_Linear_Form_Abstract_Store& lf_store,




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