Reroot the exception hierarchy into a toplevel Exception class

As the alternatives are unfortunate for applications trying to catch
all library errors, and it seems deriving from std::runtime_error
causes problems with MSVC DLLs (GH #340)

Effectively reverts 2837e915d82e43

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib/math/ec_gfp/point_gfp.cpp b/src/lib/math/ec_gfp/point_gfp.cpp
index c81c4ee5a..93508ba55 100644
--- a/src/lib/math/ec_gfp/point_gfp.cpp
+++ b/src/lib/math/ec_gfp/point_gfp.cpp
@@ -323,7 +323,7 @@ Blinded_Point_Multiply::Blinded_Point_Multiply(const PointGFp& base, const BigIn
    {
    // Upper bound is a sanity check rather than hard limit
    if(m_h < 1 || m_h > 8)
-      throw std::invalid_argument("Blinded_Point_Multiply invalid h param");
+      throw Invalid_Argument("Blinded_Point_Multiply invalid h param");
 
    const CurveGFp& curve = base.get_curve();
 
@@ -362,7 +362,7 @@ PointGFp Blinded_Point_Multiply::blinded_multiply(const BigInt& scalar_in,
                                                   RandomNumberGenerator& rng)
    {
    if(scalar_in.is_negative())
-      throw std::invalid_argument("Blinded_Point_Multiply scalar must be positive");
+      throw Invalid_Argument("Blinded_Point_Multiply scalar must be positive");
 
 #if BOTAN_POINTGFP_SCALAR_BLINDING_BITS > 0
    // Choose a small mask m and use k' = k + m*order (Coron's 1st countermeasure)