Anywhere where we use MemoryRegion::begin to get access to the raw pointer

representation (rather than in an interator context), instead use &buf[0],
which works for both MemoryRegion and std::vector

1 files changed, 2 insertions, 2 deletions

diff --git a/src/math/bigint/bigint.h b/src/math/bigint/bigint.h
index 9ce71aeca..cd6997698 100644
--- a/src/math/bigint/bigint.h
+++ b/src/math/bigint/bigint.h
@@ -291,7 +291,7 @@ class BOTAN_DLL BigInt
      */
      u32bit sig_words() const
         {
-        const word* x = reg.begin();
+        const word* x = &reg[0];
         u32bit sig = reg.size();
 
         while(sig && (x[sig-1] == 0))
@@ -316,7 +316,7 @@ class BOTAN_DLL BigInt
      * @result a pointer to the start of the internal register of
      * the integer value
      */
-     const word* data() const { return reg.begin(); }
+     const word* data() const { return &reg[0]; }
 
      /**
      * return a reference to the internal register containing the value