diff options
Diffstat (limited to 'src/engine/gnump/gmp_wrap.cpp')
-rw-r--r-- | src/engine/gnump/gmp_wrap.cpp | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/src/engine/gnump/gmp_wrap.cpp b/src/engine/gnump/gmp_wrap.cpp deleted file mode 100644 index 974593d02..000000000 --- a/src/engine/gnump/gmp_wrap.cpp +++ /dev/null @@ -1,101 +0,0 @@ -/* -* GMP Wrapper -* (C) 1999-2007 Jack Lloyd -* -* Distributed under the terms of the Botan license -*/ - -#include <botan/internal/gmp_wrap.h> - -#define GNU_MP_VERSION_CODE_FOR(a,b,c) ((a << 16) | (b << 8) | (c)) - -#define GNU_MP_VERSION_CODE \ - GNU_MP_VERSION_CODE_FOR(__GNU_MP_VERSION, __GNU_MP_VERSION_MINOR, \ - __GNU_MP_VERSION_PATCHLEVEL) - -#if GNU_MP_VERSION_CODE < GNU_MP_VERSION_CODE_FOR(4,1,0) - #error Your GNU MP install is too old, upgrade to 4.1 or later -#endif - -namespace Botan { - -/* -* GMP_MPZ Constructor -*/ -GMP_MPZ::GMP_MPZ(const BigInt& in) - { - mpz_init(value); - if(in != 0) - mpz_import(value, in.sig_words(), -1, sizeof(word), 0, 0, in.data()); - } - -/* -* GMP_MPZ Constructor -*/ -GMP_MPZ::GMP_MPZ(const byte in[], size_t length) - { - mpz_init(value); - mpz_import(value, length, 1, 1, 0, 0, in); - } - -/* -* GMP_MPZ Copy Constructor -*/ -GMP_MPZ::GMP_MPZ(const GMP_MPZ& other) - { - mpz_init_set(value, other.value); - } - -/* -* GMP_MPZ Destructor -*/ -GMP_MPZ::~GMP_MPZ() - { - mpz_clear(value); - } - -/* -* GMP_MPZ Assignment Operator -*/ -GMP_MPZ& GMP_MPZ::operator=(const GMP_MPZ& other) - { - mpz_set(value, other.value); - return (*this); - } - -/* -* Export the mpz_t as a bytestring -*/ -void GMP_MPZ::encode(byte out[], size_t length) const - { - size_t dummy = 0; - mpz_export(out + (length - bytes()), &dummy, 1, 1, 0, 0, value); - } - -/* -* Return the number of significant bytes -*/ -size_t GMP_MPZ::bytes() const - { - return ((mpz_sizeinbase(value, 2) + 7) / 8); - } - -/* -* GMP to BigInt Conversions -*/ -BigInt GMP_MPZ::to_bigint() const - { - BigInt out(BigInt::Positive, (bytes() + sizeof(word) - 1) / sizeof(word)); - size_t dummy = 0; - - word* reg = out.mutable_data(); - - mpz_export(reg, &dummy, -1, sizeof(word), 0, 0, value); - - if(mpz_sgn(value) < 0) - out.flip_sign(); - - return out; - } - -} |