diff options
Diffstat (limited to 'src/engine/gnump/gmp_wrap.cpp')
| -rw-r--r-- | src/engine/gnump/gmp_wrap.cpp | 58 |
1 files changed, 30 insertions, 28 deletions
diff --git a/src/engine/gnump/gmp_wrap.cpp b/src/engine/gnump/gmp_wrap.cpp index 4c73c2562..735fc7070 100644 --- a/src/engine/gnump/gmp_wrap.cpp +++ b/src/engine/gnump/gmp_wrap.cpp @@ -1,7 +1,9 @@ -/************************************************* -* GMP Wrapper Source File * -* (C) 1999-2007 Jack Lloyd * -*************************************************/ +/* +* GMP Wrapper +* (C) 1999-2007 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ #include <botan/gmp_wrap.h> @@ -17,9 +19,9 @@ namespace Botan { -/************************************************* -* GMP_MPZ Constructor * -*************************************************/ +/* +* GMP_MPZ Constructor +*/ GMP_MPZ::GMP_MPZ(const BigInt& in) { mpz_init(value); @@ -27,60 +29,60 @@ GMP_MPZ::GMP_MPZ(const BigInt& in) mpz_import(value, in.sig_words(), -1, sizeof(word), 0, 0, in.data()); } -/************************************************* -* GMP_MPZ Constructor * -*************************************************/ +/* +* GMP_MPZ Constructor +*/ GMP_MPZ::GMP_MPZ(const byte in[], u32bit length) { mpz_init(value); mpz_import(value, length, 1, 1, 0, 0, in); } -/************************************************* -* GMP_MPZ Copy Constructor * -*************************************************/ +/* +* GMP_MPZ Copy Constructor +*/ GMP_MPZ::GMP_MPZ(const GMP_MPZ& other) { mpz_init_set(value, other.value); } -/************************************************* -* GMP_MPZ Destructor * -*************************************************/ +/* +* GMP_MPZ Destructor +*/ GMP_MPZ::~GMP_MPZ() { mpz_clear(value); } -/************************************************* -* GMP_MPZ Assignment Operator * -*************************************************/ +/* +* 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 * -*************************************************/ +/* +* Export the mpz_t as a bytestring +*/ void GMP_MPZ::encode(byte out[], u32bit length) const { size_t dummy = 0; mpz_export(out + (length - bytes()), &dummy, 1, 1, 0, 0, value); } -/************************************************* -* Return the number of significant bytes * -*************************************************/ +/* +* Return the number of significant bytes +*/ u32bit GMP_MPZ::bytes() const { return ((mpz_sizeinbase(value, 2) + 7) / 8); } -/************************************************* -* GMP to BigInt Conversions * -*************************************************/ +/* +* GMP to BigInt Conversions +*/ BigInt GMP_MPZ::to_bigint() const { BigInt out(BigInt::Positive, (bytes() + sizeof(word) - 1) / sizeof(word)); |