diff options
Diffstat (limited to 'third_party/bigint/BigUnsigned.hh')
| -rw-r--r-- | third_party/bigint/BigUnsigned.hh | 50 |
1 files changed, 44 insertions, 6 deletions
diff --git a/third_party/bigint/BigUnsigned.hh b/third_party/bigint/BigUnsigned.hh index adf1c00bc3..ee40522c54 100644 --- a/third_party/bigint/BigUnsigned.hh +++ b/third_party/bigint/BigUnsigned.hh @@ -1,3 +1,9 @@ +// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code by Matt McCutchen, see the LICENSE file. + #ifndef BIGUNSIGNED_H #define BIGUNSIGNED_H @@ -84,8 +90,8 @@ public: // BIT/BLOCK ACCESSORS // Expose these from NumberlikeArray directly. - NumberlikeArray<Blk>::getCapacity; - NumberlikeArray<Blk>::getLength; + using NumberlikeArray<Blk>::getCapacity; + using NumberlikeArray<Blk>::getLength; /* Returns the requested block, or 0 if it is beyond the length (as if * the number had 0s infinitely to the left). */ @@ -260,14 +266,24 @@ inline BigUnsigned BigUnsigned::operator *(const BigUnsigned &x) const { return ans; } inline BigUnsigned BigUnsigned::operator /(const BigUnsigned &x) const { - if (x.isZero()) throw "BigUnsigned::operator /: division by zero"; + if (x.isZero()) +#ifdef FOXIT_CHROME_BUILD + abort(); +#else + throw "BigUnsigned::operator /: division by zero"; +#endif BigUnsigned q, r; r = *this; r.divideWithRemainder(x, q); return q; } inline BigUnsigned BigUnsigned::operator %(const BigUnsigned &x) const { - if (x.isZero()) throw "BigUnsigned::operator %: division by zero"; + if (x.isZero()) +#ifdef FOXIT_CHROME_BUILD + abort(); +#else + throw "BigUnsigned::operator %: division by zero"; +#endif BigUnsigned q, r; r = *this; r.divideWithRemainder(x, q); @@ -309,7 +325,12 @@ inline void BigUnsigned::operator *=(const BigUnsigned &x) { multiply(*this, x); } inline void BigUnsigned::operator /=(const BigUnsigned &x) { - if (x.isZero()) throw "BigUnsigned::operator /=: division by zero"; + if (x.isZero()) +#ifdef FOXIT_CHROME_BUILD + abort(); +#else + throw "BigUnsigned::operator /=: division by zero"; +#endif /* The following technique is slightly faster than copying *this first * when x is large. */ BigUnsigned q; @@ -318,7 +339,12 @@ inline void BigUnsigned::operator /=(const BigUnsigned &x) { *this = q; } inline void BigUnsigned::operator %=(const BigUnsigned &x) { - if (x.isZero()) throw "BigUnsigned::operator %=: division by zero"; + if (x.isZero()) +#ifdef FOXIT_CHROME_BUILD + abort(); +#else + throw "BigUnsigned::operator %=: division by zero"; +#endif BigUnsigned q; // Mods *this by x. Don't care about quotient left in q. divideWithRemainder(x, q); @@ -372,8 +398,12 @@ void BigUnsigned::initFromPrimitive(X x) { template <class X> void BigUnsigned::initFromSignedPrimitive(X x) { if (x < 0) +#ifdef FOXIT_CHROME_BUILD + abort(); +#else throw "BigUnsigned constructor: " "Cannot construct a BigUnsigned from a negative number"; +#endif else initFromPrimitive(x); } @@ -397,8 +427,12 @@ X BigUnsigned::convertToPrimitive() const { return x; // Otherwise fall through. } +#ifdef FOXIT_CHROME_BUILD + abort(); +#else throw "BigUnsigned::to<Primitive>: " "Value is too big to fit in the requested type"; +#endif } /* Wrap the above in an x >= 0 test to make sure we got a nonnegative result, @@ -411,8 +445,12 @@ X BigUnsigned::convertToSignedPrimitive() const { if (x >= 0) return x; else +#ifdef FOXIT_CHROME_BUILD + abort(); +#else throw "BigUnsigned::to(Primitive): " "Value is too big to fit in the requested type"; +#endif } #endif |