diff options
Diffstat (limited to 'third_party/bigint/BigUnsignedInABase.cc')
| -rw-r--r-- | third_party/bigint/BigUnsignedInABase.cc | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/third_party/bigint/BigUnsignedInABase.cc b/third_party/bigint/BigUnsignedInABase.cc index 999faaf2db..a24042d538 100644 --- a/third_party/bigint/BigUnsignedInABase.cc +++ b/third_party/bigint/BigUnsignedInABase.cc @@ -1,15 +1,29 @@ +// 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. + #include "BigUnsignedInABase.hh" BigUnsignedInABase::BigUnsignedInABase(const Digit *d, Index l, Base base) : NumberlikeArray<Digit>(d, l), base(base) { // Check the base if (base < 2) +#ifdef FOXIT_CHROME_BUILD + abort(); +#else throw "BigUnsignedInABase::BigUnsignedInABase(const Digit *, Index, Base): The base must be at least 2"; +#endif // Validate the digits. for (Index i = 0; i < l; i++) if (blk[i] >= base) +#ifdef FOXIT_CHROME_BUILD + abort(); +#else throw "BigUnsignedInABase::BigUnsignedInABase(const Digit *, Index, Base): A digit is too large for the specified base"; +#endif // Eliminate any leading zeros we may have been passed. zapLeadingZeros(); @@ -32,7 +46,11 @@ namespace { BigUnsignedInABase::BigUnsignedInABase(const BigUnsigned &x, Base base) { // Check the base if (base < 2) +#ifdef FOXIT_CHROME_BUILD + abort(); +#else throw "BigUnsignedInABase(BigUnsigned, Base): The base must be at least 2"; +#endif this->base = base; // Get an upper bound on how much space we need @@ -73,7 +91,11 @@ BigUnsignedInABase::operator BigUnsigned() const { BigUnsignedInABase::BigUnsignedInABase(const std::string &s, Base base) { // Check the base. if (base > 36) +#ifdef FOXIT_CHROME_BUILD + abort(); +#else throw "BigUnsignedInABase(std::string, Base): The default string conversion routines use the symbol set 0-9, A-Z and therefore support only up to base 36. You tried a conversion with a base over 36; write your own string conversion routine."; +#endif // Save the base. // This pattern is seldom seen in C++, but the analogous ``this.'' is common in Java. this->base = base; @@ -94,17 +116,29 @@ BigUnsignedInABase::BigUnsignedInABase(const std::string &s, Base base) { else if (theSymbol >= 'a' && theSymbol <= 'z') blk[digitNum] = theSymbol - 'a' + 10; else +#ifdef FOXIT_CHROME_BUILD + abort(); +#else throw "BigUnsignedInABase(std::string, Base): Bad symbol in input. Only 0-9, A-Z, a-z are accepted."; +#endif if (blk[digitNum] >= base) +#ifdef FOXIT_CHROME_BUILD + abort(); +#else throw "BigUnsignedInABase::BigUnsignedInABase(const Digit *, Index, Base): A digit is too large for the specified base"; +#endif } zapLeadingZeros(); } BigUnsignedInABase::operator std::string() const { if (base > 36) +#ifdef FOXIT_CHROME_BUILD + abort(); +#else throw "BigUnsignedInABase ==> std::string: The default string conversion routines use the symbol set 0-9, A-Z and therefore support only up to base 36. You tried a conversion with a base over 36; write your own string conversion routine."; +#endif if (len == 0) return std::string("0"); // Some compilers don't have push_back, so use a char * buffer instead. |