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Fix potential ODR violation; disambiguate doxygen comments

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[SVN r82789]
This commit is contained in:
Marshall Clow
2013-02-08 17:34:57 +00:00
parent 6d22c99f2e
commit 21e88adcda
1 changed files with 12 additions and 20 deletions
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32
include/boost/algorithm/hex.hpp
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@ -10,12 +10,6 @@
/*
General problem - turn a sequence of integral types into a sequence of hexadecimal characters.
- and back.
TO DO:
1. these should really only work on integral types. (see the >> and << operations)
-- this is done, I think.
2. The 'value_type_or_char' struct is really a hack.
-- but it's a better hack now that it works with back_insert_iterators
*/
/// \file hex.hpp
@ -42,11 +36,11 @@ namespace boost { namespace algorithm {
/*!
\struct hex_decode_error
\brief Base exception class for all hex decoding errors
*/ /*!
\struct non_hex_input
\brief Thrown when a non-hex value (0-9, A-F) encountered when decoding.
Contains the offending character
*/ /*!
\struct not_enough_input
\brief Thrown when the input sequence unexpectedly ends
@ -69,17 +63,15 @@ namespace detail {
return std::copy ( res, res + num_hex_digits, out );
}
// this needs to be in an un-named namespace because it is not a template
// and might get included in several compilation units. This could cause
// multiple definition errors at link time.
namespace {
unsigned hex_char_to_int ( char c ) {
if ( c >= '0' && c <= '9' ) return c - '0';
if ( c >= 'A' && c <= 'F' ) return c - 'A' + 10;
if ( c >= 'a' && c <= 'f' ) return c - 'a' + 10;
BOOST_THROW_EXCEPTION (non_hex_input() << bad_char (c));
return 0; // keep dumb compilers happy
}
template <typename T>
unsigned char hex_char_to_int ( T val ) {
char c = static_cast<char> ( val );
unsigned retval = 0;
if ( c >= '0' && c <= '9' ) retval = c - '0';
else if ( c >= 'A' && c <= 'F' ) retval = c - 'A' + 10;
else if ( c >= 'a' && c <= 'f' ) retval = c - 'a' + 10;
else BOOST_THROW_EXCEPTION (non_hex_input() << bad_char (c));
return retval;
}
// My own iterator_traits class.
@ -134,7 +126,7 @@ namespace detail {
for ( std::size_t i = 0; i < 2 * sizeof ( T ); ++i, ++first ) {
if ( pred ( first, last ))
BOOST_THROW_EXCEPTION (not_enough_input ());
res = ( 16 * res ) + hex_char_to_int (static_cast<char> (*first));
res = ( 16 * res ) + hex_char_to_int (*first);
}
*out = res;