-
boost 1.49.0 :
-
Restored work with typedefed wchar_t (compilation flag /Zc:wchar_t-
for Visual Studio).
-
Better performance and less memory usage for
boost::container::basic_string
conversions.
-
boost 1.48.0 :
-
Added code to work with Inf and NaN on any platform.
-
Better performance and less memory usage for conversions to float
type (and to double type, if
sizeof(double) < sizeof(long double)).
-
boost 1.47.0 :
-
Optimizations for "C" and other locales without number
grouping.
-
Better performance and less memory usage for unsigned char and signed
char conversions.
-
Better performance and less memory usage for conversions to arithmetic
types.
-
Better performance and less memory usage for conversions from arithmetic
type to arithmetic type.
-
Directly construct Target from Source on some conversions (like conversions
from string to string, from char array to string, from char to char
and others).
-
boost 1.34.0 :
-
boost 1.33.0 :
-
Call-by-const reference for the parameters. This requires partial
specialization of class templates, so it doesn't work for MSVC 6,
and it uses the original pass by value there.
-
The MSVC 6 support is deprecated, and will be removed in a future
Boost version.
-
Earlier :
-
The previous version of lexical_cast used the default stream precision
for reading and writing floating-point numbers. For numerics that
have a corresponding specialization of
std::numeric_limits,
the current version now chooses a precision to match.
-
The previous version of lexical_cast did not support conversion to
or from any wide-character-based types. For compilers with full language
and library support for wide characters,
lexical_cast
now supports conversions from wchar_t,
wchar_t *,
and std::wstring and to wchar_t
and std::wstring.
-
The previous version of
lexical_cast
assumed that the conventional stream extractor operators were sufficient
for reading values. However, string I/O is asymmetric, with the result
that spaces play the role of I/O separators rather than string content.
The current version fixes this error for std::string
and, where supported, std::wstring:
lexical_cast<std::string>("Hello, World")
succeeds instead of failing with a bad_lexical_cast
exception.
-
The previous version of
lexical_cast
allowed unsafe and meaningless conversions to pointers. The current
version now throws a bad_lexical_cast
for conversions to pointers: lexical_cast<char
*>("Goodbye,
World") now
throws an exception instead of causing undefined behavior.
