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< h1 > Boost Integer Library< / h1 >
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< td align = "center" > < b > < i > Header / Docs< / i > < / b > < / td >
< td align = "center" > < b > < i > Contents< / i > < / b > < / td >
< td align = "center" > < b > < i > Use< / i > < / b > < / td >
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< td align = "center" > < code > < a href = "../../boost/cstdint.hpp" > < boost/cstdint.hpp> < br >
< / a > < / code > < a href = "cstdint.htm" > < br >
documentation< / a >
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< td valign = "top" > Typedef's based on the 1999 C Standard header < < code > stdint.h> < / code > , wrapped in namespace boost.
This implementation may #include the compiler
supplied < < code > stdint.h> < / code > , if present. < / td >
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< td valign = "top" > Supplies typedefs for standard integer types such as < code > int32_t< / code > or < code > uint_least16_t< / code > .
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Use in preference to < < code > stdint.h> < / code >
for enhanced portability. Furthermore, all names are safely placed in the boost namespace.< / td >
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< td align = "center" > < code > < a href = "../../boost/integer_traits.hpp" > < boost/integer_traits.hpp> < / a > < / code > < br >
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< a href = "integer_traits.html" > documentation< / a >
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< td valign = "top" > Template class < code > boost::integer_traits< / code > , derived from < code > std::numeric_limits< / code > .
Adds < code > const_min< / code > and < code > const_max< / code > members.< / td >
< td valign = "top" > Use to obtain the characteristics of a known integer type.< / td >
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< td align = "center" > < code > < a href = "../../boost/integer.hpp" > < boost/integer.hpp> < / a > < br >
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< / code > < a href = "integer.htm" > documentation< / a > < / td >
< td valign = "top" > Templates for integer type selection based on properties such as
maximum value or number of bits.< / td >
< td valign = "top" > Use to select the type an integer when some property such as maximum value or number of bits is known.
Useful for generic programming. < / td >
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< h2 > Rationale< / h2 >
< p > The organization of boost integer headers and classes is designed to take
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advantage of < code > < stdint.h> < / code > types from the 1999 C standard
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without resorting to undefined behavior in terms of
the 1998 C++ standard. The header < code > < boost/cstdint.hpp> < / code >
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makes the standard integer types safely available in namespace boost without placing any names in namespace std. As always, the intension is to complement rather than
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compete with the C++ Standard Library. Should some future C++ standard
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include < code > < stdint.h> < / code > and < code > < cstdint> < / code > , then < code > < boost/cstdint.hpp> < / code >
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will continue to function, but will become redundant and may be safely deprecated.< / p >
< p > Because these are boost headers, their names conform to boost header naming
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conventions rather than C++ Standard Library header naming conventions.
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< h2 > Caveat emptor< / h2 >
< p > As an
implementation artifact, certain C < limits.h> macro names may possibly be
visible to users of < boost/cstdint.hpp> . Don't use these macros; they are not part of
any Boost specified interface.
Use boost:: integer_traits< > or std::numeric_limits< > instead.< / p >
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< p >
As another implementation artifact, certain C
< code > < stdint.h> < / code > typedef names may possibly be visible in the
global namespace to users of < code > < boost/cstdint.hpp> < / code > .
Don't use these names, they are not part of any Boost specified
interface. Use the respective names in namespace < code > boost< / code >
instead.
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< hr >
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< p > Revised: <!-- webbot bot="Timestamp" S - Type="EDITED" S - Format="%d %b %Y" startspan --> 19 Aug 2001<!-- webbot bot="Timestamp" endspan i - checksum="14767" -->
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