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Refine and correct the comments based on recent consensus(es) with co-authors.

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This commit is contained in:
Christopher Kormanyos
2014-01-21 23:59:16 +01:00
parent afcf566a53
commit a3c1b273cb
1 changed files with 11 additions and 9 deletions
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20
include/boost/cstdfloat.hpp
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@@ -7,7 +7,7 @@
// or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// <cstdfloat.hpp> implements floating-point typedefs having
// <boost/cstdfloat.hpp> implements floating-point typedefs having
// specified widths, as described in N3626 (proposed for C++14).
// See: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3626.pdf
@@ -44,10 +44,10 @@
// Ensure that the compiler has a radix-2 floating-point representation.
#if (!defined(FLT_RADIX) || ((defined(FLT_RADIX) && (FLT_RADIX != 2))))
#error The compiler does not support radix-2 floating-point types required for <cstdfloat.hpp>.
#error The compiler does not support radix-2 floating-point types required for <boost/cstdfloat.hpp>.
#endif
// Check if built-in float is equivalent to float16_t, float24_t, float32_t, float64_t, float80_t, or float128_t.
// Check if built-in float is equivalent to float16_t, float32_t, float64_t, float80_t, or float128_t.
#if(defined(FLT_MANT_DIG) && defined(FLT_MAX_EXP))
#if ((FLT_MANT_DIG == 11) && (FLT_MAX_EXP == 16) && (BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE == 0))
#define BOOST_CSTDFLOAT_FLOAT16_NATIVE_TYPE float
@@ -97,7 +97,7 @@
#endif
#endif
// Check if built-in double is equivalent to float16_t, float24_t, float32_t, float64_t, float80_t, or float128_t.
// Check if built-in double is equivalent to float16_t, float32_t, float64_t, float80_t, or float128_t.
#if(defined(DBL_MANT_DIG) && defined(DBL_MAX_EXP))
#if ((DBL_MANT_DIG == 11) && (DBL_MAX_EXP == 16) && (BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE == 0))
#define BOOST_CSTDFLOAT_FLOAT16_NATIVE_TYPE double
@@ -147,7 +147,7 @@
#endif
#endif
// Check if built-in long double is equivalent to float16_t, float24_t, float32_t, float64_t, float80_t, or float128_t.
// Check if built-in long double is equivalent to float16_t, float32_t, float64_t, float80_t, or float128_t.
#if(defined(LDBL_MANT_DIG) && defined(LDBL_MAX_EXP))
#if ((LDBL_MANT_DIG == 11) && (LDBL_MAX_EXP == 16) && (BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE == 0))
#define BOOST_CSTDFLOAT_FLOAT16_NATIVE_TYPE long double
@@ -222,7 +222,7 @@
&& (BOOST_CSTDFLOAT_HAS_FLOAT64_NATIVE_TYPE == 0) \
&& (BOOST_CSTDFLOAT_HAS_FLOAT80_NATIVE_TYPE == 0) \
&& (BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE == 0))
#error The compiler does not support any of the floating-point types required for <cstdfloat.hpp>.
#error The compiler does not support any of the floating-point types required for <boost/cstdfloat.hpp>.
#endif
// The following section contains the various min/max macros
@@ -290,7 +290,7 @@
#define BOOST_FLOATMAX_MIN BOOST_FLOAT_128_MIN
#define BOOST_FLOATMAX_MAX BOOST_FLOAT_128_MAX
#else
#error The maximum available floating-point width for <cstdfloat.hpp> is undefined.
#error The maximum available floating-point width for <boost/cstdfloat.hpp> is undefined.
#endif
// Here, we define the floating-point typedefs having specified widths.
@@ -354,7 +354,9 @@
typedef float128_t float_fast128_t;
typedef float128_t float_least128_t;
// TODO: Is it sensible (in any way) to supply a specialization of numeric_limits for GCC's __float128?
// Here, we decide that it is not sensible to use or to provide (in any way)
// a specialization of numeric_limits for the compiler-specific type __float128.
// Users must provide their own mechanism for this.
#if !defined(BOOST_MATH_USE_FLOAT128)
BOOST_STATIC_ASSERT(std::numeric_limits<float128_t>::is_iec559 == true);
BOOST_STATIC_ASSERT(std::numeric_limits<float128_t>::radix == 2);
@@ -374,7 +376,7 @@
#elif(BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH == 128)
typedef float128_t floatmax_t;
#else
#error The maximum available floating-point width for <cstdfloat.hpp> is undefined.
#error The maximum available floating-point width for <boost/cstdfloat.hpp> is undefined.
#endif
}
// namespace boost