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-rw-r--r--gcc/config/dfp-bit.c680
1 files changed, 0 insertions, 680 deletions
diff --git a/gcc/config/dfp-bit.c b/gcc/config/dfp-bit.c
deleted file mode 100644
index 19f2fda..0000000
--- a/gcc/config/dfp-bit.c
+++ /dev/null
@@ -1,680 +0,0 @@
-/* This is a software decimal floating point library.
- Copyright (C) 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 3, or (at your option) any later
-version.
-
-GCC is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-for more details.
-
-Under Section 7 of GPL version 3, you are granted additional
-permissions described in the GCC Runtime Library Exception, version
-3.1, as published by the Free Software Foundation.
-
-You should have received a copy of the GNU General Public License and
-a copy of the GCC Runtime Library Exception along with this program;
-see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
-<http://www.gnu.org/licenses/>. */
-
-/* This implements IEEE 754 decimal floating point arithmetic, but
- does not provide a mechanism for setting the rounding mode, or for
- generating or handling exceptions. Conversions between decimal
- floating point types and other types depend on C library functions.
-
- Contributed by Ben Elliston <bje@au.ibm.com>. */
-
-#include <stdio.h>
-#include <stdlib.h>
-/* FIXME: compile with -std=gnu99 to get these from stdlib.h */
-extern float strtof (const char *, char **);
-extern long double strtold (const char *, char **);
-#include <string.h>
-#include <limits.h>
-
-#include "config/dfp-bit.h"
-
-/* Forward declarations. */
-#if WIDTH == 32 || WIDTH_TO == 32
-void __host_to_ieee_32 (_Decimal32 in, decimal32 *out);
-void __ieee_to_host_32 (decimal32 in, _Decimal32 *out);
-#endif
-#if WIDTH == 64 || WIDTH_TO == 64
-void __host_to_ieee_64 (_Decimal64 in, decimal64 *out);
-void __ieee_to_host_64 (decimal64 in, _Decimal64 *out);
-#endif
-#if WIDTH == 128 || WIDTH_TO == 128
-void __host_to_ieee_128 (_Decimal128 in, decimal128 *out);
-void __ieee_to_host_128 (decimal128 in, _Decimal128 *out);
-#endif
-
-/* A pointer to a binary decFloat operation. */
-typedef decFloat* (*dfp_binary_func)
- (decFloat *, const decFloat *, const decFloat *, decContext *);
-
-/* Binary operations. */
-
-/* Use a decFloat (decDouble or decQuad) function to perform a DFP
- binary operation. */
-static inline decFloat
-dfp_binary_op (dfp_binary_func op, decFloat arg_a, decFloat arg_b)
-{
- decFloat result;
- decContext context;
-
- decContextDefault (&context, CONTEXT_INIT);
- DFP_INIT_ROUNDMODE (context.round);
-
- /* Perform the operation. */
- op (&result, &arg_a, &arg_b, &context);
-
- if (DFP_EXCEPTIONS_ENABLED && context.status != 0)
- {
- /* decNumber exception flags we care about here. */
- int ieee_flags;
- int dec_flags = DEC_IEEE_854_Division_by_zero | DEC_IEEE_854_Inexact
- | DEC_IEEE_854_Invalid_operation | DEC_IEEE_854_Overflow
- | DEC_IEEE_854_Underflow;
- dec_flags &= context.status;
- ieee_flags = DFP_IEEE_FLAGS (dec_flags);
- if (ieee_flags != 0)
- DFP_HANDLE_EXCEPTIONS (ieee_flags);
- }
-
- return result;
-}
-
-#if WIDTH == 32
-/* The decNumber package doesn't provide arithmetic for decSingle (32 bits);
- convert to decDouble, use the operation for that, and convert back. */
-static inline _Decimal32
-d32_binary_op (dfp_binary_func op, _Decimal32 arg_a, _Decimal32 arg_b)
-{
- union { _Decimal32 c; decSingle f; } a32, b32, res32;
- decDouble a, b, res;
- decContext context;
-
- /* Widen the operands and perform the operation. */
- a32.c = arg_a;
- b32.c = arg_b;
- decSingleToWider (&a32.f, &a);
- decSingleToWider (&b32.f, &b);
- res = dfp_binary_op (op, a, b);
-
- /* Narrow the result, which might result in an underflow or overflow. */
- decContextDefault (&context, CONTEXT_INIT);
- DFP_INIT_ROUNDMODE (context.round);
- decSingleFromWider (&res32.f, &res, &context);
- if (DFP_EXCEPTIONS_ENABLED && context.status != 0)
- {
- /* decNumber exception flags we care about here. */
- int ieee_flags;
- int dec_flags = DEC_IEEE_854_Inexact | DEC_IEEE_854_Overflow
- | DEC_IEEE_854_Underflow;
- dec_flags &= context.status;
- ieee_flags = DFP_IEEE_FLAGS (dec_flags);
- if (ieee_flags != 0)
- DFP_HANDLE_EXCEPTIONS (ieee_flags);
- }
-
- return res32.c;
-}
-#else
-/* decFloat operations are supported for decDouble (64 bits) and
- decQuad (128 bits). The bit patterns for the types are the same. */
-static inline DFP_C_TYPE
-dnn_binary_op (dfp_binary_func op, DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
-{
- union { DFP_C_TYPE c; decFloat f; } a, b, result;
-
- a.c = arg_a;
- b.c = arg_b;
- result.f = dfp_binary_op (op, a.f, b.f);
- return result.c;
-}
-#endif
-
-/* Comparison operations. */
-
-/* Use a decFloat (decDouble or decQuad) function to perform a DFP
- comparison. */
-static inline CMPtype
-dfp_compare_op (dfp_binary_func op, decFloat arg_a, decFloat arg_b)
-{
- decContext context;
- decFloat res;
- int result;
-
- decContextDefault (&context, CONTEXT_INIT);
- DFP_INIT_ROUNDMODE (context.round);
-
- /* Perform the comparison. */
- op (&res, &arg_a, &arg_b, &context);
-
- if (DEC_FLOAT_IS_SIGNED (&res))
- result = -1;
- else if (DEC_FLOAT_IS_ZERO (&res))
- result = 0;
- else if (DEC_FLOAT_IS_NAN (&res))
- result = -2;
- else
- result = 1;
-
- return (CMPtype) result;
-}
-
-#if WIDTH == 32
-/* The decNumber package doesn't provide comparisons for decSingle (32 bits);
- convert to decDouble, use the operation for that, and convert back. */
-static inline CMPtype
-d32_compare_op (dfp_binary_func op, _Decimal32 arg_a, _Decimal32 arg_b)
-{
- union { _Decimal32 c; decSingle f; } a32, b32;
- decDouble a, b;
-
- a32.c = arg_a;
- b32.c = arg_b;
- decSingleToWider (&a32.f, &a);
- decSingleToWider (&b32.f, &b);
- return dfp_compare_op (op, a, b);
-}
-#else
-/* decFloat comparisons are supported for decDouble (64 bits) and
- decQuad (128 bits). The bit patterns for the types are the same. */
-static inline CMPtype
-dnn_compare_op (dfp_binary_func op, DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
-{
- union { DFP_C_TYPE c; decFloat f; } a, b;
-
- a.c = arg_a;
- b.c = arg_b;
- return dfp_compare_op (op, a.f, b.f);
-}
-#endif
-
-#if defined(L_conv_sd)
-void
-__host_to_ieee_32 (_Decimal32 in, decimal32 *out)
-{
- memcpy (out, &in, 4);
-}
-
-void
-__ieee_to_host_32 (decimal32 in, _Decimal32 *out)
-{
- memcpy (out, &in, 4);
-}
-#endif /* L_conv_sd */
-
-#if defined(L_conv_dd)
-void
-__host_to_ieee_64 (_Decimal64 in, decimal64 *out)
-{
- memcpy (out, &in, 8);
-}
-
-void
-__ieee_to_host_64 (decimal64 in, _Decimal64 *out)
-{
- memcpy (out, &in, 8);
-}
-#endif /* L_conv_dd */
-
-#if defined(L_conv_td)
-void
-__host_to_ieee_128 (_Decimal128 in, decimal128 *out)
-{
- memcpy (out, &in, 16);
-}
-
-void
-__ieee_to_host_128 (decimal128 in, _Decimal128 *out)
-{
- memcpy (out, &in, 16);
-}
-#endif /* L_conv_td */
-
-#if defined(L_addsub_sd) || defined(L_addsub_dd) || defined(L_addsub_td)
-DFP_C_TYPE
-DFP_ADD (DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
-{
- return DFP_BINARY_OP (DEC_FLOAT_ADD, arg_a, arg_b);
-}
-
-DFP_C_TYPE
-DFP_SUB (DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
-{
- return DFP_BINARY_OP (DEC_FLOAT_SUBTRACT, arg_a, arg_b);
-}
-#endif /* L_addsub */
-
-#if defined(L_mul_sd) || defined(L_mul_dd) || defined(L_mul_td)
-DFP_C_TYPE
-DFP_MULTIPLY (DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
-{
- return DFP_BINARY_OP (DEC_FLOAT_MULTIPLY, arg_a, arg_b);
-}
-#endif /* L_mul */
-
-#if defined(L_div_sd) || defined(L_div_dd) || defined(L_div_td)
-DFP_C_TYPE
-DFP_DIVIDE (DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
-{
- return DFP_BINARY_OP (DEC_FLOAT_DIVIDE, arg_a, arg_b);
-}
-#endif /* L_div */
-
-#if defined (L_eq_sd) || defined (L_eq_dd) || defined (L_eq_td)
-CMPtype
-DFP_EQ (DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
-{
- CMPtype stat;
- stat = DFP_COMPARE_OP (DEC_FLOAT_COMPARE, arg_a, arg_b);
- /* For EQ return zero for true, nonzero for false. */
- return stat != 0;
-}
-#endif /* L_eq */
-
-#if defined (L_ne_sd) || defined (L_ne_dd) || defined (L_ne_td)
-CMPtype
-DFP_NE (DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
-{
- int stat;
- stat = DFP_COMPARE_OP (DEC_FLOAT_COMPARE, arg_a, arg_b);
- /* For NE return zero for true, nonzero for false. */
- if (__builtin_expect (stat == -2, 0)) /* An operand is NaN. */
- return 1;
- return stat != 0;
-}
-#endif /* L_ne */
-
-#if defined (L_lt_sd) || defined (L_lt_dd) || defined (L_lt_td)
-CMPtype
-DFP_LT (DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
-{
- int stat;
- stat = DFP_COMPARE_OP (DEC_FLOAT_COMPARE, arg_a, arg_b);
- /* For LT return -1 (<0) for true, 1 for false. */
- return (stat == -1) ? -1 : 1;
-}
-#endif /* L_lt */
-
-#if defined (L_gt_sd) || defined (L_gt_dd) || defined (L_gt_td)
-CMPtype
-DFP_GT (DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
-{
- int stat;
- stat = DFP_COMPARE_OP (DEC_FLOAT_COMPARE, arg_a, arg_b);
- /* For GT return 1 (>0) for true, -1 for false. */
- return (stat == 1) ? 1 : -1;
-}
-#endif
-
-#if defined (L_le_sd) || defined (L_le_dd) || defined (L_le_td)
-CMPtype
-DFP_LE (DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
-{
- int stat;
- stat = DFP_COMPARE_OP (DEC_FLOAT_COMPARE, arg_a, arg_b);
- /* For LE return 0 (<= 0) for true, 1 for false. */
- if (__builtin_expect (stat == -2, 0)) /* An operand is NaN. */
- return 1;
- return stat == 1;
-}
-#endif /* L_le */
-
-#if defined (L_ge_sd) || defined (L_ge_dd) || defined (L_ge_td)
-CMPtype
-DFP_GE (DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
-{
- int stat;
- stat = DFP_COMPARE_OP (DEC_FLOAT_COMPARE, arg_a, arg_b);
- /* For GE return 1 (>=0) for true, -1 for false. */
- if (__builtin_expect (stat == -2, 0)) /* An operand is NaN. */
- return -1;
- return (stat != -1) ? 1 : -1;
-}
-#endif /* L_ge */
-
-#define BUFMAX 128
-
-/* Check for floating point exceptions that are relevant for conversions
- between decimal float values and handle them. */
-static inline void
-dfp_conversion_exceptions (const int status)
-{
- /* decNumber exception flags we care about here. */
- int ieee_flags;
- int dec_flags = DEC_IEEE_854_Inexact | DEC_IEEE_854_Invalid_operation
- | DEC_IEEE_854_Overflow;
- dec_flags &= status;
- ieee_flags = DFP_IEEE_FLAGS (dec_flags);
- if (ieee_flags != 0)
- DFP_HANDLE_EXCEPTIONS (ieee_flags);
-}
-
-#if defined (L_sd_to_dd)
-/* Use decNumber to convert directly from _Decimal32 to _Decimal64. */
-_Decimal64
-DFP_TO_DFP (_Decimal32 f_from)
-{
- union { _Decimal32 c; decSingle f; } from;
- union { _Decimal64 c; decDouble f; } to;
-
- from.c = f_from;
- to.f = *decSingleToWider (&from.f, &to.f);
- return to.c;
-}
-#endif
-
-#if defined (L_sd_to_td)
-/* Use decNumber to convert directly from _Decimal32 to _Decimal128. */
-_Decimal128
-DFP_TO_DFP (_Decimal32 f_from)
-{
- union { _Decimal32 c; decSingle f; } from;
- union { _Decimal128 c; decQuad f; } to;
- decDouble temp;
-
- from.c = f_from;
- temp = *decSingleToWider (&from.f, &temp);
- to.f = *decDoubleToWider (&temp, &to.f);
- return to.c;
-}
-#endif
-
-#if defined (L_dd_to_td)
-/* Use decNumber to convert directly from _Decimal64 to _Decimal128. */
-_Decimal128
-DFP_TO_DFP (_Decimal64 f_from)
-{
- union { _Decimal64 c; decDouble f; } from;
- union { _Decimal128 c; decQuad f; } to;
-
- from.c = f_from;
- to.f = *decDoubleToWider (&from.f, &to.f);
- return to.c;
-}
-#endif
-
-#if defined (L_dd_to_sd)
-/* Use decNumber to convert directly from _Decimal64 to _Decimal32. */
-_Decimal32
-DFP_TO_DFP (_Decimal64 f_from)
-{
- union { _Decimal32 c; decSingle f; } to;
- union { _Decimal64 c; decDouble f; } from;
- decContext context;
-
- decContextDefault (&context, CONTEXT_INIT);
- DFP_INIT_ROUNDMODE (context.round);
- from.c = f_from;
- to.f = *decSingleFromWider (&to.f, &from.f, &context);
- if (DFP_EXCEPTIONS_ENABLED && context.status != 0)
- dfp_conversion_exceptions (context.status);
- return to.c;
-}
-#endif
-
-#if defined (L_td_to_sd)
-/* Use decNumber to convert directly from _Decimal128 to _Decimal32. */
-_Decimal32
-DFP_TO_DFP (_Decimal128 f_from)
-{
- union { _Decimal32 c; decSingle f; } to;
- union { _Decimal128 c; decQuad f; } from;
- decDouble temp;
- decContext context;
-
- decContextDefault (&context, CONTEXT_INIT);
- DFP_INIT_ROUNDMODE (context.round);
- from.c = f_from;
- temp = *decDoubleFromWider (&temp, &from.f, &context);
- to.f = *decSingleFromWider (&to.f, &temp, &context);
- if (DFP_EXCEPTIONS_ENABLED && context.status != 0)
- dfp_conversion_exceptions (context.status);
- return to.c;
-}
-#endif
-
-#if defined (L_td_to_dd)
-/* Use decNumber to convert directly from _Decimal128 to _Decimal64. */
-_Decimal64
-DFP_TO_DFP (_Decimal128 f_from)
-{
- union { _Decimal64 c; decDouble f; } to;
- union { _Decimal128 c; decQuad f; } from;
- decContext context;
-
- decContextDefault (&context, CONTEXT_INIT);
- DFP_INIT_ROUNDMODE (context.round);
- from.c = f_from;
- to.f = *decDoubleFromWider (&to.f, &from.f, &context);
- if (DFP_EXCEPTIONS_ENABLED && context.status != 0)
- dfp_conversion_exceptions (context.status);
- return to.c;
-}
-#endif
-
-#if defined (L_dd_to_si) || defined (L_td_to_si) \
- || defined (L_dd_to_usi) || defined (L_td_to_usi)
-/* Use decNumber to convert directly from decimal float to integer types. */
-INT_TYPE
-DFP_TO_INT (DFP_C_TYPE x)
-{
- union { DFP_C_TYPE c; decFloat f; } u;
- decContext context;
- INT_TYPE i;
-
- decContextDefault (&context, DEC_INIT_DECIMAL128);
- context.round = DEC_ROUND_DOWN;
- u.c = x;
- i = DEC_FLOAT_TO_INT (&u.f, &context, context.round);
- if (DFP_EXCEPTIONS_ENABLED && context.status != 0)
- dfp_conversion_exceptions (context.status);
- return i;
-}
-#endif
-
-#if defined (L_sd_to_si) || (L_sd_to_usi)
-/* Use decNumber to convert directly from decimal float to integer types. */
-INT_TYPE
-DFP_TO_INT (_Decimal32 x)
-{
- union { _Decimal32 c; decSingle f; } u32;
- decDouble f64;
- decContext context;
- INT_TYPE i;
-
- decContextDefault (&context, DEC_INIT_DECIMAL128);
- context.round = DEC_ROUND_DOWN;
- u32.c = x;
- f64 = *decSingleToWider (&u32.f, &f64);
- i = DEC_FLOAT_TO_INT (&f64, &context, context.round);
- if (DFP_EXCEPTIONS_ENABLED && context.status != 0)
- dfp_conversion_exceptions (context.status);
- return i;
-}
-#endif
-
-#if defined (L_sd_to_di) || defined (L_dd_to_di) || defined (L_td_to_di) \
- || defined (L_sd_to_udi) || defined (L_dd_to_udi) || defined (L_td_to_udi)
-/* decNumber doesn't provide support for conversions to 64-bit integer
- types, so do it the hard way. */
-INT_TYPE
-DFP_TO_INT (DFP_C_TYPE x)
-{
- /* decNumber's decimal* types have the same format as C's _Decimal*
- types, but they have different calling conventions. */
-
- /* TODO: Decimal float to integer conversions should raise FE_INVALID
- if the result value does not fit into the result type. */
-
- IEEE_TYPE s;
- char buf[BUFMAX];
- char *pos;
- decNumber qval, n1, n2;
- decContext context;
-
- /* Use a large context to avoid losing precision. */
- decContextDefault (&context, DEC_INIT_DECIMAL128);
- /* Need non-default rounding mode here. */
- context.round = DEC_ROUND_DOWN;
-
- HOST_TO_IEEE (x, &s);
- TO_INTERNAL (&s, &n1);
- /* Rescale if the exponent is less than zero. */
- decNumberToIntegralValue (&n2, &n1, &context);
- /* Get a value to use for the quantize call. */
- decNumberFromString (&qval, "1.", &context);
- /* Force the exponent to zero. */
- decNumberQuantize (&n1, &n2, &qval, &context);
- /* Get a string, which at this point will not include an exponent. */
- decNumberToString (&n1, buf);
- /* Ignore the fractional part. */
- pos = strchr (buf, '.');
- if (pos)
- *pos = 0;
- /* Use a C library function to convert to the integral type. */
- return STR_TO_INT (buf, NULL, 10);
-}
-#endif
-
-#if defined (L_si_to_dd) || defined (L_si_to_td) \
- || defined (L_usi_to_dd) || defined (L_usi_to_td)
-/* Use decNumber to convert directly from integer to decimal float types. */
-DFP_C_TYPE
-INT_TO_DFP (INT_TYPE i)
-{
- union { DFP_C_TYPE c; decFloat f; } u;
-
- u.f = *DEC_FLOAT_FROM_INT (&u.f, i);
- return u.c;
-}
-#endif
-
-#if defined (L_si_to_sd) || defined (L_usi_to_sd)
-_Decimal32
-/* Use decNumber to convert directly from integer to decimal float types. */
-INT_TO_DFP (INT_TYPE i)
-{
- union { _Decimal32 c; decSingle f; } u32;
- decDouble f64;
- decContext context;
-
- decContextDefault (&context, DEC_INIT_DECIMAL128);
- f64 = *DEC_FLOAT_FROM_INT (&f64, i);
- u32.f = *decSingleFromWider (&u32.f, &f64, &context);
- if (DFP_EXCEPTIONS_ENABLED && context.status != 0)
- dfp_conversion_exceptions (context.status);
- return u32.c;
-}
-#endif
-
-#if defined (L_di_to_sd) || defined (L_di_to_dd) || defined (L_di_to_td) \
- || defined (L_udi_to_sd) || defined (L_udi_to_dd) || defined (L_udi_to_td)
-/* decNumber doesn't provide support for conversions from 64-bit integer
- types, so do it the hard way. */
-DFP_C_TYPE
-INT_TO_DFP (INT_TYPE i)
-{
- DFP_C_TYPE f;
- IEEE_TYPE s;
- char buf[BUFMAX];
- decContext context;
-
- decContextDefault (&context, CONTEXT_INIT);
- DFP_INIT_ROUNDMODE (context.round);
-
- /* Use a C library function to get a floating point string. */
- sprintf (buf, INT_FMT ".", CAST_FOR_FMT(i));
- /* Convert from the floating point string to a decimal* type. */
- FROM_STRING (&s, buf, &context);
- IEEE_TO_HOST (s, &f);
-
- if (DFP_EXCEPTIONS_ENABLED && context.status != 0)
- dfp_conversion_exceptions (context.status);
-
- return f;
-}
-#endif
-
-#if defined (L_sd_to_sf) || defined (L_dd_to_sf) || defined (L_td_to_sf) \
- || defined (L_sd_to_df) || defined (L_dd_to_df) || defined (L_td_to_df) \
- || ((defined (L_sd_to_xf) || defined (L_dd_to_xf) || defined (L_td_to_xf)) \
- && LONG_DOUBLE_HAS_XF_MODE) \
- || ((defined (L_sd_to_tf) || defined (L_dd_to_tf) || defined (L_td_to_tf)) \
- && LONG_DOUBLE_HAS_TF_MODE)
-BFP_TYPE
-DFP_TO_BFP (DFP_C_TYPE f)
-{
- IEEE_TYPE s;
- char buf[BUFMAX];
-
- HOST_TO_IEEE (f, &s);
- /* Write the value to a string. */
- TO_STRING (&s, buf);
- /* Read it as the binary floating point type and return that. */
- return STR_TO_BFP (buf, NULL);
-}
-#endif
-
-#if defined (L_sf_to_sd) || defined (L_sf_to_dd) || defined (L_sf_to_td) \
- || defined (L_df_to_sd) || defined (L_df_to_dd) || defined (L_df_to_td) \
- || ((defined (L_xf_to_sd) || defined (L_xf_to_dd) || defined (L_xf_to_td)) \
- && LONG_DOUBLE_HAS_XF_MODE) \
- || ((defined (L_tf_to_sd) || defined (L_tf_to_dd) || defined (L_tf_to_td)) \
- && LONG_DOUBLE_HAS_TF_MODE)
-DFP_C_TYPE
-BFP_TO_DFP (BFP_TYPE x)
-{
- DFP_C_TYPE f;
- IEEE_TYPE s;
- char buf[BUFMAX];
- decContext context;
-
- decContextDefault (&context, CONTEXT_INIT);
- DFP_INIT_ROUNDMODE (context.round);
-
- /* Use a C library function to write the floating point value to a string. */
- sprintf (buf, BFP_FMT, (BFP_VIA_TYPE) x);
-
- /* Convert from the floating point string to a decimal* type. */
- FROM_STRING (&s, buf, &context);
- IEEE_TO_HOST (s, &f);
-
- if (DFP_EXCEPTIONS_ENABLED && context.status != 0)
- {
- /* decNumber exception flags we care about here. */
- int ieee_flags;
- int dec_flags = DEC_IEEE_854_Inexact | DEC_IEEE_854_Invalid_operation
- | DEC_IEEE_854_Overflow | DEC_IEEE_854_Underflow;
- dec_flags &= context.status;
- ieee_flags = DFP_IEEE_FLAGS (dec_flags);
- if (ieee_flags != 0)
- DFP_HANDLE_EXCEPTIONS (ieee_flags);
- }
-
- return f;
-}
-#endif
-
-#if defined (L_unord_sd) || defined (L_unord_dd) || defined (L_unord_td)
-CMPtype
-DFP_UNORD (DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
-{
- decNumber arg1, arg2;
- IEEE_TYPE a, b;
-
- HOST_TO_IEEE (arg_a, &a);
- HOST_TO_IEEE (arg_b, &b);
- TO_INTERNAL (&a, &arg1);
- TO_INTERNAL (&b, &arg2);
- return (decNumberIsNaN (&arg1) || decNumberIsNaN (&arg2));
-}
-#endif /* L_unord_sd || L_unord_dd || L_unord_td */