[glibc/gabriel/powerpc-ieee128-printscan] Refactor *cvt functions implementation (2/5)

[Gabriel F.T.Gomes <gftg at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1f10b8057eb608a0feded160624552772afc85d5

commit 1f10b8057eb608a0feded160624552772afc85d5
Author: Gabriel F. T. Gomes <gabrielftg@linux.ibm.com>
Date:   Thu Jul 11 11:48:12 2019 -0300

    Refactor *cvt functions implementation (2/5)
    
    No changes since v1.
    
    -- 8< --
    This patch is to be squashed with the other n/5 refactoring patches.
    
    This patch only moves and merges the contents of misc/efgcvt-template.c
    and misc/efgcvt_r-template.c into misc/efgcvt-dbl-macros.h.

Diff:
---
 misc/efgcvt-dbl-macros.h | 52 ++++++++++++++++++++++++++++++++++++++++++++++++
 misc/efgcvt-template.c   | 25 -----------------------
 misc/efgcvt_r-template.c | 33 ------------------------------
 3 files changed, 52 insertions(+), 58 deletions(-)

diff --git a/misc/efgcvt-dbl-macros.h b/misc/efgcvt-dbl-macros.h
new file mode 100644
index 0000000..08640e9
--- /dev/null
+++ b/misc/efgcvt-dbl-macros.h
@@ -0,0 +1,52 @@
+/* Macros for the implementation of *cvt functions, double version.
+   Copyright (C) 2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <float.h>
+
+#define FLOAT_TYPE double
+#define FUNC_PREFIX
+#define FLOAT_FMT_FLAG
+#define FLOAT_NAME_EXT
+#define FLOAT_MIN_10_EXP DBL_MIN_10_EXP
+/* Actually we have to write (DBL_DIG + log10 (DBL_MAX_10_EXP)) but we
+   don't have log10 available in the preprocessor.  */
+#define MAXDIG (NDIGIT_MAX + 3)
+#define FCVT_MAXDIG (DBL_MAX_10_EXP + MAXDIG)
+#if DBL_MANT_DIG == 53
+# define NDIGIT_MAX 17
+#elif DBL_MANT_DIG == 24
+# define NDIGIT_MAX 9
+#elif DBL_MANT_DIG == 56
+# define NDIGIT_MAX 18
+#else
+/* See IEEE 854 5.6, table 2 for this formula.  Unfortunately we need a
+   compile time constant here, so we cannot use it.  */
+# error "NDIGIT_MAX must be precomputed"
+# define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * DBL_MANT_DIG + 1.0)))
+#endif
+#if DBL_MIN_10_EXP == -37
+# define FLOAT_MIN_10_NORM	1.0e-37
+#elif DBL_MIN_10_EXP == -307
+# define FLOAT_MIN_10_NORM	1.0e-307
+#elif DBL_MIN_10_EXP == -4931
+# define FLOAT_MIN_10_NORM	1.0e-4931
+#else
+/* libc can't depend on libm.  */
+# error "FLOAT_MIN_10_NORM must be precomputed"
+# define FLOAT_MIN_10_NORM	exp10 (DBL_MIN_10_EXP)
+#endif
diff --git a/misc/efgcvt-template.c b/misc/efgcvt-template.c
index 492e4e8..f8650a9 100644
--- a/misc/efgcvt-template.c
+++ b/misc/efgcvt-template.c
@@ -20,34 +20,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/param.h>
-#include <float.h>
 #include <libc-lock.h>
 #include <math_ldbl_opt.h>
 
-#ifndef FLOAT_TYPE
-# define FLOAT_TYPE double
-# define FUNC_PREFIX
-# define FLOAT_FMT_FLAG
-/* Actually we have to write (DBL_DIG + log10 (DBL_MAX_10_EXP)) but we
-   don't have log10 available in the preprocessor.  */
-# define MAXDIG (NDIGIT_MAX + 3)
-# define FCVT_MAXDIG (DBL_MAX_10_EXP + MAXDIG)
-# if DBL_MANT_DIG == 53
-#  define NDIGIT_MAX 17
-# elif DBL_MANT_DIG == 24
-#  define NDIGIT_MAX 9
-# elif DBL_MANT_DIG == 56
-#  define NDIGIT_MAX 18
-# else
-/* See IEEE 854 5.6, table 2 for this formula.  Unfortunately we need a
-   compile time constant here, so we cannot use it.  */
-#  error "NDIGIT_MAX must be precomputed"
-#  define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * DBL_MANT_DIG + 1.0)))
-# endif
-#else
-# define LONG_DOUBLE_CVT
-#endif
-
 #define APPEND(a, b) APPEND2 (a, b)
 #define APPEND2(a, b) a##b
 #define __APPEND(a, b) __APPEND2 (a, b)
diff --git a/misc/efgcvt_r-template.c b/misc/efgcvt_r-template.c
index 9812498..74baad7 100644
--- a/misc/efgcvt_r-template.c
+++ b/misc/efgcvt_r-template.c
@@ -17,7 +17,6 @@
    <https://www.gnu.org/licenses/>.  */
 
 #include <errno.h>
-#include <float.h>
 #include <stdio.h>
 #include <string.h>
 #include <ctype.h>
@@ -26,38 +25,6 @@
 #include <sys/param.h>
 #include <math_ldbl_opt.h>
 
-#ifndef FLOAT_TYPE
-# define FLOAT_TYPE double
-# define FUNC_PREFIX
-# define FLOAT_FMT_FLAG
-# define FLOAT_NAME_EXT
-# define FLOAT_MIN_10_EXP DBL_MIN_10_EXP
-# if DBL_MANT_DIG == 53
-#  define NDIGIT_MAX 17
-# elif DBL_MANT_DIG == 24
-#  define NDIGIT_MAX 9
-# elif DBL_MANT_DIG == 56
-#  define NDIGIT_MAX 18
-# else
-/* See IEEE 854 5.6, table 2 for this formula.  Unfortunately we need a
-   compile time constant here, so we cannot use it.  */
-#  error "NDIGIT_MAX must be precomputed"
-#  define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * DBL_MANT_DIG + 1.0)))
-# endif
-# if DBL_MIN_10_EXP == -37
-#  define FLOAT_MIN_10_NORM	1.0e-37
-# elif DBL_MIN_10_EXP == -307
-#  define FLOAT_MIN_10_NORM	1.0e-307
-# elif DBL_MIN_10_EXP == -4931
-#  define FLOAT_MIN_10_NORM	1.0e-4931
-# else
-/* libc can't depend on libm.  */
-#  error "FLOAT_MIN_10_NORM must be precomputed"
-#  define FLOAT_MIN_10_NORM	exp10 (DBL_MIN_10_EXP)
-# endif
-#else
-# define LONG_DOUBLE_CVT
-#endif
 
 #define APPEND(a, b) APPEND2 (a, b)
 #define APPEND2(a, b) a##b