Revert "Remove gmp from AOS"
This reverts commit f37c97684f0910a3f241394549392f00145ab0f7.
We need gmp for SymEngine for symbolicmanipultion in C++
Change-Id: Ia13216d1715cf96944f7b4f422b7a799f921d4a4
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/third_party/gmp/scanf/Makefile.am b/third_party/gmp/scanf/Makefile.am
new file mode 100644
index 0000000..4f0f6c1
--- /dev/null
+++ b/third_party/gmp/scanf/Makefile.am
@@ -0,0 +1,38 @@
+## Process this file with automake to generate Makefile.in
+
+# Copyright 2001, 2002 Free Software Foundation, Inc.
+#
+# This file is part of the GNU MP Library.
+#
+# The GNU MP Library is free software; you can redistribute it and/or modify
+# it under the terms of either:
+#
+# * the GNU Lesser General Public License as published by the Free
+# Software Foundation; either version 3 of the License, or (at your
+# option) any later version.
+#
+# or
+#
+# * the GNU General Public License as published by the Free Software
+# Foundation; either version 2 of the License, or (at your option) any
+# later version.
+#
+# or both in parallel, as here.
+#
+# The GNU MP 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 General Public License
+# for more details.
+#
+# You should have received copies of the GNU General Public License and the
+# GNU Lesser General Public License along with the GNU MP Library. If not,
+# see https://www.gnu.org/licenses/.
+
+
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+ vfscanf.c vscanf.c vsscanf.c
diff --git a/third_party/gmp/scanf/Makefile.in b/third_party/gmp/scanf/Makefile.in
new file mode 100644
index 0000000..8f57055
--- /dev/null
+++ b/third_party/gmp/scanf/Makefile.in
@@ -0,0 +1,642 @@
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+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ if test -z '$(STRIP)'; then \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+ clean-libtool clean-noinstLTLIBRARIES cscopelist-am ctags \
+ ctags-am distclean distclean-compile distclean-generic \
+ distclean-libtool distclean-tags distdir dvi dvi-am html \
+ html-am info info-am install install-am install-data \
+ install-data-am install-dvi install-dvi-am install-exec \
+ install-exec-am install-html install-html-am install-info \
+ install-info-am install-man install-pdf install-pdf-am \
+ install-ps install-ps-am install-strip installcheck \
+ installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-compile \
+ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+ tags tags-am uninstall uninstall-am
+
+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/third_party/gmp/scanf/doscan.c b/third_party/gmp/scanf/doscan.c
new file mode 100644
index 0000000..8d9c1bb
--- /dev/null
+++ b/third_party/gmp/scanf/doscan.c
@@ -0,0 +1,767 @@
+/* __gmp_doscan -- formatted input internals.
+
+ THE FUNCTIONS IN THIS FILE ARE FOR INTERNAL USE ONLY. THEY'RE ALMOST
+ CERTAIN TO BE SUBJECT TO INCOMPATIBLE CHANGES OR DISAPPEAR COMPLETELY IN
+ FUTURE GNU MP RELEASES.
+
+Copyright 2001-2003 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of either:
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at your
+ option) any later version.
+
+or
+
+ * the GNU General Public License as published by the Free Software
+ Foundation; either version 2 of the License, or (at your option) any
+ later version.
+
+or both in parallel, as here.
+
+The GNU MP 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 General Public License
+for more details.
+
+You should have received copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library. If not,
+see https://www.gnu.org/licenses/. */
+
+#define _GNU_SOURCE /* for DECIMAL_POINT in langinfo.h */
+
+#include "config.h" /* needed for the HAVE_, could also move gmp incls */
+
+#include <stdarg.h>
+#include <ctype.h>
+#include <stddef.h> /* for ptrdiff_t */
+#include <stdio.h>
+#include <stdlib.h> /* for strtol */
+#include <string.h>
+
+#if HAVE_LANGINFO_H
+#include <langinfo.h> /* for nl_langinfo */
+#endif
+
+#if HAVE_LOCALE_H
+#include <locale.h> /* for localeconv */
+#endif
+
+#if HAVE_INTTYPES_H
+# include <inttypes.h> /* for intmax_t */
+#else
+# if HAVE_STDINT_H
+# include <stdint.h>
+# endif
+#endif
+
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h> /* for quad_t */
+#endif
+
+#include "gmp-impl.h"
+
+
+/* Change this to "#define TRACE(x) x" for some traces. */
+#define TRACE(x)
+
+
+/* General:
+
+ It's necessary to parse up the format string to recognise the GMP
+ extra types F, Q and Z. Other types and conversions are passed
+ across to the standard sscanf or fscanf via funs->scan, for ease of
+ implementation. This is essential in the case of something like glibc
+ %p where the pointer format isn't actually documented.
+
+ Because funs->scan doesn't get the whole input it can't put the right
+ values in for %n, so that's handled in __gmp_doscan. Neither sscanf
+ nor fscanf directly indicate how many characters were read, so an
+ extra %n is appended to each run for that. For fscanf this merely
+ supports our %n output, but for sscanf it lets funs->step move us
+ along the input string.
+
+ Whitespace and literal matches in the format string, including %%,
+ are handled directly within __gmp_doscan. This is reasonably
+ efficient, and avoids some suspicious behaviour observed in various
+ system libc's. GLIBC 2.2.4 for instance returns 0 on
+
+ sscanf(" ", " x")
+ or
+ sscanf(" ", " x%d",&n)
+
+ whereas we think they should return EOF, since end-of-string is
+ reached when a match of "x" is required.
+
+ For standard % conversions, funs->scan is called once for each
+ conversion. If we had vfscanf and vsscanf and could rely on their
+ fixed text matching behaviour then we could call them with multiple
+ consecutive standard conversions. But plain fscanf and sscanf work
+ fine, and parsing one field at a time shouldn't be too much of a
+ slowdown.
+
+ gmpscan:
+
+ gmpscan reads a gmp type. It's only used from one place, but is a
+ separate subroutine to avoid a big chunk of complicated code in the
+ middle of __gmp_doscan. Within gmpscan a couple of loopbacks make it
+ possible to share code for parsing integers, rationals and floats.
+
+ In gmpscan normally one char of lookahead is maintained, but when width
+ is reached that stops, on the principle that an fgetc/ungetc of a char
+ past where we're told to stop would be undesirable. "chars" is how many
+ characters have been read so far, including the current c. When
+ chars==width and another character is desired then a jump is done to the
+ "convert" stage. c is invalid and mustn't be unget'ed in this case;
+ chars is set to width+1 to indicate that.
+
+ gmpscan normally returns the number of characters read. -1 means an
+ invalid field, -2 means EOF reached before any matching characters
+ were read.
+
+ For hex floats, the mantissa part is passed to mpf_set_str, then the
+ exponent is applied with mpf_mul_exp or mpf_div_2exp. This is easier
+ than teaching mpf_set_str about an exponent factor (ie. 2) differing
+ from the mantissa radix point factor (ie. 16). mpf_mul_exp and
+ mpf_div_2exp will preserve the application requested precision, so
+ nothing in that respect is lost by making this a two-step process.
+
+ Matching and errors:
+
+ C99 7.19.6.2 paras 9 and 10 say an input item is read as the longest
+ string which is a match for the appropriate type, or a prefix of a
+ match. With that done, if it's only a prefix then the result is a
+ matching failure, ie. invalid input.
+
+ This rule seems fairly clear, but doesn't seem to be universally
+ applied in system C libraries. Even GLIBC doesn't seem to get it
+ right, insofar as it seems to accept some apparently invalid forms.
+ Eg. glibc 2.3.1 accepts "0x" for a "%i", where a reading of the
+ standard would suggest a non-empty sequence of digits should be
+ required after an "0x".
+
+ A footnote to 7.19.6.2 para 17 notes how this input item reading can
+ mean inputs acceptable to strtol are not acceptable to fscanf. We
+ think this confirms our reading of "0x" as invalid.
+
+ Clearly gmp_sscanf could backtrack to a longest input which was a
+ valid match for a given item, but this is not done, since C99 says
+ sscanf is identical to fscanf, so we make gmp_sscanf identical to
+ gmp_fscanf.
+
+ Types:
+
+ C99 says "ll" is for long long, and "L" is for long double floats.
+ Unfortunately in GMP 4.1.1 we documented the two as equivalent. This
+ doesn't affect us directly, since both are passed through to plain
+ scanf. It seems wisest not to try to enforce the C99 rule. This is
+ consistent with what we said before, though whether it actually
+ worked was always up to the C library.
+
+ Alternatives:
+
+ Consideration was given to using separate code for gmp_fscanf and
+ gmp_sscanf. The sscanf case could zip across a string doing literal
+ matches or recognising digits in gmpscan, rather than making a
+ function call fun->get per character. The fscanf could use getc
+ rather than fgetc too, which might help those systems where getc is a
+ macro or otherwise inlined. But none of this scanning and converting
+ will be particularly fast, so the two are done together to keep it a
+ little simpler for now.
+
+ Various multibyte string issues are not addressed, for a start C99
+ scanf says the format string is multibyte. Since we pass %c, %s and
+ %[ to the system scanf, they might do multibyte reads already, but
+ it's another matter whether or not that can be used, since our digit
+ and whitespace parsing is only unibyte. The plan is to quietly
+ ignore multibyte locales for now. This is not as bad as it sounds,
+ since GMP is presumably used mostly on numbers, which can be
+ perfectly adequately treated in plain ASCII.
+
+*/
+
+
+struct gmp_doscan_params_t {
+ int base;
+ int ignore;
+ char type;
+ int width;
+};
+
+
+#define GET(c) \
+ do { \
+ ASSERT (chars <= width); \
+ chars++; \
+ if (chars > width) \
+ goto convert; \
+ (c) = (*funs->get) (data); \
+ } while (0)
+
+/* store into "s", extending if necessary */
+#define STORE(c) \
+ do { \
+ ASSERT (s_upto <= s_alloc); \
+ if (s_upto >= s_alloc) \
+ { \
+ size_t s_alloc_new = s_alloc + S_ALLOC_STEP; \
+ s = __GMP_REALLOCATE_FUNC_TYPE (s, s_alloc, s_alloc_new, char); \
+ s_alloc = s_alloc_new; \
+ } \
+ s[s_upto++] = c; \
+ } while (0)
+
+#define S_ALLOC_STEP 512
+
+static int
+gmpscan (const struct gmp_doscan_funs_t *funs, void *data,
+ const struct gmp_doscan_params_t *p, void *dst)
+{
+ int chars, c, base, first, width, seen_point, seen_digit, hexfloat;
+ size_t s_upto, s_alloc, hexexp;
+ char *s;
+ int invalid = 0;
+
+ TRACE (printf ("gmpscan\n"));
+
+ ASSERT (p->type == 'F' || p->type == 'Q' || p->type == 'Z');
+
+ c = (*funs->get) (data);
+ if (c == EOF)
+ return -2;
+
+ chars = 1;
+ first = 1;
+ seen_point = 0;
+ width = (p->width == 0 ? INT_MAX-1 : p->width);
+ base = p->base;
+ s_alloc = S_ALLOC_STEP;
+ s = __GMP_ALLOCATE_FUNC_TYPE (s_alloc, char);
+ s_upto = 0;
+ hexfloat = 0;
+ hexexp = 0;
+
+ another:
+ seen_digit = 0;
+ if (c == '-')
+ {
+ STORE (c);
+ goto get_for_sign;
+ }
+ else if (c == '+')
+ {
+ /* don't store '+', it's not accepted by mpz_set_str etc */
+ get_for_sign:
+ GET (c);
+ }
+
+ if (base == 0)
+ {
+ base = 10; /* decimal if no base indicator */
+ if (c == '0')
+ {
+ seen_digit = 1; /* 0 alone is a valid number */
+ if (p->type != 'F')
+ base = 8; /* leading 0 is octal, for non-floats */
+ STORE (c);
+ GET (c);
+ if (c == 'x' || c == 'X')
+ {
+ base = 16;
+ seen_digit = 0; /* must have digits after an 0x */
+ if (p->type == 'F') /* don't pass 'x' to mpf_set_str_point */
+ hexfloat = 1;
+ else
+ STORE (c);
+ GET (c);
+ }
+ }
+ }
+
+ digits:
+ for (;;)
+ {
+ if (base == 16)
+ {
+ if (! isxdigit (c))
+ break;
+ }
+ else
+ {
+ if (! isdigit (c))
+ break;
+ if (base == 8 && (c == '8' || c == '9'))
+ break;
+ }
+
+ seen_digit = 1;
+ STORE (c);
+ GET (c);
+ }
+
+ if (first)
+ {
+ /* decimal point */
+ if (p->type == 'F' && ! seen_point)
+ {
+ /* For a multi-character decimal point, if the first character is
+ present then all of it must be, otherwise the input is
+ considered invalid. */
+ const char *point = GMP_DECIMAL_POINT;
+ int pc = (unsigned char) *point++;
+ if (c == pc)
+ {
+ for (;;)
+ {
+ STORE (c);
+ GET (c);
+ pc = (unsigned char) *point++;
+ if (pc == '\0')
+ break;
+ if (c != pc)
+ goto set_invalid;
+ }
+ seen_point = 1;
+ goto digits;
+ }
+ }
+
+ /* exponent */
+ if (p->type == 'F')
+ {
+ if (hexfloat && (c == 'p' || c == 'P'))
+ {
+ hexexp = s_upto; /* exponent location */
+ base = 10; /* exponent in decimal */
+ goto exponent;
+ }
+ else if (! hexfloat && (c == 'e' || c == 'E'))
+ {
+ exponent:
+ /* must have at least one digit in the mantissa, just an exponent
+ is not good enough */
+ if (! seen_digit)
+ goto set_invalid;
+
+ do_second:
+ first = 0;
+ STORE (c);
+ GET (c);
+ goto another;
+ }
+ }
+
+ /* denominator */
+ if (p->type == 'Q' && c == '/')
+ {
+ /* must have at least one digit in the numerator */
+ if (! seen_digit)
+ goto set_invalid;
+
+ /* now look for at least one digit in the denominator */
+ seen_digit = 0;
+
+ /* allow the base to be redetermined for "%i" */
+ base = p->base;
+ goto do_second;
+ }
+ }
+
+ convert:
+ if (! seen_digit)
+ {
+ set_invalid:
+ invalid = 1;
+ goto done;
+ }
+
+ if (! p->ignore)
+ {
+ STORE ('\0');
+ TRACE (printf (" convert \"%s\"\n", s));
+
+ /* We ought to have parsed out a valid string above, so just test
+ mpz_set_str etc with an ASSERT. */
+ switch (p->type) {
+ case 'F':
+ {
+ mpf_ptr f = (mpf_ptr) dst;
+ if (hexexp != 0)
+ s[hexexp] = '\0';
+ ASSERT_NOCARRY (mpf_set_str (f, s, hexfloat ? 16 : 10));
+ if (hexexp != 0)
+ {
+ char *dummy;
+ long exp;
+ exp = strtol (s + hexexp + 1, &dummy, 10);
+ if (exp >= 0)
+ mpf_mul_2exp (f, f, (unsigned long) exp);
+ else
+ mpf_div_2exp (f, f, NEG_CAST (unsigned long, exp));
+ }
+ }
+ break;
+ case 'Q':
+ ASSERT_NOCARRY (mpq_set_str ((mpq_ptr) dst, s, p->base));
+ break;
+ case 'Z':
+ ASSERT_NOCARRY (mpz_set_str ((mpz_ptr) dst, s, p->base));
+ break;
+ default:
+ ASSERT (0);
+ /*FALLTHRU*/
+ break;
+ }
+ }
+
+ done:
+ ASSERT (chars <= width+1);
+ if (chars != width+1)
+ {
+ (*funs->unget) (c, data);
+ TRACE (printf (" ungetc %d, to give %d chars\n", c, chars-1));
+ }
+ chars--;
+
+ (*__gmp_free_func) (s, s_alloc);
+
+ if (invalid)
+ {
+ TRACE (printf (" invalid\n"));
+ return -1;
+ }
+
+ TRACE (printf (" return %d chars (cf width %d)\n", chars, width));
+ return chars;
+}
+
+
+/* Read and discard whitespace, if any. Return number of chars skipped.
+ Whitespace skipping never provokes the EOF return from __gmp_doscan, so
+ it's not necessary to watch for EOF from funs->get, */
+static int
+skip_white (const struct gmp_doscan_funs_t *funs, void *data)
+{
+ int c;
+ int ret = 0;
+
+ do
+ {
+ c = (funs->get) (data);
+ ret++;
+ }
+ while (isspace (c));
+
+ (funs->unget) (c, data);
+ ret--;
+
+ TRACE (printf (" skip white %d\n", ret));
+ return ret;
+}
+
+
+int
+__gmp_doscan (const struct gmp_doscan_funs_t *funs, void *data,
+ const char *orig_fmt, va_list orig_ap)
+{
+ struct gmp_doscan_params_t param;
+ va_list ap;
+ char *alloc_fmt;
+ const char *fmt, *this_fmt, *end_fmt;
+ size_t orig_fmt_len, alloc_fmt_size, len;
+ int new_fields, new_chars;
+ char fchar;
+ int fields = 0;
+ int chars = 0;
+
+ TRACE (printf ("__gmp_doscan \"%s\"\n", orig_fmt);
+ if (funs->scan == (gmp_doscan_scan_t) sscanf)
+ printf (" s=\"%s\"\n", * (const char **) data));
+
+ /* Don't modify orig_ap, if va_list is actually an array and hence call by
+ reference. It could be argued that it'd be more efficient to leave
+ callers to make a copy if they care, but doing so here is going to be a
+ very small part of the total work, and we may as well keep applications
+ out of trouble. */
+ va_copy (ap, orig_ap);
+
+ /* Parts of the format string are going to be copied so that a " %n" can
+ be appended. alloc_fmt is some space for that. orig_fmt_len+4 will be
+ needed if fmt consists of a single "%" specifier, but otherwise is an
+ overestimate. We're not going to be very fast here, so use
+ __gmp_allocate_func rather than TMP_ALLOC. */
+ orig_fmt_len = strlen (orig_fmt);
+ alloc_fmt_size = orig_fmt_len + 4;
+ alloc_fmt = __GMP_ALLOCATE_FUNC_TYPE (alloc_fmt_size, char);
+
+ fmt = orig_fmt;
+ end_fmt = orig_fmt + orig_fmt_len;
+
+ for (;;)
+ {
+ next:
+ fchar = *fmt++;
+
+ if (fchar == '\0')
+ break;
+
+ if (isspace (fchar))
+ {
+ chars += skip_white (funs, data);
+ continue;
+ }
+
+ if (fchar != '%')
+ {
+ int c;
+ literal:
+ c = (funs->get) (data);
+ if (c != fchar)
+ {
+ (funs->unget) (c, data);
+ if (c == EOF)
+ {
+ eof_no_match:
+ if (fields == 0)
+ fields = EOF;
+ }
+ goto done;
+ }
+ chars++;
+ continue;
+ }
+
+ param.type = '\0';
+ param.base = 0; /* for e,f,g,i */
+ param.ignore = 0;
+ param.width = 0;
+
+ this_fmt = fmt-1;
+ TRACE (printf (" this_fmt \"%s\"\n", this_fmt));
+
+ for (;;)
+ {
+ ASSERT (fmt <= end_fmt);
+
+ fchar = *fmt++;
+ switch (fchar) {
+
+ case '\0': /* unterminated % sequence */
+ ASSERT (0);
+ goto done;
+
+ case '%': /* literal % */
+ goto literal;
+
+ case '[': /* character range */
+ fchar = *fmt++;
+ if (fchar == '^')
+ fchar = *fmt++;
+ /* ']' allowed as the first char (possibly after '^') */
+ if (fchar == ']')
+ fchar = *fmt++;
+ for (;;)
+ {
+ ASSERT (fmt <= end_fmt);
+ if (fchar == '\0')
+ {
+ /* unterminated % sequence */
+ ASSERT (0);
+ goto done;
+ }
+ if (fchar == ']')
+ break;
+ fchar = *fmt++;
+ }
+ /*FALLTHRU*/
+ case 'c': /* characters */
+ case 's': /* string of non-whitespace */
+ case 'p': /* pointer */
+ libc_type:
+ len = fmt - this_fmt;
+ memcpy (alloc_fmt, this_fmt, len);
+ alloc_fmt[len++] = '%';
+ alloc_fmt[len++] = 'n';
+ alloc_fmt[len] = '\0';
+
+ TRACE (printf (" scan \"%s\"\n", alloc_fmt);
+ if (funs->scan == (gmp_doscan_scan_t) sscanf)
+ printf (" s=\"%s\"\n", * (const char **) data));
+
+ new_chars = -1;
+ if (param.ignore)
+ {
+ new_fields = (*funs->scan) (data, alloc_fmt, &new_chars, NULL);
+ ASSERT (new_fields == 0 || new_fields == EOF);
+ }
+ else
+ {
+ void *arg = va_arg (ap, void *);
+ new_fields = (*funs->scan) (data, alloc_fmt, arg, &new_chars);
+ ASSERT (new_fields==0 || new_fields==1 || new_fields==EOF);
+
+ if (new_fields == 0)
+ goto done; /* invalid input */
+
+ if (new_fields == 1)
+ ASSERT (new_chars != -1);
+ }
+ TRACE (printf (" new_fields %d new_chars %d\n",
+ new_fields, new_chars));
+
+ if (new_fields == -1)
+ goto eof_no_match; /* EOF before anything matched */
+
+ /* Under param.ignore, when new_fields==0 we don't know if
+ it's a successful match or an invalid field. new_chars
+ won't have been assigned if it was an invalid field. */
+ if (new_chars == -1)
+ goto done; /* invalid input */
+
+ chars += new_chars;
+ (*funs->step) (data, new_chars);
+
+ increment_fields:
+ if (! param.ignore)
+ fields++;
+ goto next;
+
+ case 'd': /* decimal */
+ case 'u': /* decimal */
+ param.base = 10;
+ goto numeric;
+
+ case 'e': /* float */
+ case 'E': /* float */
+ case 'f': /* float */
+ case 'g': /* float */
+ case 'G': /* float */
+ case 'i': /* integer with base marker */
+ numeric:
+ if (param.type != 'F' && param.type != 'Q' && param.type != 'Z')
+ goto libc_type;
+
+ chars += skip_white (funs, data);
+
+ new_chars = gmpscan (funs, data, ¶m,
+ param.ignore ? NULL : va_arg (ap, void*));
+ if (new_chars == -2)
+ goto eof_no_match;
+ if (new_chars == -1)
+ goto done;
+
+ ASSERT (new_chars >= 0);
+ chars += new_chars;
+ goto increment_fields;
+
+ case 'a': /* glibc allocate string */
+ case '\'': /* glibc digit groupings */
+ break;
+
+ case 'F': /* mpf_t */
+ case 'j': /* intmax_t */
+ case 'L': /* long long */
+ case 'q': /* quad_t */
+ case 'Q': /* mpq_t */
+ case 't': /* ptrdiff_t */
+ case 'z': /* size_t */
+ case 'Z': /* mpz_t */
+ set_type:
+ param.type = fchar;
+ break;
+
+ case 'h': /* short or char */
+ if (param.type != 'h')
+ goto set_type;
+ param.type = 'H'; /* internal code for "hh" */
+ break;
+
+ goto numeric;
+
+ case 'l': /* long, long long, double or long double */
+ if (param.type != 'l')
+ goto set_type;
+ param.type = 'L'; /* "ll" means "L" */
+ break;
+
+ case 'n':
+ if (! param.ignore)
+ {
+ void *p;
+ p = va_arg (ap, void *);
+ TRACE (printf (" store %%n to %p\n", p));
+ switch (param.type) {
+ case '\0': * (int *) p = chars; break;
+ case 'F': mpf_set_si ((mpf_ptr) p, (long) chars); break;
+ case 'H': * (char *) p = chars; break;
+ case 'h': * (short *) p = chars; break;
+#if HAVE_INTMAX_T
+ case 'j': * (intmax_t *) p = chars; break;
+#else
+ case 'j': ASSERT_FAIL (intmax_t not available); break;
+#endif
+ case 'l': * (long *) p = chars; break;
+#if HAVE_QUAD_T && HAVE_LONG_LONG
+ case 'q':
+ ASSERT_ALWAYS (sizeof (quad_t) == sizeof (long long));
+ /*FALLTHRU*/
+#else
+ case 'q': ASSERT_FAIL (quad_t not available); break;
+#endif
+#if HAVE_LONG_LONG
+ case 'L': * (long long *) p = chars; break;
+#else
+ case 'L': ASSERT_FAIL (long long not available); break;
+#endif
+ case 'Q': mpq_set_si ((mpq_ptr) p, (long) chars, 1L); break;
+#if HAVE_PTRDIFF_T
+ case 't': * (ptrdiff_t *) p = chars; break;
+#else
+ case 't': ASSERT_FAIL (ptrdiff_t not available); break;
+#endif
+ case 'z': * (size_t *) p = chars; break;
+ case 'Z': mpz_set_si ((mpz_ptr) p, (long) chars); break;
+ default: ASSERT (0); break;
+ }
+ }
+ goto next;
+
+ case 'o':
+ param.base = 8;
+ goto numeric;
+
+ case 'x':
+ case 'X':
+ param.base = 16;
+ goto numeric;
+
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ param.width = 0;
+ do {
+ param.width = param.width * 10 + (fchar-'0');
+ fchar = *fmt++;
+ } while (isdigit (fchar));
+ fmt--; /* unget the non-digit */
+ break;
+
+ case '*':
+ param.ignore = 1;
+ break;
+
+ default:
+ /* something invalid in a % sequence */
+ ASSERT (0);
+ goto next;
+ }
+ }
+ }
+
+ done:
+ (*__gmp_free_func) (alloc_fmt, alloc_fmt_size);
+ return fields;
+}
diff --git a/third_party/gmp/scanf/fscanf.c b/third_party/gmp/scanf/fscanf.c
new file mode 100644
index 0000000..ce74aa4
--- /dev/null
+++ b/third_party/gmp/scanf/fscanf.c
@@ -0,0 +1,47 @@
+/* gmp_fscanf -- formatted input from a FILE.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of either:
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at your
+ option) any later version.
+
+or
+
+ * the GNU General Public License as published by the Free Software
+ Foundation; either version 2 of the License, or (at your option) any
+ later version.
+
+or both in parallel, as here.
+
+The GNU MP 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 General Public License
+for more details.
+
+You should have received copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library. If not,
+see https://www.gnu.org/licenses/. */
+
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "gmp-impl.h"
+
+
+int
+gmp_fscanf (FILE *fp, const char *fmt, ...)
+{
+ va_list ap;
+ int ret;
+ va_start (ap, fmt);
+
+ ret = __gmp_doscan (&__gmp_fscanf_funs, fp, fmt, ap);
+ va_end (ap);
+ return ret;
+}
diff --git a/third_party/gmp/scanf/fscanffuns.c b/third_party/gmp/scanf/fscanffuns.c
new file mode 100644
index 0000000..f2d2939
--- /dev/null
+++ b/third_party/gmp/scanf/fscanffuns.c
@@ -0,0 +1,61 @@
+/* __gmp_fscanf_funs -- support for formatted input from a FILE.
+
+ THE FUNCTIONS IN THIS FILE ARE FOR INTERNAL USE ONLY. THEY'RE ALMOST
+ CERTAIN TO BE SUBJECT TO INCOMPATIBLE CHANGES OR DISAPPEAR COMPLETELY IN
+ FUTURE GNU MP RELEASES.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of either:
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at your
+ option) any later version.
+
+or
+
+ * the GNU General Public License as published by the Free Software
+ Foundation; either version 2 of the License, or (at your option) any
+ later version.
+
+or both in parallel, as here.
+
+The GNU MP 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 General Public License
+for more details.
+
+You should have received copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library. If not,
+see https://www.gnu.org/licenses/. */
+
+#include <stdio.h>
+#include "gmp-impl.h"
+
+
+/* SunOS 4 stdio.h doesn't provide prototypes for these */
+#if ! HAVE_DECL_FGETC
+int fgetc (FILE *);
+#endif
+#if ! HAVE_DECL_FSCANF
+int fscanf (FILE *, const char *, ...);
+#endif
+#if ! HAVE_DECL_UNGETC
+int ungetc (int, FILE *);
+#endif
+
+
+static void
+step (FILE *fp, int n)
+{
+}
+
+const struct gmp_doscan_funs_t __gmp_fscanf_funs = {
+ (gmp_doscan_scan_t) fscanf,
+ (gmp_doscan_step_t) step,
+ (gmp_doscan_get_t) fgetc,
+ (gmp_doscan_unget_t) ungetc,
+};
diff --git a/third_party/gmp/scanf/scanf.c b/third_party/gmp/scanf/scanf.c
new file mode 100644
index 0000000..645188c
--- /dev/null
+++ b/third_party/gmp/scanf/scanf.c
@@ -0,0 +1,47 @@
+/* gmp_scanf -- formatted input from stdin.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of either:
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at your
+ option) any later version.
+
+or
+
+ * the GNU General Public License as published by the Free Software
+ Foundation; either version 2 of the License, or (at your option) any
+ later version.
+
+or both in parallel, as here.
+
+The GNU MP 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 General Public License
+for more details.
+
+You should have received copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library. If not,
+see https://www.gnu.org/licenses/. */
+
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "gmp-impl.h"
+
+
+int
+gmp_scanf (const char *fmt, ...)
+{
+ va_list ap;
+ int ret;
+ va_start (ap, fmt);
+
+ ret = __gmp_doscan (&__gmp_fscanf_funs, stdin, fmt, ap);
+ va_end (ap);
+ return ret;
+}
diff --git a/third_party/gmp/scanf/sscanf.c b/third_party/gmp/scanf/sscanf.c
new file mode 100644
index 0000000..4486b83
--- /dev/null
+++ b/third_party/gmp/scanf/sscanf.c
@@ -0,0 +1,52 @@
+/* gmp_sscanf -- formatted input from a string.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of either:
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at your
+ option) any later version.
+
+or
+
+ * the GNU General Public License as published by the Free Software
+ Foundation; either version 2 of the License, or (at your option) any
+ later version.
+
+or both in parallel, as here.
+
+The GNU MP 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 General Public License
+for more details.
+
+You should have received copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library. If not,
+see https://www.gnu.org/licenses/. */
+
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "gmp-impl.h"
+
+
+int
+gmp_sscanf (const char *s, const char *fmt, ...)
+{
+ va_list ap;
+ int ret;
+ va_start (ap, fmt);
+
+#if SSCANF_WRITABLE_INPUT
+ /* let gmp_vsscanf handle the copying */
+ ret = gmp_vsscanf (s, fmt, ap);
+#else
+ ret = __gmp_doscan (&__gmp_sscanf_funs, (void *) &s, fmt, ap);
+#endif
+ va_end (ap);
+ return ret;
+}
diff --git a/third_party/gmp/scanf/sscanffuns.c b/third_party/gmp/scanf/sscanffuns.c
new file mode 100644
index 0000000..3ee6b63
--- /dev/null
+++ b/third_party/gmp/scanf/sscanffuns.c
@@ -0,0 +1,123 @@
+/* __gmp_sscanf_funs -- support for formatted input from a string.
+
+ THE FUNCTIONS IN THIS FILE ARE FOR INTERNAL USE ONLY. THEY'RE ALMOST
+ CERTAIN TO BE SUBJECT TO INCOMPATIBLE CHANGES OR DISAPPEAR COMPLETELY IN
+ FUTURE GNU MP RELEASES.
+
+Copyright 2001-2003, 2009 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of either:
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at your
+ option) any later version.
+
+or
+
+ * the GNU General Public License as published by the Free Software
+ Foundation; either version 2 of the License, or (at your option) any
+ later version.
+
+or both in parallel, as here.
+
+The GNU MP 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 General Public License
+for more details.
+
+You should have received copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library. If not,
+see https://www.gnu.org/licenses/. */
+
+#include <stdio.h>
+#include <stdarg.h>
+#include "gmp-impl.h"
+
+
+#if 0
+static int
+scan (const char **sp, const char *fmt, ...)
+{
+ va_list ap;
+ int ret;
+
+ va_start(ap, fmt);
+ ret = vsscanf(*sp, fmt, ap);
+ va_end(ap);
+
+ return ret;
+}
+#else
+static int
+scan (const char **sp, const char *fmt, ...)
+{
+ va_list ap;
+ void *p1, *p2;
+ int ret;
+
+ va_start (ap, fmt);
+ p1 = va_arg (ap, void *);
+ p2 = va_arg (ap, void *);
+
+ ret = sscanf (*sp, fmt, p1, p2);
+
+ va_end (ap);
+
+ return ret;
+}
+#endif
+
+static void
+step (const char **sp, int n)
+{
+ ASSERT (n >= 0);
+
+ /* shouldn't push us past the end of the string */
+#if WANT_ASSERT
+ {
+ int i;
+ for (i = 0; i < n; i++)
+ ASSERT ((*sp)[i] != '\0');
+ }
+#endif
+
+ (*sp) += n;
+}
+
+static int
+get (const char **sp)
+{
+ const char *s;
+ int c;
+ s = *sp;
+ c = (unsigned char) *s++;
+ if (c == '\0')
+ return EOF;
+ *sp = s;
+ return c;
+}
+
+static void
+unget (int c, const char **sp)
+{
+ const char *s;
+ s = *sp;
+ if (c == EOF)
+ {
+ ASSERT (*s == '\0');
+ return;
+ }
+ s--;
+ ASSERT ((unsigned char) *s == c);
+ *sp = s;
+}
+
+const struct gmp_doscan_funs_t __gmp_sscanf_funs = {
+ (gmp_doscan_scan_t) scan,
+ (gmp_doscan_step_t) step,
+ (gmp_doscan_get_t) get,
+ (gmp_doscan_unget_t) unget,
+};
diff --git a/third_party/gmp/scanf/vfscanf.c b/third_party/gmp/scanf/vfscanf.c
new file mode 100644
index 0000000..98b810a
--- /dev/null
+++ b/third_party/gmp/scanf/vfscanf.c
@@ -0,0 +1,41 @@
+/* gmp_vfscanf -- formatted input from a FILE.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of either:
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at your
+ option) any later version.
+
+or
+
+ * the GNU General Public License as published by the Free Software
+ Foundation; either version 2 of the License, or (at your option) any
+ later version.
+
+or both in parallel, as here.
+
+The GNU MP 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 General Public License
+for more details.
+
+You should have received copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library. If not,
+see https://www.gnu.org/licenses/. */
+
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "gmp-impl.h"
+
+
+int
+gmp_vfscanf (FILE *fp, const char *fmt, va_list ap)
+{
+ return __gmp_doscan (&__gmp_fscanf_funs, fp, fmt, ap);
+}
diff --git a/third_party/gmp/scanf/vscanf.c b/third_party/gmp/scanf/vscanf.c
new file mode 100644
index 0000000..2a8cfc1
--- /dev/null
+++ b/third_party/gmp/scanf/vscanf.c
@@ -0,0 +1,42 @@
+/* gmp_vscanf -- formatted input from stdin.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of either:
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at your
+ option) any later version.
+
+or
+
+ * the GNU General Public License as published by the Free Software
+ Foundation; either version 2 of the License, or (at your option) any
+ later version.
+
+or both in parallel, as here.
+
+The GNU MP 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 General Public License
+for more details.
+
+You should have received copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library. If not,
+see https://www.gnu.org/licenses/. */
+
+#include <stdarg.h>
+
+#include <stdio.h>
+
+#include "gmp-impl.h"
+
+
+int
+gmp_vscanf (const char *fmt, va_list ap)
+{
+ return __gmp_doscan (&__gmp_fscanf_funs, stdin, fmt, ap);
+}
diff --git a/third_party/gmp/scanf/vsscanf.c b/third_party/gmp/scanf/vsscanf.c
new file mode 100644
index 0000000..7c7b98a
--- /dev/null
+++ b/third_party/gmp/scanf/vsscanf.c
@@ -0,0 +1,60 @@
+/* gmp_vsscanf -- formatted input from a string.
+
+Copyright 2001, 2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of either:
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at your
+ option) any later version.
+
+or
+
+ * the GNU General Public License as published by the Free Software
+ Foundation; either version 2 of the License, or (at your option) any
+ later version.
+
+or both in parallel, as here.
+
+The GNU MP 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 General Public License
+for more details.
+
+You should have received copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library. If not,
+see https://www.gnu.org/licenses/. */
+
+#include <stdarg.h>
+
+#include <string.h>
+
+#include "gmp-impl.h"
+
+
+int
+gmp_vsscanf (const char *s, const char *fmt, va_list ap)
+{
+#if SSCANF_WRITABLE_INPUT
+ /* We only actually need this if there's standard C types in fmt, and if
+ "s" is not already writable, but it's too much trouble to check that,
+ and in any case this writable sscanf input business is only for a few
+ old systems. */
+ size_t size;
+ char *alloc;
+ int ret;
+ size = strlen (s) + 1;
+ alloc = __GMP_ALLOCATE_FUNC_TYPE (size, char);
+ memcpy (alloc, s, size);
+ s = alloc;
+ ret = __gmp_doscan (&__gmp_sscanf_funs, (void *) &s, fmt, ap);
+ (*__gmp_free_func) (alloc, size);
+ return ret;
+
+#else
+ return __gmp_doscan (&__gmp_sscanf_funs, (void *) &s, fmt, ap);
+#endif
+}