Minimize printf/scanf size on platforms that don't need C99.
* acconfig.h (_WANT_IO_C99_FORMATS): New macro. * newlib.hin (_WANT_IO_C99_FORMATS): Likewise. * configure.in (newlib-io-c99-formats): New configure option. (_WANT_IO_C99_FORMATS): Define appropriately. * configure.host (*-linux*, cygwin): Default c99-formats to yes. * libc/stdio/vfprintf.c (_VFPRINTF_R) [!_WANT_IO_C99_FORMATS]: Cripple ' flag; hh, z, j, t sizes; a, A, F, C, S specifiers. * libc/stdio/vfscanf.c (_VFSCANF_R) [!_WANT_IO_C99_FORMATS]: Likewise. * configure: Regenerate.
This commit is contained in:
Eric Blake
parent
b8a37af936
commit
0962fe9178
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@ -1,5 +1,17 @@
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2007-05-11 Eric Blake <ebb9@byu.net>
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Minimize printf/scanf size on platforms that don't need C99.
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* acconfig.h (_WANT_IO_C99_FORMATS): New macro.
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* newlib.hin (_WANT_IO_C99_FORMATS): Likewise.
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* configure.in (newlib-io-c99-formats): New configure option.
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(_WANT_IO_C99_FORMATS): Define appropriately.
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* configure.host (*-linux*, cygwin): Default c99-formats to yes.
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* libc/stdio/vfprintf.c (_VFPRINTF_R) [!_WANT_IO_C99_FORMATS]:
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Cripple ' flag; hh, z, j, t sizes; a, A, F, C, S specifiers.
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* libc/stdio/vfscanf.c (_VFSCANF_R) [!_WANT_IO_C99_FORMATS]:
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Likewise.
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* configure: Regenerate.
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* libc/stdio/vfprintf.c (_VFPRINTF_R, cvt, exponent, chclass)
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(get_arg): Support '%a' and '%A'.
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@ -9,6 +9,10 @@
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/* Newlib version */
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#undef _NEWLIB_VERSION
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/* C99 formats support (such as %a, %zu, ...) in IO functions like
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* printf/scanf enabled */
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#undef _WANT_IO_C99_FORMATS
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/* long long type support in IO functions like printf/scanf enabled */
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#undef _WANT_IO_LONG_LONG
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@ -154,4 +158,3 @@
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#undef _ICONV_FROM_ENCODING_WIN_1258
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#endif /* !__NEWLIB_H__ */
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@ -823,6 +823,7 @@ Optional Features:
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--disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
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--enable-FEATURE[=ARG] include FEATURE [ARG=yes]
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--enable-newlib-io-pos-args enable printf-family positional arg support
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--enable-newlib-io-c99-formats enable C99 support in IO functions like printf/scanf
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--enable-newlib-io-long-long enable long long type support in IO functions like printf/scanf
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--enable-newlib-io-long-double enable long double type support in IO functions printf/scanf
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--enable-newlib-mb enable multibyte support
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@ -1357,6 +1358,19 @@ echo "$as_me: error: bad value ${enableval} for newlib-io-pos-args option" >&2;}
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else
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newlib_io_pos_args=
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fi;
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# Check whether --enable-newlib-io-c99-formats or --disable-newlib-io-c99-formats was given.
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if test "${enable_newlib_io_c99_formats+set}" = set; then
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enableval="$enable_newlib_io_c99_formats"
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case "${enableval}" in
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yes) newlib_io_c99_formats=yes;;
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no) newlib_io_c99_formats=no ;;
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*) { { echo "$as_me:$LINENO: error: bad value ${enableval} for newlib-io-c99-formats option" >&5
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echo "$as_me: error: bad value ${enableval} for newlib-io-c99-formats option" >&2;}
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{ (exit 1); exit 1; }; } ;;
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esac
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else
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newlib_io_c99_formats=
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fi;
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# Check whether --enable-newlib-io-long-long or --disable-newlib-io-long-long was given.
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if test "${enable_newlib_io_long_long+set}" = set; then
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enableval="$enable_newlib_io_long_long"
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@ -4778,7 +4792,7 @@ test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic"
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case $host in
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*-*-irix6*)
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# Find out which ABI we are using.
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echo '#line 4781 "configure"' > conftest.$ac_ext
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echo '#line 4795 "configure"' > conftest.$ac_ext
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if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
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(eval $ac_compile) 2>&5
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ac_status=$?
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@ -5197,6 +5211,13 @@ _ACEOF
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fi
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if test "${newlib_io_c99_formats}" = "yes"; then
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cat >>confdefs.h <<_ACEOF
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#define _WANT_IO_C99_FORMATS 1
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_ACEOF
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fi
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if test "${newlib_io_long_long}" = "yes"; then
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cat >>confdefs.h <<_ACEOF
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#define _WANT_IO_LONG_LONG 1
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@ -24,6 +24,7 @@
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# target_optspace --enable-target-optspace ("yes", "no", "")
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# newlib_multithread --enable-newlib-multithread ("yes", "no", "yes")
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# newlib_elix_level --enable-newlib-elix-level ("1","2","3","4") ("4")
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# newlib_io_c99_formats --enable-newlib-io-c99-formats ("yes", "no", "")
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# newlib_io_long_long --enable-newlib-io-long-long ("yes", "no", "")
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# newlib_io_long_double --enable-newlib-io-long-double ("yes", "no", "")
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@ -62,6 +63,7 @@ crt1_dir=
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have_crt0=
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use_libtool=no
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have_sys_mach_dir=no
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default_newlib_io_c99_formats=no
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default_newlib_io_long_long=no
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default_newlib_io_long_double=no
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default_newlib_io_pos_args=no
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@ -398,6 +400,7 @@ case "${host}" in
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crt1=crt1.o
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crt1_dir=libc/sys/${sys_dir}
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gcc_dir=`gcc -print-search-dirs | awk '/^install:/{print $2}'`
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default_newlib_io_c99_formats="yes"
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default_newlib_io_long_double="yes"
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default_newlib_io_long_long="yes"
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default_newlib_io_pos_args="yes"
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@ -498,6 +501,7 @@ case "${host}" in
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*-*-cygwin*)
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test -z "$cygwin_srcdir" && cygwin_srcdir=`cd ${srcdir}/../winsup/cygwin; pwd`
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export cygwin_srcdir
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default_newlib_io_c99_formats="yes"
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default_newlib_io_long_long="yes"
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default_newlib_io_long_double="yes"
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default_newlib_io_pos_args="yes"
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@ -744,6 +748,13 @@ esac
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# Use defaults for certain settings if not specified by user
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# Enable C99 format support in I/O routines if requested.
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if [ "x${newlib_io_c99_formats}" = "x" ]; then
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if [ ${default_newlib_io_c99_formats} = "yes" ]; then
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newlib_io_c99_formats="yes";
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fi
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fi
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# Enable long long support in I/O routines if requested.
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if [ "x${newlib_io_long_long}" = "x" ]; then
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if [ ${default_newlib_io_long_long} = "yes" ]; then
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@ -20,6 +20,15 @@ AC_ARG_ENABLE(newlib-io-pos-args,
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-io-pos-args option) ;;
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esac], [newlib_io_pos_args=])dnl
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dnl Support --enable-newlib-io-c99-formats
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AC_ARG_ENABLE(newlib-io-c99-formats,
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[ --enable-newlib-io-c99-formats enable C99 support in IO functions like printf/scanf],
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[case "${enableval}" in
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yes) newlib_io_c99_formats=yes;;
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no) newlib_io_c99_formats=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-io-c99-formats option) ;;
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esac], [newlib_io_c99_formats=])dnl
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dnl Support --enable-newlib-io-long-long
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AC_ARG_ENABLE(newlib-io-long-long,
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[ --enable-newlib-io-long-long enable long long type support in IO functions like printf/scanf],
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@ -229,6 +238,10 @@ if test "${newlib_elix_level}" -gt "0"; then
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AC_DEFINE_UNQUOTED(_ELIX_LEVEL,${newlib_elix_level})
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fi
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if test "${newlib_io_c99_formats}" = "yes"; then
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AC_DEFINE_UNQUOTED(_WANT_IO_C99_FORMATS)
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fi
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if test "${newlib_io_long_long}" = "yes"; then
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AC_DEFINE_UNQUOTED(_WANT_IO_LONG_LONG)
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fi
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@ -319,16 +319,20 @@ _EXFUN(get_arg, (struct _reent *data, int n, char *fmt,
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#define LONGDBL 0x008 /* long double */
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#define LONGINT 0x010 /* long integer */
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#ifndef _NO_LONGLONG
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#define QUADINT 0x020 /* quad integer */
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# define QUADINT 0x020 /* quad integer */
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#else /* ifdef _NO_LONGLONG, make QUADINT equivalent to LONGINT, so
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that %lld behaves the same as %ld, not as %d, as expected if:
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sizeof (long long) = sizeof long > sizeof int */
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#define QUADINT LONGINT
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# define QUADINT LONGINT
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#endif
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#define SHORTINT 0x040 /* short integer */
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#define ZEROPAD 0x080 /* zero (as opposed to blank) pad */
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#define FPT 0x100 /* Floating point number */
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#define CHARINT 0x200 /* char as integer */
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#ifdef _WANT_IO_C99_FORMATS
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# define CHARINT 0x200 /* char as integer */
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#else /* define as 0, to make SARG and UARG occupy fewer instructions */
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# define CHARINT 0
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#endif
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int _EXFUN(_VFPRINTF_R, (struct _reent *, FILE *, _CONST char *, va_list));
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@ -565,12 +569,15 @@ _DEFUN(_VFPRINTF_R, (data, fp, fmt0, ap),
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rflag: ch = *fmt++;
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reswitch: switch (ch) {
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#ifdef _WANT_IO_C99_FORMATS
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case '\'':
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/* In the C locale, LC_NUMERIC requires
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/* The ' flag is required by POSIX, but not C99.
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In the C locale, LC_NUMERIC requires
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thousands_sep to be the empty string. And since
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no other locales are supported (yet), this flag
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is currently a no-op. */
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goto rflag;
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#endif
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case ' ':
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/*
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* ``If the space and + flags both appear, the space
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@ -714,24 +721,27 @@ reswitch: switch (ch) {
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goto rflag;
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#endif
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case 'h':
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#ifdef _WANT_IO_C99_FORMATS
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if (*fmt == 'h') {
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fmt++;
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flags |= CHARINT;
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} else {
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} else
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#endif
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flags |= SHORTINT;
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}
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goto rflag;
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case 'l':
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#if defined _WANT_IO_C99_FORMATS || !defined _NO_LONGLONG
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if (*fmt == 'l') {
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fmt++;
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flags |= QUADINT;
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} else {
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} else
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#endif
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flags |= LONGINT;
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}
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goto rflag;
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case 'q':
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case 'q': /* extension */
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flags |= QUADINT;
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goto rflag;
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#ifdef _WANT_IO_C99_FORMATS
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case 'j':
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if (sizeof (intmax_t) == sizeof (long))
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flags |= LONGINT;
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@ -769,8 +779,9 @@ reswitch: switch (ch) {
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have ptrdiff_t as wide as long long. */
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flags |= QUADINT;
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goto rflag;
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case 'c':
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case 'C':
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#endif /* _WANT_IO_C99_FORMATS */
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case 'c':
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cp = buf;
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#ifdef _MB_CAPABLE
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if (ch == 'C' || (flags & LONGINT)) {
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@ -792,7 +803,7 @@ reswitch: switch (ch) {
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}
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sign = '\0';
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break;
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case 'D':
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case 'D': /* extension */
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flags |= LONGINT;
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/*FALLTHROUGH*/
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case 'd':
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@ -811,12 +822,14 @@ reswitch: switch (ch) {
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base = DEC;
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goto number;
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#ifdef FLOATING_POINT
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# ifdef _WANT_IO_C99_FORMATS
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case 'a':
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case 'A':
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case 'F':
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# endif
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case 'e':
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case 'E':
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case 'f':
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case 'F':
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case 'g':
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case 'G':
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# ifdef _NO_LONGDBL
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@ -835,7 +848,7 @@ reswitch: switch (ch) {
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if (isinf (_fpvalue)) {
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if (_fpvalue < 0)
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sign = '-';
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if (ch <= 'G') /* 'E', 'F', or 'G' */
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if (ch <= 'G') /* 'A', 'E', 'F', or 'G' */
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cp = "INF";
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else
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cp = "inf";
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|
|
@ -844,7 +857,7 @@ reswitch: switch (ch) {
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break;
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}
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if (isnan (_fpvalue)) {
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if (ch <= 'G') /* 'E', 'F', or 'G' */
|
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if (ch <= 'G') /* 'A', 'E', 'F', or 'G' */
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cp = "NAN";
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else
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cp = "nan";
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|
@ -866,7 +879,7 @@ reswitch: switch (ch) {
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if (tmp == 2) {
|
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if (_fpvalue < 0)
|
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sign = '-';
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if (ch <= 'G') /* 'E', 'F', or 'G' */
|
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if (ch <= 'G') /* 'A', 'E', 'F', or 'G' */
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cp = "INF";
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else
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cp = "inf";
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|
|
@ -875,7 +888,7 @@ reswitch: switch (ch) {
|
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break;
|
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}
|
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if (tmp == 1) {
|
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if (ch <= 'G') /* 'E', 'F', or 'G' */
|
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if (ch <= 'G') /* 'A', 'E', 'F', or 'G' */
|
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cp = "NAN";
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||||
else
|
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cp = "nan";
|
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|
|
@ -885,6 +898,7 @@ reswitch: switch (ch) {
|
|||
}
|
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# endif /* !_NO_LONGDBL */
|
||||
|
||||
# ifdef _WANT_IO_C99_FORMATS
|
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if (ch == 'a' || ch == 'A') {
|
||||
ox[0] = '0';
|
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ox[1] = ch == 'a' ? 'x' : 'X';
|
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|
|
@ -902,7 +916,9 @@ reswitch: switch (ch) {
|
|||
}
|
||||
else
|
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cp = buf;
|
||||
} else if (prec == -1) {
|
||||
} else
|
||||
# endif /* _WANT_IO_C99_FORMATS */
|
||||
if (prec == -1) {
|
||||
prec = DEFPREC;
|
||||
} else if ((ch == 'g' || ch == 'G') && prec == 0) {
|
||||
prec = 1;
|
||||
|
|
@ -919,8 +935,10 @@ reswitch: switch (ch) {
|
|||
else
|
||||
ch = 'g';
|
||||
}
|
||||
# ifdef _WANT_IO_C99_FORMATS
|
||||
else if (ch == 'F')
|
||||
ch = 'f';
|
||||
# endif
|
||||
if (ch <= 'e') { /* 'a', 'A', 'e', or 'E' fmt */
|
||||
--expt;
|
||||
expsize = exponent (expstr, expt, ch);
|
||||
|
|
@ -958,12 +976,14 @@ reswitch: switch (ch) {
|
|||
*GET_ARG (N, ap, long_ptr_t) = ret;
|
||||
else if (flags & SHORTINT)
|
||||
*GET_ARG (N, ap, short_ptr_t) = ret;
|
||||
#ifdef _WANT_IO_C99_FORMATS
|
||||
else if (flags & CHARINT)
|
||||
*GET_ARG (N, ap, char_ptr_t) = ret;
|
||||
#endif
|
||||
else
|
||||
*GET_ARG (N, ap, int_ptr_t) = ret;
|
||||
continue; /* no output */
|
||||
case 'O':
|
||||
case 'O': /* extension */
|
||||
flags |= LONGINT;
|
||||
/*FALLTHROUGH*/
|
||||
case 'o':
|
||||
|
|
@ -986,7 +1006,9 @@ reswitch: switch (ch) {
|
|||
ch = 'x';
|
||||
goto nosign;
|
||||
case 's':
|
||||
#ifdef _WANT_IO_C99_FORMATS
|
||||
case 'S':
|
||||
#endif
|
||||
sign = '\0';
|
||||
if ((cp = GET_ARG (N, ap, char_ptr_t)) == NULL) {
|
||||
cp = "(null)";
|
||||
|
|
@ -1068,7 +1090,7 @@ reswitch: switch (ch) {
|
|||
size = strlen (cp);
|
||||
|
||||
break;
|
||||
case 'U':
|
||||
case 'U': /* extension */
|
||||
flags |= LONGINT;
|
||||
/*FALLTHROUGH*/
|
||||
case 'u':
|
||||
|
|
@ -1357,6 +1379,7 @@ _DEFUN(cvt, (data, value, ndigits, flags, sign, decpt, ch, length, buf),
|
|||
*sign = '\000';
|
||||
# endif /* !_NO_LONGDBL */
|
||||
|
||||
# ifdef _WANT_IO_C99_FORMATS
|
||||
if (ch == 'a' || ch == 'A') {
|
||||
/* This code assumes FLT_RADIX is a power of 2. The initial
|
||||
division ensures the digit before the decimal will be less
|
||||
|
|
@ -1387,7 +1410,9 @@ _DEFUN(cvt, (data, value, ndigits, flags, sign, decpt, ch, length, buf),
|
|||
}
|
||||
*length = bp - buf;
|
||||
return buf;
|
||||
} else if (ch == 'f' || ch == 'F') {
|
||||
}
|
||||
# endif /* _WANT_IO_C99_FORMATS */
|
||||
if (ch == 'f' || ch == 'F') {
|
||||
mode = 3; /* ndigits after the decimal point */
|
||||
} else {
|
||||
/* To obtain ndigits after the decimal point for the 'e'
|
||||
|
|
@ -1426,7 +1451,11 @@ _DEFUN(exponent, (p0, exp, fmtch),
|
|||
{
|
||||
register char *p, *t;
|
||||
char expbuf[10];
|
||||
# ifdef _WANT_IO_C99_FORMATS
|
||||
int isa = fmtch == 'a' || fmtch == 'A';
|
||||
# else
|
||||
# define isa 0
|
||||
# endif
|
||||
|
||||
p = p0;
|
||||
*p++ = isa ? 'p' - 'a' + fmtch : fmtch;
|
||||
|
|
@ -1616,25 +1645,25 @@ _DEFUN(get_arg, (data, n, fmt, ap, numargs_p, args, arg_type, last_fmt),
|
|||
int max_pos_arg = n;
|
||||
/* Only need types that can be reached via vararg promotions. */
|
||||
enum types { INT, LONG_INT, QUAD_INT, CHAR_PTR, DOUBLE, LONG_DOUBLE, WIDE_CHAR };
|
||||
#ifdef _MB_CAPABLE
|
||||
# ifdef _MB_CAPABLE
|
||||
wchar_t wc;
|
||||
mbstate_t wc_state;
|
||||
int nbytes;
|
||||
#endif
|
||||
# endif
|
||||
|
||||
/* if this isn't the first call, pick up where we left off last time */
|
||||
if (*last_fmt != NULL)
|
||||
fmt = *last_fmt;
|
||||
|
||||
#ifdef _MB_CAPABLE
|
||||
# ifdef _MB_CAPABLE
|
||||
memset (&wc_state, '\0', sizeof (wc_state));
|
||||
#endif
|
||||
# endif
|
||||
|
||||
/* we need to process either to end of fmt string or until we have actually
|
||||
read the desired parameter from the vararg list. */
|
||||
while (*fmt && n >= numargs)
|
||||
{
|
||||
#ifdef _MB_CAPABLE
|
||||
# ifdef _MB_CAPABLE
|
||||
while ((nbytes = _mbtowc_r (data, &wc, fmt, MB_CUR_MAX, &wc_state)) > 0)
|
||||
{
|
||||
fmt += nbytes;
|
||||
|
|
@ -1644,13 +1673,13 @@ _DEFUN(get_arg, (data, n, fmt, ap, numargs_p, args, arg_type, last_fmt),
|
|||
|
||||
if (nbytes <= 0)
|
||||
break;
|
||||
#else
|
||||
# else
|
||||
while (*fmt != '\0' && *fmt != '%')
|
||||
fmt += 1;
|
||||
|
||||
if (*fmt == '\0')
|
||||
break;
|
||||
#endif
|
||||
# endif /* ! _MB_CAPABLE */
|
||||
state = START;
|
||||
flags = 0;
|
||||
pos = -1;
|
||||
|
|
@ -1682,6 +1711,7 @@ _DEFUN(get_arg, (data, n, fmt, ap, numargs_p, args, arg_type, last_fmt),
|
|||
case 'q':
|
||||
flags |= QUADINT;
|
||||
break;
|
||||
# ifdef _WANT_IO_C99_FORMATS
|
||||
case 'j':
|
||||
if (sizeof (intmax_t) == sizeof (long))
|
||||
flags |= LONGINT;
|
||||
|
|
@ -1712,14 +1742,17 @@ _DEFUN(get_arg, (data, n, fmt, ap, numargs_p, args, arg_type, last_fmt),
|
|||
have ptrdiff_t as wide as long long. */
|
||||
flags |= QUADINT;
|
||||
break;
|
||||
# endif /* _WANT_IO_C99_FORMATS */
|
||||
case 'l':
|
||||
default:
|
||||
# if defined _WANT_IO_C99_FORMATS || !defined _NO_LONGLONG
|
||||
if (*fmt == 'l')
|
||||
{
|
||||
flags |= QUADINT;
|
||||
++fmt;
|
||||
}
|
||||
else
|
||||
# endif
|
||||
flags |= LONGINT;
|
||||
break;
|
||||
}
|
||||
|
|
@ -1738,10 +1771,10 @@ _DEFUN(get_arg, (data, n, fmt, ap, numargs_p, args, arg_type, last_fmt),
|
|||
case 'u':
|
||||
if (flags & LONGINT)
|
||||
spec_type = LONG_INT;
|
||||
#ifndef _NO_LONGLONG
|
||||
# ifndef _NO_LONGLONG
|
||||
else if (flags & QUADINT)
|
||||
spec_type = QUAD_INT;
|
||||
#endif
|
||||
# endif
|
||||
else
|
||||
spec_type = INT;
|
||||
break;
|
||||
|
|
@ -1750,36 +1783,44 @@ _DEFUN(get_arg, (data, n, fmt, ap, numargs_p, args, arg_type, last_fmt),
|
|||
case 'O':
|
||||
spec_type = LONG_INT;
|
||||
break;
|
||||
# ifdef _WANT_IO_C99_FORMATS
|
||||
case 'a':
|
||||
case 'A':
|
||||
case 'f':
|
||||
case 'F':
|
||||
# endif
|
||||
case 'f':
|
||||
case 'g':
|
||||
case 'G':
|
||||
case 'E':
|
||||
case 'e':
|
||||
#ifndef _NO_LONGDBL
|
||||
# ifndef _NO_LONGDBL
|
||||
if (flags & LONGDBL)
|
||||
spec_type = LONG_DOUBLE;
|
||||
else
|
||||
#endif
|
||||
# endif
|
||||
spec_type = DOUBLE;
|
||||
break;
|
||||
case 's':
|
||||
# ifdef _WANT_IO_C99_FORMATS
|
||||
case 'S':
|
||||
# endif
|
||||
case 'p':
|
||||
case 'n':
|
||||
spec_type = CHAR_PTR;
|
||||
break;
|
||||
case 'c':
|
||||
# ifdef _WANT_IO_C99_FORMATS
|
||||
if (flags & LONGINT)
|
||||
spec_type = WIDE_CHAR;
|
||||
else
|
||||
# endif
|
||||
spec_type = INT;
|
||||
break;
|
||||
# ifdef _WANT_IO_C99_FORMATS
|
||||
case 'C':
|
||||
spec_type = WIDE_CHAR;
|
||||
break;
|
||||
# endif
|
||||
}
|
||||
|
||||
/* if we have a positional parameter, just store the type, otherwise
|
||||
|
|
|
|||
|
|
@ -361,26 +361,31 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap),
|
|||
flags |= SUPPRESS;
|
||||
goto again;
|
||||
case 'l':
|
||||
#if defined _WANT_IO_C99_FORMATS || !defined _NO_LONGLONG
|
||||
if (*fmt == 'l') /* Check for 'll' = long long (SUSv3) */
|
||||
{
|
||||
++fmt;
|
||||
flags |= LONGDBL;
|
||||
}
|
||||
else
|
||||
#endif
|
||||
flags |= LONG;
|
||||
goto again;
|
||||
case 'L':
|
||||
flags |= LONGDBL;
|
||||
goto again;
|
||||
case 'h':
|
||||
#ifdef _WANT_IO_C99_FORMATS
|
||||
if (*fmt == 'h') /* Check for 'hh' = char int (SUSv3) */
|
||||
{
|
||||
++fmt;
|
||||
flags |= CHAR;
|
||||
}
|
||||
else
|
||||
#endif
|
||||
flags |= SHORT;
|
||||
goto again;
|
||||
#ifdef _WANT_IO_C99_FORMATS
|
||||
case 'j': /* intmax_t */
|
||||
if (sizeof (intmax_t) == sizeof (long))
|
||||
flags |= LONG;
|
||||
|
|
@ -418,6 +423,7 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap),
|
|||
have size_t as wide as long long. */
|
||||
flags |= LONGDBL;
|
||||
goto again;
|
||||
#endif /* _WANT_IO_C99_FORMATS */
|
||||
|
||||
case '0':
|
||||
case '1':
|
||||
|
|
@ -470,7 +476,7 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap),
|
|||
base = 10;
|
||||
break;
|
||||
|
||||
case 'X': /* compat XXX */
|
||||
case 'X':
|
||||
case 'x':
|
||||
flags |= PFXOK; /* enable 0x prefixing */
|
||||
c = CT_INT;
|
||||
|
|
@ -479,19 +485,25 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap),
|
|||
break;
|
||||
|
||||
#ifdef FLOATING_POINT
|
||||
case 'E': /* compat XXX */
|
||||
case 'G': /* compat XXX */
|
||||
/* ANSI says that E,G and X behave the same way as e,g,x */
|
||||
/* FALLTHROUGH */
|
||||
# ifdef _WANT_IO_C99_FORMATS
|
||||
case 'a':
|
||||
case 'A':
|
||||
case 'F':
|
||||
# endif
|
||||
case 'E':
|
||||
case 'G':
|
||||
case 'e':
|
||||
case 'f':
|
||||
case 'g':
|
||||
c = CT_FLOAT;
|
||||
break;
|
||||
#endif
|
||||
|
||||
#ifdef _WANT_IO_C99_FORMATS
|
||||
case 'S':
|
||||
flags |= LONG;
|
||||
/* FALLTHROUGH */
|
||||
#endif
|
||||
|
||||
case 's':
|
||||
c = CT_STRING;
|
||||
|
|
@ -503,9 +515,11 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap),
|
|||
c = CT_CCL;
|
||||
break;
|
||||
|
||||
#ifdef _WANT_IO_C99_FORMATS
|
||||
case 'C':
|
||||
flags |= LONG;
|
||||
/* FALLTHROUGH */
|
||||
#endif
|
||||
|
||||
case 'c':
|
||||
flags |= NOSKIP;
|
||||
|
|
@ -522,12 +536,15 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap),
|
|||
case 'n':
|
||||
if (flags & SUPPRESS) /* ??? */
|
||||
continue;
|
||||
#ifdef _WANT_IO_C99_FORMATS
|
||||
if (flags & CHAR)
|
||||
{
|
||||
cp = va_arg (ap, char *);
|
||||
*cp = nread;
|
||||
}
|
||||
else if (flags & SHORT)
|
||||
else
|
||||
#endif
|
||||
if (flags & SHORT)
|
||||
{
|
||||
sp = va_arg (ap, short *);
|
||||
*sp = nread;
|
||||
|
|
@ -976,11 +993,13 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap),
|
|||
res = (*ccfn) (rptr, buf, (char **) NULL, base);
|
||||
if (flags & POINTER)
|
||||
*(va_arg (ap, _PTR *)) = (_PTR) (unsigned _POINTER_INT) res;
|
||||
#ifdef _WANT_IO_C99_FORMATS
|
||||
else if (flags & CHAR)
|
||||
{
|
||||
cp = va_arg (ap, char *);
|
||||
*cp = res;
|
||||
}
|
||||
#endif
|
||||
else if (flags & SHORT)
|
||||
{
|
||||
sp = va_arg (ap, short *);
|
||||
|
|
|
|||
|
|
@ -9,6 +9,10 @@
|
|||
/* Newlib version */
|
||||
#undef _NEWLIB_VERSION
|
||||
|
||||
/* C99 formats support (such as %a, %zu, ...) in IO functions like
|
||||
* printf/scanf enabled */
|
||||
#undef _WANT_IO_C99_FORMATS
|
||||
|
||||
/* long long type support in IO functions like printf/scanf enabled */
|
||||
#undef _WANT_IO_LONG_LONG
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue