libio bugs

[Andreas Schwab]

This patch fixes some bugs in libio.

Btw, why does _IO_wchar_t in streambuf.h default to short and not
_G_wchar_t?  And why does ios::fill(_IO_wchar_t) cast its argument to
char?  Unfortunately, changing that now breaks binary compatibility on
Linux.


1998-01-20  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* iostream.cc (istream::operator>>(long double&))
	[!_G_HAVE_LONG_DOUBLE_IO]: Scan value into separate variable, in
	case long double is bigger than double.
	(ostream::operator<<(double)) [_G_HAVE_PRINTF_FP]: Fix order of
	initializers of struct printf_info to match declaration order,
	to work around g++ bug.
	(ostream::operator<<(long double)) [_G_HAVE_PRINTF_FP]: Likewise.

	* gen-params: Add missing quotes.  Avoid useless use of command
	substitution.

*** egcs-980115/libio/gen-params.~1~	Thu Nov 27 00:54:21 1997
--- egcs-980115/libio/gen-params	Tue Dec 23 20:48:12 1997
*************** fi
*** 277,283 ****
  tr '	' ' ' <TMP >dummy.out
  
  for TYPE in dev_t clock_t fpos_t gid_t ino_t mode_t nlink_t off_t pid_t ptrdiff_t sigset_t size_t ssize_t time_t uid_t va_list wchar_t wint_t int16_t uint16_t int32_t uint_32_t u_int16_t u_int32_t; do
!     IMPORTED=`eval 'echo $'"$TYPE"`
      if [ -n "${IMPORTED}" ] ; then
  	eval "$TYPE='$IMPORTED'"
      else
--- 277,283 ----
  tr '	' ' ' <TMP >dummy.out
  
  for TYPE in dev_t clock_t fpos_t gid_t ino_t mode_t nlink_t off_t pid_t ptrdiff_t sigset_t size_t ssize_t time_t uid_t va_list wchar_t wint_t int16_t uint16_t int32_t uint_32_t u_int16_t u_int32_t; do
!     eval IMPORTED=\$$TYPE
      if [ -n "${IMPORTED}" ] ; then
  	eval "$TYPE='$IMPORTED'"
      else
*************** done
*** 318,326 ****
  
  # Look for some standard macros.
  for NAME in BUFSIZ FOPEN_MAX FILENAME_MAX NULL; do
!     IMPORTED=`eval 'echo $'"$NAME"`
      if [ -n "${IMPORTED}" ] ; then
! 	eval "$NAME='$IMPORTED /* specified */"
      else
  	rm -f TMP
  	${SED} -n -e 's| *;|;|g' -e "s|long X${NAME}= *\(.*\);|\1|w TMP" \
--- 318,326 ----
  
  # Look for some standard macros.
  for NAME in BUFSIZ FOPEN_MAX FILENAME_MAX NULL; do
!     eval IMPORTED=\$$NAME
      if [ -n "${IMPORTED}" ] ; then
! 	eval "$NAME='$IMPORTED /* specified */'"
      else
  	rm -f TMP
  	${SED} -n -e 's| *;|;|g' -e "s|long X${NAME}= *\(.*\);|\1|w TMP" \
*************** done
*** 334,342 ****
  
  # These macros must be numerical constants; strip any trailing 'L's.
  for NAME in SHRT_MAX INT_MAX LONG_MAX LONG_LONG_MAX; do
!     IMPORTED=`eval 'echo $'"$NAME"`
      if [ -n "${IMPORTED}" ] ; then
! 	eval "$NAME='$IMPORTED /* specified */"
      else
  	rm -f TMP
  	${SED} -n -e 's| *;|;|g' -e "s|long X${NAME}= *\([0-9]*\)L* *;|\1|w TMP" \
--- 334,342 ----
  
  # These macros must be numerical constants; strip any trailing 'L's.
  for NAME in SHRT_MAX INT_MAX LONG_MAX LONG_LONG_MAX; do
!     eval IMPORTED=\$$NAME
      if [ -n "${IMPORTED}" ] ; then
! 	eval "$NAME='$IMPORTED /* specified */'"
      else
  	rm -f TMP
  	${SED} -n -e 's| *;|;|g' -e "s|long X${NAME}= *\([0-9]*\)L* *;|\1|w TMP" \
*** egcs-980115/libio/iostream.cc.~1~	Fri Oct  3 19:14:02 1997
--- egcs-980115/libio/iostream.cc	Fri Jan 16 20:32:18 1998
*************** READ_INT(bool)
*** 333,343 ****
  istream& istream::operator>>(long double& x)
  {
      if (ipfx0())
  #if _G_HAVE_LONG_DOUBLE_IO
  	scan("%Lg", &x);
  #else
! 	scan("%lg", &x);
  #endif
      return *this;
  }
  
--- 333,347 ----
  istream& istream::operator>>(long double& x)
  {
      if (ipfx0())
+       {
  #if _G_HAVE_LONG_DOUBLE_IO
  	scan("%Lg", &x);
  #else
! 	double y;
! 	scan("%lg", &y);
! 	x = y;
  #endif
+       }
      return *this;
  }
  
*************** ostream& ostream::operator<<(double n)
*** 628,637 ****
  				      left: (flags() & ios::left) != 0,
  				      showsign: (flags() & ios::showpos) != 0,
  				      group: 0,
- 				      pad: fill()
  #if defined __GLIBC__ && __GLIBC__ >= 2
! 				      , extra: 0
  #endif
  	  };
  	  const void *ptr = (const void *) &n;
  	  if (__printf_fp (rdbuf(), &info, &ptr) < 0)
--- 632,641 ----
  				      left: (flags() & ios::left) != 0,
  				      showsign: (flags() & ios::showpos) != 0,
  				      group: 0,
  #if defined __GLIBC__ && __GLIBC__ >= 2
! 				      extra: 0,
  #endif
+ 				      pad: fill()
  	  };
  	  const void *ptr = (const void *) &n;
  	  if (__printf_fp (rdbuf(), &info, &ptr) < 0)
*************** ostream& ostream::operator<<(long double
*** 731,740 ****
  				  left: (flags() & ios::left) != 0,
  				  showsign: (flags() & ios::showpos) != 0,
  				  group: 0,
- 				  pad: fill()
  #if defined __GLIBC__ && __GLIBC__ >= 2
! 				  , extra: 0
  #endif
        };
  
        const void *ptr = (const void *) &n;
--- 735,744 ----
  				  left: (flags() & ios::left) != 0,
  				  showsign: (flags() & ios::showpos) != 0,
  				  group: 0,
  #if defined __GLIBC__ && __GLIBC__ >= 2
! 				  extra: 0,
  #endif
+ 				  pad: fill()
        };
  
        const void *ptr = (const void *) &n;