From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Schwab To: egcs@cygnus.com Subject: libio patches for glibc 2.1 Date: Mon, 23 Feb 1998 02:16:00 -0000 Message-id: X-SW-Source: 1998-02/msg01053.html This patch fixes some problems in libio in connection with glibc 2.1. Note that the change of _IO_wchar_t is a binary incompatibility, so users of glibc 2.1 snapshots need to recompile at least all code that uses [io]fstream. 1998-02-22 Andreas Schwab Changes for _G_IO_IO_FILE_VERSION == 0x20001: * libioP.h (_IO_showmanyc_t, _IO_SHOWMANYC, _IO_imbue_t, _IO_IMBUE): New definitions. (struct _IO_jump_t): Add __showmanyc and __imbue fields. (_IO_file_fopen): Add new fourth argument. * filebuf.cc (filebuf::open): Pass new fourth argument to _IO_file_fopen. * iolibio.h (_IO_freopen): Likewise. * streambuf.cc (streambuf::showmanyc, streambuf::imbue): New functions. * streambuf.h (_IO_wchar_t): Define to _G_wchar_t. (ios::fill): Remove casts. (struct streambuf): Add showmanyc and imbue members. * iostream.cc (ostream::operator<<(double n)) [__GLIBC_MINOR__ >= 1]: Initialize new fields is_char of struct printf_info. (ostream::operator<<(long double n)) [__GLIBC_MINOR__ >= 1]: Likewise. --- egcs-980214/libio/filebuf.cc.~1~ Fri Feb 6 23:01:41 1998 +++ egcs-980214/libio/filebuf.cc Mon Jan 12 23:03:35 1998 @@ -131,7 +131,11 @@ filebuf* filebuf::open(const char *filename, const char *mode) { +#if _G_IO_IO_FILE_VERSION == 0x20001 + return (filebuf*)_IO_file_fopen(this, filename, mode, 0); +#else return (filebuf*)_IO_file_fopen(this, filename, mode); +#endif } filebuf* filebuf::attach(int fd) --- egcs-980214/libio/iolibio.h.~1~ Tue Sep 16 18:00:11 1997 +++ egcs-980214/libio/iolibio.h Fri Jan 16 20:31:20 1998 @@ -45,8 +45,13 @@ (_IO_seekoff(__fp, __offset, __whence, _IOS_INPUT|_IOS_OUTPUT) == _IO_pos_BAD ? EOF : 0) #define _IO_rewind(FILE) (void)_IO_seekoff(FILE, 0, 0, _IOS_INPUT|_IOS_OUTPUT) #define _IO_vprintf(FORMAT, ARGS) _IO_vfprintf(_IO_stdout, FORMAT, ARGS) +#if _G_IO_IO_FILE_VERSION == 0x20001 +#define _IO_freopen(FILENAME, MODE, FP) \ + (_IO_file_close_it(FP), _IO_file_fopen(FP, FILENAME, MODE, 0)) +#else #define _IO_freopen(FILENAME, MODE, FP) \ (_IO_file_close_it(FP), _IO_file_fopen(FP, FILENAME, MODE)) +#endif #define _IO_fileno(FP) ((FP)->_fileno) extern _IO_FILE* _IO_popen __P((const char*, const char*)); #define _IO_pclose _IO_fclose --- egcs-980214/libio/iostream.cc.~1~ Mon Feb 16 19:52:43 1998 +++ egcs-980214/libio/iostream.cc Sun Feb 22 16:03:55 1998 @@ -634,6 +634,9 @@ /* group: */ 0, #if defined __GLIBC__ && __GLIBC__ >= 2 /* extra: */ 0, +#if __GLIBC_MINOR__ >= 1 + /* is_char: */ 0, +#endif #endif /* pad: */ fill() }; @@ -737,6 +740,9 @@ /* group: */ 0, #if defined __GLIBC__ && __GLIBC__ >= 2 /* extra: */ 0, +#if __GLIBC_MINOR__ >= 1 + /* is_char: */ 0, +#endif #endif /* pad: */ fill() }; --- egcs-980214/libio/libioP.h.~1~ Fri Feb 6 23:01:46 1998 +++ egcs-980214/libio/libioP.h Sun Feb 22 16:13:13 1998 @@ -226,6 +226,19 @@ typedef int (*_IO_stat_t) __P ((_IO_FILE *, void *)); #define _IO_SYSSTAT(FP, BUF) JUMP1 (__stat, FP, BUF) +#if _G_IO_IO_FILE_VERSION == 0x20001 +/* The 'showmany' hook can be used to get an image how much input is + available. In many cases the answer will be 0 which means unknown + but some cases one can provide real information. */ +typedef int (*_IO_showmanyc_t) __P ((_IO_FILE *)); +#define _IO_SHOWMANYC(FP) JUMP0 (__showmanyc, FP) + +/* The 'imbue' hook is used to get information about the currently + installed locales. */ +typedef void (*_IO_imbue_t) __P ((_IO_FILE *, void *)); +#define _IO_IMBUE(FP, LOCALE) JUMP1 (__imbue, FP, LOCALE) +#endif + #define _IO_CHAR_TYPE char /* unsigned char ? */ #define _IO_INT_TYPE int @@ -254,6 +267,10 @@ JUMP_FIELD(_IO_seek_t, __seek); JUMP_FIELD(_IO_close_t, __close); JUMP_FIELD(_IO_stat_t, __stat); +#if _G_IO_IO_FILE_VERSION == 0x20001 + JUMP_FIELD(_IO_showmanyc_t, __showmanyc); + JUMP_FIELD(_IO_imbue_t, __imbue); +#endif #if 0 get_column; set_column; @@ -381,7 +398,12 @@ extern _IO_FILE* _IO_file_attach __P ((_IO_FILE *, int)); extern _IO_FILE* _IO_file_open __P ((_IO_FILE *, const char *, int, int, int, int)); +#if _G_IO_IO_FILE_VERSION == 0x20001 +extern _IO_FILE* _IO_file_fopen __P ((_IO_FILE *, const char *, const char *, + int)); +#else extern _IO_FILE* _IO_file_fopen __P ((_IO_FILE *, const char *, const char *)); +#endif extern _IO_ssize_t _IO_file_write __P ((_IO_FILE *, const void *, _IO_ssize_t)); extern _IO_ssize_t _IO_file_read __P ((_IO_FILE *, void *, _IO_ssize_t)); --- egcs-980214/libio/streambuf.cc.~1~ Sat Dec 6 08:32:08 1997 +++ egcs-980214/libio/streambuf.cc Fri Jan 16 20:28:29 1998 @@ -301,6 +301,17 @@ int streambuf::sys_close() { return 0; /* Suceess; do nothing */ } +#if _G_IO_IO_FILE_VERSION == 0x20001 +int streambuf::showmanyc() +{ + return -1; +} + +void streambuf::imbue(void *) +{ +} +#endif + streammarker::streammarker(streambuf *sb) { _IO_init_marker(this, sb); --- egcs-980214/libio/streambuf.h.~1~ Fri Feb 6 23:01:47 1998 +++ egcs-980214/libio/streambuf.h Mon Feb 16 21:46:50 1998 @@ -55,8 +55,12 @@ #endif #ifndef _IO_wchar_t +#if _G_IO_IO_FILE_VERSION == 0x20001 +#define _IO_wchar_t _G_wchar_t +#else #define _IO_wchar_t short #endif +#endif extern "C++" { class istream; /* Work-around for a g++ name mangling bug. Fixed in 2.6. */ @@ -176,9 +180,9 @@ ostream* tie(ostream* val) { ostream* save=_tie; _tie=val; return save; } // Methods to change the format state. - _IO_wchar_t fill() const { return (_IO_wchar_t)_fill; } + _IO_wchar_t fill() const { return _fill; } _IO_wchar_t fill(_IO_wchar_t newf) - {_IO_wchar_t oldf = (_IO_wchar_t)_fill; _fill = (char)newf; return oldf;} + {_IO_wchar_t oldf = _fill; _fill = newf; return oldf;} fmtflags flags() const { return _flags; } fmtflags flags(fmtflags new_val) { fmtflags old_val = _flags; _flags = new_val; return old_val; } @@ -409,6 +413,10 @@ virtual streampos sys_seek(streamoff, _seek_dir); virtual int sys_close(); virtual int sys_stat(void*); // Actually, a (struct stat*) +#if _G_IO_IO_FILE_VERSION == 0x20001 + virtual int showmanyc(); + virtual void imbue(void *); +#endif }; // A backupbuf is a streambuf with full backup and savepoints on reading. -- Andreas Schwab "And now for something schwab@issan.informatik.uni-dortmund.de completely different" schwab@gnu.org