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NEWS: Reindent and copyedit
Make the indentation of the "Deprecated and removed features" section for 2.28 consistent with the indentation of the "Major new features" section above. Also, consistently refer to "stdio functions" instead of "stdio.h functions".
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@ -27,35 +27,35 @@ Major new features:
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Deprecated and removed features, and other changes affecting compatibility:
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* The nonstandard header files <libio.h> and <_G_config.h> are no longer
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installed. Software that was using either header should be updated to
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use standard <stdio.h> interfaces instead.
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* The nonstandard header files <libio.h> and <_G_config.h> are no longer
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installed. Software that was using either header should be updated to
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use standard <stdio.h> interfaces instead.
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* The stdio.h functions 'getc' and 'putc' are no longer defined as macros.
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This was never required by the C standard, and the macros just expanded
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to call alternative names for the same functions. If you hoped getc and
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putc would provide performance improvements over fgetc and fputc, instead
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investigate using (f)getc_unlocked and (f)putc_unlocked, and, if
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necessary, flockfile and funlockfile.
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* The stdio functions 'getc' and 'putc' are no longer defined as macros.
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This was never required by the C standard, and the macros just expanded
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to call alternative names for the same functions. If you hoped getc and
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putc would provide performance improvements over fgetc and fputc, instead
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investigate using (f)getc_unlocked and (f)putc_unlocked, and, if
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necessary, flockfile and funlockfile.
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* All stdio functions now treat end-of-file as a sticky condition. If you
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read from a file until EOF, and then the file is enlarged by another
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process, you must call clearerr or another function with the same effect
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(e.g. fseek, rewind) before you can read the additional data. This
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corrects a longstanding C99 conformance bug. It is most likely to affect
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programs that use stdio to read interactive input from a terminal.
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(Bug #1190.)
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* All stdio functions now treat end-of-file as a sticky condition. If you
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read from a file until EOF, and then the file is enlarged by another
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process, you must call clearerr or another function with the same effect
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(e.g. fseek, rewind) before you can read the additional data. This
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corrects a longstanding C99 conformance bug. It is most likely to affect
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programs that use stdio to read interactive input from a terminal.
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(Bug #1190.)
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* The macros 'major', 'minor', and 'makedev' are now only available from
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the header <sys/sysmacros.h>; not from <sys/types.h> or various other
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headers that happen to include <sys/types.h>. These macros are rarely
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used, not part of POSIX nor XSI, and their names frequently collide with
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user code; see https://sourceware.org/bugzilla/show_bug.cgi?id=19239 for
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further explanation.
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* The macros 'major', 'minor', and 'makedev' are now only available from
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the header <sys/sysmacros.h>; not from <sys/types.h> or various other
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headers that happen to include <sys/types.h>. These macros are rarely
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used, not part of POSIX nor XSI, and their names frequently collide with
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user code; see https://sourceware.org/bugzilla/show_bug.cgi?id=19239 for
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further explanation.
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<sys/sysmacros.h> is a GNU extension. Portable programs that require
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these macros should first include <sys/types.h>, and then include
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<sys/sysmacros.h> if __GNU_LIBRARY__ is defined.
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<sys/sysmacros.h> is a GNU extension. Portable programs that require
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these macros should first include <sys/types.h>, and then include
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<sys/sysmacros.h> if __GNU_LIBRARY__ is defined.
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Changes to build and runtime requirements:
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