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kc3-lang/gnulib/doc/posix-functions/putchar.texi

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Hash : a9525771
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Date : 2024-12-27T23:24:51

Rename module stdio to stdio-h.

* modules/stdio-h: Renamed from modules/stdio.
* modules/stdio-h-tests: Renamed from modules/stdio-tests.
* modules/stdio-h-c++-tests: Renamed from modules/stdio-c++-tests.
* tests/test-stdio-h.c: Renamed from tests/test-stdio.c.
* tests/test-stdio-h-c++.cc: Renamed from tests/test-stdio-c++.cc.
* tests/test-stdio-h-c++2.cc: Renamed from tests/test-stdio-c++2.cc.
* doc/posix-headers/stdio.texi: Update.
* doc/posix-functions/fgetc.texi: Update.
* doc/posix-functions/fgets.texi: Update.
* doc/posix-functions/fprintf.texi: Update.
* doc/posix-functions/fputc.texi: Update.
* doc/posix-functions/fputs.texi: Update.
* doc/posix-functions/fread.texi: Update.
* doc/posix-functions/fscanf.texi: Update.
* doc/posix-functions/fwrite.texi: Update.
* doc/posix-functions/getc.texi: Update.
* doc/posix-functions/getchar.texi: Update.
* doc/posix-functions/printf.texi: Update.
* doc/posix-functions/putc.texi: Update.
* doc/posix-functions/putchar.texi: Update.
* doc/posix-functions/puts.texi: Update.
* doc/posix-functions/read.texi: Update.
* doc/posix-functions/scanf.texi: Update.
* doc/posix-functions/vfprintf.texi: Update.
* doc/posix-functions/vprintf.texi: Update.
* doc/posix-functions/write.texi: Update.
* modules/* (Depends-on): Update.
* modules/stdio: New file.

doc/posix-functions/putchar.texi

@node putchar
@subsection @code{putchar}
@findex putchar

POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/functions/putchar.html}

Gnulib module: stdio-h, nonblocking, sigpipe
@mindex stdio-h
@mindex nonblocking
@mindex sigpipe

Portability problems fixed by Gnulib module @code{stdio-h}, together with module @code{nonblocking}:
@itemize
@item
When writing to a non-blocking pipe whose buffer is full, this function fails
with @code{errno} being set to @code{ENOSPC} instead of @code{EAGAIN} on some
platforms:
mingw, MSVC 14.
@end itemize

Portability problems fixed by Gnulib module @code{stdio-h}, together with module @code{sigpipe}:
@itemize
@item
When writing to a pipe with no readers, this function fails, instead of
obeying the current @code{SIGPIPE} handler, on some platforms:
mingw, MSVC 14.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
On Windows platforms (excluding Cygwin), this function does not set @code{errno}
upon failure.
@item
On some platforms, this function does not set @code{errno} or the
stream error indicator on attempts to write to a read-only stream:
Cygwin 1.7.9.
@end itemize