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manual: __is_last is no longer part of iconv internals

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The __is_last field was replaced with a bitmask in
commit 85830c4c46 in 2000,
and multiple bits are in use today.

Reviewed-by: DJ Delorie <dj@redhat.com>
This commit is contained in:
Florian Weimer 2024-09-20 13:10:54 +02:00
parent 0cb64617a6
commit 00ba299787
1 changed files with 9 additions and 9 deletions
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18
manual/charset.texi
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@ -2422,11 +2422,11 @@ written into the buffer to signal how much output is available. If this
conversion step is not the last one, the element must not be modified.
The @code{__outbufend} element must not be modified.
@item int __is_last
This element is nonzero if this conversion step is the last one. This
information is necessary for the recursion. See the description of the
conversion function internals below. This element must never be
modified.
@item int __flags
This field is a set of flags. The @code{__GCONV_IS_LAST} bit is set if
this conversion step is the last one. This information is necessary for
the recursion. See the description of the conversion function internals
below. This element must never be modified.
@item int __invocation_counter
The conversion function can use this element to see how many calls of
@ -2731,8 +2731,8 @@ Otherwise the function has to emit a byte sequence to bring the state
object into the initial state. Once this all happened the other
conversion modules in the chain of conversions have to get the same
chance. Whether another step follows can be determined from the
@code{__is_last} element of the step data structure to which the first
parameter points.
@code{__GCONV_IS_LAST} flag in the @code{__flags} field of the step
data structure to which the first parameter points.
The more interesting mode is when actual text has to be converted. The
first step in this case is to convert as much text as possible from the
@ -2866,7 +2866,7 @@ gconv (struct __gconv_step *step, struct __gconv_step_data *data,
/* @r{Call the steps down the chain if there are any but only}
@r{if we successfully emitted the escape sequence.} */
if (status == __GCONV_OK && ! data->__is_last)
if (status == __GCONV_OK && ! (data->__flags & __GCONV_IS_LAST))
status = fct (next_step, next_data, NULL, NULL,
written, 1);
@}
@ -2892,7 +2892,7 @@ gconv (struct __gconv_step *step, struct __gconv_step_data *data,
/* @r{If this is the last step, leave the loop. There is}
@r{nothing we can do.} */
if (data->__is_last)
if (data->__flags & __GCONV_IS_LAST)
@{
/* @r{Store information about how many bytes are}
@r{available.} */