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Documented flexible array members

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git-svn-id: svn://svn.cc65.org/cc65/trunk@1929 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz 2003-02-05 22:34:27 +00:00
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doc/cc65.sgml
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@ -523,6 +523,27 @@ This cc65 version has some extensions to the ISO C standard.
how to use this feature.
<p>
<item> cc65 implements flexible array struct members as defined in the C99 ISO
standard. As an extension, in non ANSI mode, these fields may be
initialized. There are several exceptions, however (which is probably
the reason why the standard does not define this feature, because it is
highly unorthogonal). Flexible array members cannot be initialized...
<itemize>
<item> ...when defining an array of structs with flexible members.
<item> ...if such a struct is a member field of another struct which
is not the last field.
<item> If the struct which contains a flexible array member is
declared as <tt/register/ and the size and compiler settings
do allow the compiler to actually place the struct into the
register bank in the zero page.
</itemize>
Please note that - as defined in the ISO C standard - the <tt/sizeof/
operator returns the struct size with the flexible array member having
size zero, even if it is initialized.
<p>
</itemize>
<p>