#include?
#include?
#include?
#include?
#include?
/*
On?most?platforms?malloc?returns?pointers?to?blocks?that?are
aligned?on?addresses?that?are?multiples?of?the?size?of?the?largest
basic?data?type.?Some?CII?functions?use?a?union?to?determine?this
multiple?（cf.?union?align?on?p.?80）.?Alignments?are?less?restrictive
on?some?platforms?and?for?these?MAXALIGN?must?be?defined?as?the
alignment?required.

This?program?attempts?to?determine?the?correct?value?for?MAXALIGN?if
one?is?necessary?and?echo?the?appropriate?-D?option.?Unfortunately
the?method?used?relies?on?the?C?compiler?using?the?same?alignments?as
malloc?which?is?not?required.?malloc?is?the?final?authority:?If?it
returns?addresses?that?are?multiples?of?sizeof?（union?align）?then
MAXALIGN?is?unnecessary;?otherwise?MAXALIGN?must?provide?the
alignment.?Incorrect?values?of?MAXALIGN?can?cause?crashes?and
assertion?failures.
*/
union?align?{
	int?i;
	long?l;
	long?*lp;
	void?*p;
	void?（*fp）（void）;
	float?f;
	double?d;
	long?double?ld;
};

typedef?void?（*functp）;
#define?yy?\
	xx（inti）;\
	xx（longl）;\
	xx（long?*lp）;\
	xx（void?*p）;\
	xx（functpfp）;\
	xx（floatf）;\
	xx（doubled）;\
	xx（long?doubleld）;

int?main（int?argc?char?*argv[]）?{
#define?xx（tv）	struct?{?char?pad;?t?v;?}?v
	yy
#undef?xx
	unsigned?max?=?0;

#define?xx（tv）?if?（（char?*）&v.v?-?&v.pad?>?max）?max?=?（char?*）&v.v?-?&v.pad
	yy
#undef?yy
	if?（argc?>?1?&&?strcmp（argv[1]?“-v“）?==?0）
		fprintf（stderr?“sizeof?（union?align）?=?%u\n“?sizeof?（union?align））;
	assert（max）;
	if?（max?!=?sizeof?（union?align））
		printf（“-DMAXALIGN=%u\n“?max）;
	return?EXIT_SUCCESS;
}

?屬性????????????大小?????日期????時間???名稱
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?????目錄???????????0??2016-11-27?00:08??《C語言接口與實現》書中源代碼\
?????文件????????1943??2016-11-26?23:59??《C語言接口與實現》書中源代碼\README.txt
?????文件???????90233??2016-11-27?00:00??《C語言接口與實現》書中源代碼\cii11.tar.Z
?????文件???????52190??2016-11-27?00:00??《C語言接口與實現》書中源代碼\cii11.tar.gz
?????文件???????77587??2016-11-27?00:01??《C語言接口與實現》書中源代碼\cii11.zip
?????目錄???????????0??2016-11-27?00:06??《C語言接口與實現》書中源代碼\contrib\
?????文件????????1983??2016-11-27?00:03??《C語言接口與實現》書中源代碼\contrib\README.txt
?????文件????????9496??2016-11-27?00:06??《C語言接口與實現》書中源代碼\contrib\cii-lcc-win32.zip
?????文件???????29140??2016-11-27?00:03??《C語言接口與實現》書中源代碼\contrib\cii10-nt.zip
?????文件????????1713??2016-11-27?00:04??《C語言接口與實現》書中源代碼\contrib\maxalign.c
?????文件????????2547??2016-11-27?00:05??《C語言接口與實現》書中源代碼\contrib\thread.linux86
?????目錄???????????0??2016-11-27?00:10??《C語言接口與實現》書中源代碼\old\
?????文件???????63501??2016-11-27?00:08??《C語言接口與實現》書中源代碼\old\cii09b2.tar.Z
?????文件???????37586??2016-11-27?00:08??《C語言接口與實現》書中源代碼\old\cii09b2.tar.gz
?????文件???????54235??2016-11-27?00:08??《C語言接口與實現》書中源代碼\old\cii09b2.zip
?????文件???????72769??2016-11-27?00:09??《C語言接口與實現》書中源代碼\old\cii09b3.tar.Z
?????文件???????43477??2016-11-27?00:09??《C語言接口與實現》書中源代碼\old\cii09b3.tar.gz
?????文件???????66704??2016-11-27?00:09??《C語言接口與實現》書中源代碼\old\cii09b3.zip
?????文件???????74579??2016-11-27?00:09??《C語言接口與實現》書中源代碼\old\cii10.tar.Z
?????文件???????44850??2016-11-27?00:09??《C語言接口與實現》書中源代碼\old\cii10.tar.gz
?????文件???????68171??2016-11-27?00:10??《C語言接口與實現》書中源代碼\old\cii10.zip