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Unions

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Date: Tue, 13 Dec 2022 14:55:12 -0800 (PST)
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Subject: Unions
From: itb.john.kniewasser@gmail.com (John Kniewasser)
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by: John Kniewasser - Tue, 13 Dec 2022 22:55 UTC

Good day to you all!

I am looking for some help with this union, specifically with the alignment required.

At the end of each struct are statements
} Compressed;
} Windows;
} File;

I believe this relates to the alignment of the struct.

union
{
struct struct_compressed_memory
{
HGLOBAL hData; /* internal use */
L_VOID L_HUGE*pData; /* internal use */
} Compressed;

struct struct_window_memory
{
HGLOBAL hData; /* Internal use */
L_UCHAR L_FAR *pData; /* Internal use */
} Windows;

struct struct_file_memory
{
L_INT fd; /* Internal use */
L_CHAR L_FAR *Filename;/* Internal use */
} File;
} Addr;

Thank you if anyone can decipher this!

Cheers, JK

Optimization hinders evolution.

devel / comp.lang.clipper.visual-objects / Unions