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Structure Glossary


%align       align size --         gforth       ``%align''
Align the data space pointer to the alignment align. 
%alignment       align size -- align         gforth       ``%alignment''
The alignment of the structure. 
%alloc       size align -- addr         gforth       ``%alloc''
Allocate size address units with alignment align, giving a data block at addr; throw an ior code if not successful. 
%allocate       align size -- addr ior         gforth       ``%allocate''
Allocate size address units with alignment align, similar to allocate. 
%allot       align size -- addr         gforth       ``%allot''
Allot size address units of data space with alignment align; the resulting block of data is found at addr. 
cell%       -- align size         gforth       ``cell%''


char%       -- align size         gforth       ``char%''


dfloat%       -- align size         gforth       ``dfloat%''


double%       -- align size         gforth       ``double%''


end-struct       align size "name" --         gforth       ``end-struct''
Define a structure/type descriptor name with alignment align and size size1 (size rounded up to be a multiple of align).
name execution: - align size1

field       align1 offset1 align size "name" --  align2 offset2         gforth       ``field''
Create a field name with offset offset1, and the type given by align size. offset2 is the offset of the next field, and align2 is the alignment of all fields.
name execution: addr1 - addr2.
addr2=addr1+offset1 
float%       -- align size         gforth       ``float%''


naligned       addr1 n -- addr2         gforth       ``naligned''
addr2 is the aligned version of addr1 with respect to the alignment n. 
sfloat%       -- align size         gforth       ``sfloat%''


%size       align size -- size         gforth       ``%size''
The size of the structure. 
struct       -- align size         gforth       ``struct''
An empty structure, used to start a structure definition.