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* gdbtypes.h (TYPE_CODE_ARRAY): Doc fix.

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Jim Blandy 2004-08-25 15:41:54 +00:00
parent b04e311dda
commit e6742ace8b
2 changed files with 25 additions and 1 deletions
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gdb/ChangeLog
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@ -1,3 +1,7 @@
2004-08-25 Jim Blandy <jimb@redhat.com>
* gdbtypes.h (TYPE_CODE_ARRAY): Doc fix.
2004-08-25 Andrew Cagney <cagney@gnu.org>
* infrun.c (struct execution_control_state): Delete field

22
gdb/gdbtypes.h
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@ -82,7 +82,27 @@ enum type_code
{
TYPE_CODE_UNDEF, /* Not used; catches errors */
TYPE_CODE_PTR, /* Pointer type */
TYPE_CODE_ARRAY, /* Array type with lower & upper bounds. */
/* Array type with lower & upper bounds.
Regardless of the language, GDB represents multidimensional
array types the way C does: as arrays of arrays. So an
instance of a GDB array type T can always be seen as a series
of instances of TYPE_TARGET_TYPE (T) laid out sequentially in
memory.
Row-major languages like C lay out multi-dimensional arrays so
that incrementing the rightmost index in a subscripting
expression results in the smallest change in the address of the
element referred to. Column-major languages like Fortran lay
them out so that incrementing the leftmost index results in the
smallest change.
This means that, in column-major languages, working our way
from type to target type corresponds to working through indices
from right to left, not left to right. */
TYPE_CODE_ARRAY,
TYPE_CODE_STRUCT, /* C struct or Pascal record */
TYPE_CODE_UNION, /* C union or Pascal variant part */
TYPE_CODE_ENUM, /* Enumeration type */