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* [Bug c/25274] New: sizeof(struct) fails for 'unlucky' structure
@ 2005-12-06 12:43 warg0d at go2 dot pl
2005-12-06 13:08 ` [Bug c/25274] " rguenth at gcc dot gnu dot org
0 siblings, 1 reply; 2+ messages in thread
From: warg0d at go2 dot pl @ 2005-12-06 12:43 UTC (permalink / raw)
To: gcc-bugs
the bug is in sizeof(element) - i've made unlucky structure, some
time ago, where sum of sizeof(each_element) gives size of 14 and
sizeof(whole_struct) returns 16. on old gcc-2.9.x there was the same
problem.
as an example program i've wrote shor one, that shows sizeof() from
struct having 14 char's table, 'unlucky' struct and sum of all elements sizes.
// sizeof(a)==16B instead of 14B...
struct a
{
char bfType[2];// 2B
unsigned long bfSize;// 4B
unsigned short bfReserved1;// 2B
unsigned short bfReserved2;// 2B
unsigned long bfOffBits;// 4B
};
// sizeof(b)==14B - OK!
struct b
{
char nothing[14];
};
--
Summary: sizeof(struct) fails for 'unlucky' structure
Product: gcc
Version: 3.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: warg0d at go2 dot pl
GCC build triplet: x86
GCC host triplet: x86
GCC target triplet: x86
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25274
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2005-12-06 12:43 [Bug c/25274] New: sizeof(struct) fails for 'unlucky' structure warg0d at go2 dot pl
2005-12-06 13:08 ` [Bug c/25274] " rguenth at gcc dot gnu dot org
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