bug 1 $ cat bug.c
// Build as follows:
// gcc -W -Wall -O2 -std=gnu99 -c bug.c
#include <string.h>
typedef signed char s8;
typedef signed short s16;
typedef signed int s32;
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
struct ron{
short ann;
union{
u16 ben;
struct {
u8 bob;
u8 jon;
};
};
u32 abe;
u32 ada;
char sue[];
};
int sid(char *buf){
char *orig = buf;
struct ron don = {
.ann = 84,
.ben = 76,
.abe = 7,
.ada = 8,
};
memcpy(buf,&don,sizeof don);
buf += sizeof don;
return buf - orig;
}
bug 0 $ gcc -W -Wall -O2 -std=gnu99 -c bug.c
bug.c: In function sid:
bug.c:31: error: unknown field ben specified in initializer
bug.c:31: warning: missing braces around initializer
bug.c:31: warning: (near initialization for don.<anonymous>)
bug 1 $ gcc -v
Using built-in specs.
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-libgcj-multifile
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk
--disable-dssi --enable-plugin
--with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre --with-cpu=generic
--host=x86_64-redhat-linux
Thread model: posix
gcc version 4.1.1 20070123 (Red Hat 4.1.1-54)
bug 0 $
--
Summary: C99 initializer can't see anon struct/union members
Product: gcc
Version: 4.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: acahalan at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30737
