Hi Rooters,
Why ACLiC cause fatal error and core-dump on union?
A simple code (ACLiC.cxx) generates the following message and return to Linux:
Fatal: sizeof(::_ColRec) == sizeof(::ROOT::Shadow::_ColRec) violated at
line 73 of `fileRndAvp.cxx’
aborting
I could not suppose the reasons to generate an object related to C-structure
in such way in fileRndAvp.cxx:
namespace ROOT { // LINE # 32
namespace Shadow {
#if !(defined(R__ACCESS_IN_SYMBOL) || defined(R__USE_SHADOW_CLASS))
typedef ::_ColRec _ColRec;
#else
class _ColRec {
public:
//friend XX;
#if !(defined(R__ACCESS_IN_SYMBOL) || defined(R__USE_SHADOW_CLASS))
typedef ::_ColRec::U1 U1;
#else
class U1 {
public:
//friend XX;
int* intVec; //
float* floatVec; //
};
#endif
— Cut ----
// Make sure the shadow class has the right sizeof
R__ASSERT(sizeof(::_ColRec) == sizeof(::ROOT::Shadow::_ColRec)); // LINE #73
Let me know workarounds to continue my project.
Thanks, Yuki
ACLiC.cxx
#include <stdio.h>
typedef struct _ColRec {
char * name ;
union U1 {
int * intVec ;
float * floatVec ;
} data ;
} ColRec ;
typedef ColRec * Col ;
int ACLiC( Col col ) {
printf("%s\n", col->name ) ;
return 1 ;
}
