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Merge polly.local:/tmp/maint/bug24117/my50-bug24117

Browse Source 
into  polly.local:/home/kaa/src/maint/mysql-5.0-maint


mysys/typelib.c:
  Auto merged
sql/field.cc:
  Auto merged
sql/field.h:
  Auto merged
This commit is contained in:
unknown
2006-12-14 21:24:52 +03:00
parent 931dcc8a83 5b71281467
commit db1a2d2d80
6 changed files with 105 additions and 0 deletions
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51
mysys/typelib.c
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@ -119,3 +119,54 @@ const char *get_type(TYPELIB *typelib, uint nr)
return(typelib->type_names[nr]);
return "?";
}
/*
Create a copy of a specified TYPELIB structure.
SYNOPSIS
copy_typelib()
root pointer to a MEM_ROOT object for allocations
from pointer to a source TYPELIB structure
RETURN
pointer to the new TYPELIB structure on successful copy, or
NULL otherwise
*/
TYPELIB *copy_typelib(MEM_ROOT *root, TYPELIB *from)
{
TYPELIB *to;
uint i;
if (!from)
return NULL;
if (!(to= (TYPELIB*) alloc_root(root, sizeof(TYPELIB))))
return NULL;
if (!(to->type_names= (const char **)
alloc_root(root, (sizeof(char *) + sizeof(int)) * (from->count + 1))))
return NULL;
to->type_lengths= (unsigned int *)(to->type_names + from->count + 1);
to->count= from->count;
if (from->name)
{
if (!(to->name= strdup_root(root, from->name)))
return NULL;
}
else
to->name= NULL;
for (i= 0; i < from->count; i++)
{
if (!(to->type_names[i]= strmake_root(root, from->type_names[i],
from->type_lengths[i])))
return NULL;
to->type_lengths[i]= from->type_lengths[i];
}
to->type_names[to->count]= NULL;
to->type_lengths[to->count]= 0;
return to;
}