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Fix segfault when replacing an existing component in a library.

This commit is contained in:
Wayne Stambaugh 2010-10-12 16:44:39 -04:00
parent b1ffd179d1
commit e8bb7d1ef5
1 changed files with 11 additions and 5 deletions
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16
eeschema/class_library.cpp
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@ -344,18 +344,24 @@ LIB_COMPONENT* CMP_LIBRARY::ReplaceComponent( LIB_COMPONENT* aOldComponent,
wxASSERT( aNewComponent != NULL );
wxASSERT( aOldComponent->GetName().CmpNoCase( aNewComponent->GetName() )== 0 );
/* Remove the old root component. The component will automatically be removed when all
* it's aliases are deleted.
/* Remove the old root component. The component will automatically be deleted
* when all it's aliases are deleted. Do not place any code that accesses
* aOldComponent inside this loop that gets evaluated after the last alias is
* removed in RemoveEntry(). Failure to heed this warning will result in a
* segfault.
*/
BOOST_FOREACH( LIB_ALIAS* alias, aOldComponent->m_aliases )
size_t i = aOldComponent->m_aliases.size();
while( i != 0 )
{
RemoveEntry( (CMP_LIB_ENTRY*) alias );
i -= 1;
RemoveEntry( (CMP_LIB_ENTRY*) aOldComponent->m_aliases[ i ] );
}
LIB_COMPONENT* newCmp = new LIB_COMPONENT( *aNewComponent, this );
// Add new aliases to library alias map.
for( size_t i = 0; i < newCmp->m_aliases.size(); i++ )
for( i = 0; i < newCmp->m_aliases.size(); i++ )
{
aliases[ newCmp->m_aliases[ i ]->GetName() ] = newCmp->m_aliases[ i ];
}