我有一个库Select @sipcount= (SELECT ISNULL(SUM(SIP.[Total]),0) FROM (
SELECT COUNT(1) AS Total FROM [dbo].[MF_tblSundaramSIPDetails] AS [mtfsd] WHERE ISNULL([mtfsd].[TrxnType],'') = 'SYSTEMATIC PURCHASE' AND [mtfsd].[ClientFK] IN (SELECT NewspaperFK FROM dbo.Split(@ClientPK,',')
AND EXISTS (SELECT 1 FROM TableName WHERE Column_Value = 'STR')
) UNION ALL
SELECT COUNT(1) AS Total FROM [dbo].[MF_tblCamsSIPDetails] AS [mtfsd] WHERE ISNULL([AUT_Trntyp],'') = 'P' AND [mtfsd].[ClientFK] IN (SELECT NewspaperFK FROM dbo.Split(@ClientPK,',') AND EXISTS
(SELECT 1 FROM TableName WHERE Column_Value = 'STR'))
UNION ALL
SELECT COUNT(1) AS Total FROM [dbo].[MF_tblFranklinSIPDetails] AS [mtfsd] WHERE ISNULL([mtfsd].[isSipStp],'') = 'SIP' AND [mtfsd].[ClientFK] IN (SELECT NewspaperFK FROM dbo.Split(@ClientPK,',')
AND EXISTS (SELECT 1 FROM TableName WHERE Column_Value = 'STR'))
UNION ALL
SELECT COUNT(1) AS Total FROM [dbo].[MF_tblKarvySIPDetails] AS [mtfsd] WHERE ISNULL([mtfsd].[TrType],'') = 'SIP' AND [mtfsd].[ClientFK] IN
(SELECT NewspaperFK FROM dbo.Split(@ClientPK,',')
AND EXISTS (SELECT 1 FROM TableName WHERE Column_Value = 'STR')
) ) AS SIP)
，其中包含libA.so类，我有一个库MyClass，它也有名为libB.so的类。这些类仅用于库中。首先，我的程序会加载MyClass，然后加载libA.so。
问题是libB.so使用libB.so中的MyClass，但必须使用自己的libA.so。
如何在不重命名或使用命名空间的情况下解决问题？
g ++版本是5.4.0
答案 0 :(得分：0)
使用动态链接，您可以使用linker version script来限制从库中导出哪些符号。如果您确保所有冲突的符号都是本地的（或隐藏的，因为它们有时被称为），那么冲突就会消失，因为符号完全是库内部的。
无论如何，以这种方式管理符号可见性是一种很好的做法，它也可以减少程序加载时间，因为动态链接器必须处理更少的符号。