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LANG.ID.ND.EXT
LANG.ID.ND.MM
LANG.ID.ND.MO
LANG.ID.ND.NEST
LANG.ID.ND.SS

LANG.ID.NU.EXT
LANG.ID.NU.INT
LANG.ID.NU.LIBFN
LANG.ID.NU.TAG
LANG.ID.NU.TYPE

LANG.STRUCT.DECL.MGT

Non-distinct identifiers: external names
Non-distinct identifiers: macro/macro
Non-distinct identifiers: macro/other
Non-distinct identifiers: nested scope
Non-distinct identifiers: same scope

Non-unique identifiers: external name
Non-unique identifiers: internal name
Library Function Override
Non-unique identifiers: tag
Non-unique identifiers: typedef

Global variable declared with different types

Can detect some violations of this rule but cannot flag violations involving universal names

17 D
355 S
61 X

Fully implemented

621

Fully supported

CERT C: Rec. DCL23-C

Checks for:

• External identifiers not distinct
• Identifiers in same scope and namespace not distinct
• Macro identifier not distinct
• Name for macros and identifiers not distinct

Rec. partially covered.

0627, 0776, 0777, 0778,

0779, 0789, 0791, 0793