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A struct, union, or enum tag name is identical to one or more other identifiers (other than the typedef name with which the tag is associated, if any).
See Identifier Classes for related warning classes.
| Class Name | Non-unique Identifiers: Tag | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Significance | style | ||||||||||||||||||
| Mnemonic | LANG.ID.NU.TAG | ||||||||||||||||||
| Categories |
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| Availability | Available for C and C++. |
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| Enabling | Checks for this warning class are
disabled by default. To enable them, add the following WARNING_FILTER
rule to the project configuration file.
WARNING_FILTER += allow class="Non-unique Identifiers: Tag" |
Suppose fileA.c and fileB.c are both in the analyzed software (but not necessarily in the same compilation unit).
Japanese (ja)
/* LANG.ID.NU.TAG.a.c */
#define tagA 1
extern int tagB;
void tagC(void);
/* LANG.ID.NU.TAG.b.c */ struct tagA {int Aa; int Ab;}; /* 'Non-unique Identifiers: Tag' warning issued here */ enum tagB {Ba, Bb}; /* 'Non-unique Identifiers: Tag' warning issued here */ union tagC {int Ca; char Cb;}; /* 'Non-unique Identifiers: Tag' warning issued here */
The following configuration file parameters affect checks for this warning class.