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Added warning diagnostics for conflicts between extern/public and static declarations.

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This commit is contained in:
Greg King
2015-08-10 13:39:17 -04:00
parent 4e9842ef33
commit 6032849e60
1 changed files with 14 additions and 0 deletions
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14
src/cc65/symtab.c
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@@ -813,11 +813,25 @@ SymEntry* AddGlobalSym (const char* Name, const Type* T, unsigned Flags)
} }
} }
/* If a static declaration follows a non-static declaration, then
** warn about the conflict. (It will compile a public declaration.)
*/
if ((Flags & SC_EXTERN) == 0 && (Entry->Flags & SC_EXTERN) != 0) {
Warning ("static declaration follows non-static declaration of `%s'.", Name);
}
/* An extern declaration must not change the current linkage. */ /* An extern declaration must not change the current linkage. */
if (IsFunc || (Flags & (SC_EXTERN | SC_DEF)) == SC_EXTERN) { if (IsFunc || (Flags & (SC_EXTERN | SC_DEF)) == SC_EXTERN) {
Flags &= ~SC_EXTERN; Flags &= ~SC_EXTERN;
} }
/* If a public declaration follows a static declaration, then
** warn about the conflict. (It will compile a public declaration.)
*/
if ((Flags & SC_EXTERN) != 0 && (Entry->Flags & SC_EXTERN) == 0) {
Warning ("public declaration follows static declaration of `%s'.", Name);
}
/* Add the new flags */ /* Add the new flags */
Entry->Flags |= Flags; Entry->Flags |= Flags;