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emit/__emit: Do not allow to redefine the same label

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Daniel_Cortez 2017-12-02 19:02:17 +07:00
parent 907c4b610e
commit 873060e7e8
1 changed files with 2 additions and 0 deletions
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source/compiler/sc1.c
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@ -6561,6 +6561,8 @@ SC_FUNC void emit_parse_line(void)
error(221,st); /* label name shadows tagname */ error(221,st); /* label name shadows tagname */
} else { } else {
sym=fetchlab(st); sym=fetchlab(st);
if ((sym->usage & uDEFINE)!=0)
error(021,st); /* symbol already defined */
setlabel((int)sym->addr); setlabel((int)sym->addr);
sym->usage|=uDEFINE; sym->usage|=uDEFINE;
} /* if */ } /* if */