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38 lines
557 B
C
38 lines
557 B
C
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#include "hash.h"
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#include "uniquestring.h"
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#include "common.h"
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#include <string.h>
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#include <stdlib.h>
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#include <assert.h>
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static SymbolTable *sym = NULL;
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void
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init_unique_string ()
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{
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if (sym == NULL)
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sym = make_symbol_table ();
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}
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const char *
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unique_string (const char *s)
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{
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SymbolInfo si;
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const char *p;
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if (lookup_symbol (sym, s, &si, &p) != HASH_NOERR)
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{
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char *newp;
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newp = malloc (strlen (s) + 1);
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assert(newp);
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strcpy (newp, s);
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insert_symbol (sym, newp, si);
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p = newp;
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}
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return p;
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}
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