StringFormatter_h.patch


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--- src/pdf2htmlEX-0.18.8.rc1/pdf2htmlEX/src/StringFormatter.h	2020-08-20 04:43:25.000000000 +0800
+++ StringFormatter.h	2022-06-07 23:08:24.073903982 +0800
@@ -21,7 +21,7 @@
         GuardedPointer(StringFormatter * sf) : sf(sf) { ++(sf->buf_cnt); }
         GuardedPointer(const GuardedPointer & gp) : sf(gp.sf) { ++(sf->buf_cnt); }
         ~GuardedPointer(void) { --(sf->buf_cnt); }
-        operator char* () const { return &(sf->buf.front()); }
+        operator char* () const { return sf->buf.data(); }
     private:
         StringFormatter * sf;
     };