(non_ascii_char_to_string): If C is negative, signal error.
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@ -141,6 +141,9 @@ non_ascii_char_to_string (c, workbuf, str)
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{
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int charset, c1, c2;
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if (c < 0)
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invalid_character (c);
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if (COMPOSITE_CHAR_P (c))
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{
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int cmpchar_id = COMPOSITE_CHAR_ID (c);
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