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This patch fixes the string operator for string and character multiplication, to adjust to the semantics specified by the RR. In particular, multiplying by a negative number or zero must result in the empty string. Signed-off-by: Jose E. Marchesi <jemarch@gnu.org> gcc/algol68/ChangeLog * a68-low-strings.cc (a68_string_mult): Adjust to RR semantics for negative or zero factor argument. * ga68.texi (String operators): Adjust documentation accordingly. gcc/testsuite/ChangeLog * algol68/execute/mult-char-1.a68: Multiplying a char or string by negative or zero factor results in the empty string. * algol68/execute/mult-string-3.a68: Likewise. * algol68/execute/mult-string-2.a68: Likewise. * algol68/execute/mult-string-1.a68: Likewise.
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