48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
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//===----------------------------------------------------------------------===//
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//
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <string>
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// basic_string<charT,traits,Allocator>&
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// append(const charT* s, size_type n);
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#include <string>
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#include <stdexcept>
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#include <cassert>
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template <class S>
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void
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test(S s, const typename S::value_type* str, typename S::size_type n, S expected)
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{
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s.append(str, n);
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assert(s.__invariants());
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assert(s == expected);
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}
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int main()
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{
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typedef std::string S;
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test(S(), "", 0, S());
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test(S(), "12345", 3, S("123"));
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test(S(), "12345", 4, S("1234"));
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test(S(), "12345678901234567890", 0, S());
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test(S(), "12345678901234567890", 1, S("1"));
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test(S(), "12345678901234567890", 3, S("123"));
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test(S(), "12345678901234567890", 20, S("12345678901234567890"));
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test(S("12345"), "", 0, S("12345"));
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test(S("12345"), "12345", 5, S("1234512345"));
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test(S("12345"), "1234567890", 10, S("123451234567890"));
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test(S("12345678901234567890"), "", 0, S("12345678901234567890"));
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test(S("12345678901234567890"), "12345", 5, S("1234567890123456789012345"));
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test(S("12345678901234567890"), "12345678901234567890", 20,
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S("1234567890123456789012345678901234567890"));
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}
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