| 1 | //show composition of indent filter with ostream.
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| 2 | #include <boost/iostreams/filter/indent.hpp>
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| 3 | #include <boost/iostreams/filtering_stream.hpp>
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| 4 | #include <boost/iostreams/compose.hpp>
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| 5 | #include <iostream>
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| 6 |
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| 7 | void test_conversion(std::ostream& sout)
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| 8 | {
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| 9 | sout<<"inside test_conversion\n";
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| 10 | }
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| 11 |
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| 12 | using namespace boost::iostreams;
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| 13 |
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| 14 | int main(void)
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| 15 | {
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| 16 | ; filtering_ostream mout
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| 17 | ; mout.push
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| 18 | ( compose
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| 19 | ( indent_filter<>()
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| 20 | , std::cout
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| 21 | )
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| 22 | )
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| 23 | ; mout<<"line1\n"
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| 24 | #if 0
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| 25 | ; ++mout
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| 26 | ; mout<<"line1.1"<<std::endl
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| 27 | ; mout<<indent_in<<"line1.1.1"<<std::endl
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| 28 | ; test_conversion(mout)
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| 29 | #if 0
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| 30 | ; mout<<"line1.1.2"<<std::endl
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| 31 | #endif
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| 32 | ; --mout
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| 33 | ; unsigned u=22
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| 34 | ; mout<<"line1.2:unsigned="<<u<<std::endl
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| 35 | ; float f=3.1416
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| 36 | ; mout<<"line1.3:float="<<f<<std::endl
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| 37 | ; --mout
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| 38 | ; --mout
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| 39 | ; mout<<"line2\n"
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| 40 | #endif
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| 41 | ; return 0
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| 42 | ;
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| 43 | }
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| 44 | //Expected output:
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| 45 | /*
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| 46 | line1
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| 47 | line1.1
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| 48 | line1.1.1
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| 49 | inside test_conversion
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| 50 | line1.2:unsigned=22
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| 51 | line1.3:float=3.1416
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| 52 | line2
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| 53 | */
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| 54 |
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