| // ------------------------------------------------------------------------------ |
| // format_test2.cpp : a few real, simple tests. |
| // ------------------------------------------------------------------------------ |
| |
| // Copyright Samuel Krempp 2003. Use, modification, and distribution are |
| // subject to the Boost Software License, Version 1.0. (See accompanying |
| // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| |
| // see http://www.boost.org/libs/format for library home page |
| |
| // ------------------------------------------------------------------------------ |
| |
| #include "boost/format.hpp" |
| |
| #include <iostream> |
| #include <iomanip> |
| |
| #define BOOST_INCLUDE_MAIN |
| #include <boost/test/test_tools.hpp> |
| |
| |
| struct Rational { |
| int n,d; |
| Rational (int an, int ad) : n(an), d(ad) {} |
| }; |
| |
| std::ostream& operator<<( std::ostream& os, const Rational& r) { |
| os << r.n << "/" << r.d; |
| return os; |
| } |
| |
| |
| int test_main(int, char* []) |
| { |
| using namespace std; |
| using boost::format; |
| using boost::io::group; |
| using boost::str; |
| |
| Rational r(16,9); |
| |
| string s; |
| s = str(format("%5%. %5$=6s . %1% format %5%, c'%3% %1% %2%.\n") |
| % "le" % "bonheur" % "est" % "trop" % group(setfill('_'), "bref") ); |
| |
| if(s != "bref. _bref_ . le format bref, c'est le bonheur.\n") { |
| cerr << s; |
| BOOST_ERROR("centered alignement : formatting result incorrect"); |
| } |
| |
| |
| s = str(format("%+8d %-8d\n") % r % r ); |
| if(s != " +16/+9 16/9 \n") { |
| cerr << s; |
| BOOST_ERROR("(user-type) formatting result incorrect"); |
| } |
| |
| s = str(format("[%0+4d %0+8d %-08d]\n") % 8 % r % r); |
| if(s != "[+008 +0016/+9 16/9 ]\n") { |
| cerr << s; |
| BOOST_ERROR("(zero-padded user-type) formatting result incorrect"); |
| } |
| |
| |
| s = str( format("%1%, %20T_ (%|2$5|,%|3$5|)\n") % "98765" % 1326 % 88 ) ; |
| if( s != "98765, _____________ ( 1326, 88)\n" ) |
| BOOST_ERROR("(tabulation) formatting result incorrect"); |
| s = str( format("%s, %|20t|=") % 88 ) ; |
| if( s != "88, =" ) { |
| cout << s << endl; |
| BOOST_ERROR("(tabulation) formatting result incorrect"); |
| } |
| |
| |
| s = str(format("%.2s %8c.\n") % "root" % "user" ); |
| if(s != "ro u.\n") { |
| cerr << s; |
| BOOST_ERROR("(truncation) formatting result incorrect"); |
| } |
| |
| // width in format-string is overridden by setw manipulator : |
| s = str( format("%|1$4| %|1$|") % group(setfill('0'), setw(6), 1) ); |
| if( s!= "000001 000001") |
| BOOST_ERROR("width in format VS in argument misbehaved"); |
| |
| s = str( format("%|=s|") % group(setfill('_'), setw(6), r) ); |
| if( s!= "_16/9_") { |
| cerr << s << endl; |
| BOOST_ERROR("width in group context is not handled correctly"); |
| } |
| |
| |
| // options that uses internal alignment : + 0 # |
| s = str( format("%+6d %0#6x %s\n") % 342 % 33 % "ok" ); |
| if( s !=" +342 0x0021 ok\n") |
| BOOST_ERROR("(flags +, 0, or #) formatting result incorrect"); |
| |
| // flags in the format string are not sticky |
| // and hex in argument overrrides type-char d (->decimal) : |
| s = str( format("%2$#4d %|1$4| %|2$#4| %|3$|") |
| % 101 |
| % group(setfill('_'), hex, 2) |
| % 103 ); |
| if(s != "_0x2 101 _0x2 103") |
| BOOST_ERROR("formatting error. (not-restoring state ?)"); |
| |
| |
| |
| // flag '0' is tricky . |
| // left-align cancels '0': |
| s = str( format("%2$0#12X %2$0#-12d %1$0#10d \n") % -20 % 10 ); |
| if( s != "0X000000000A 10 -000000020 \n"){ |
| cerr << s; |
| BOOST_ERROR("formatting error. (flag 0)"); |
| } |
| |
| return 0; |
| } |