17 auto writer = appender!string(); 17 auto writer = appender!string(); 18 formattedWrite(writer, fmt, params); 18 formattedWrite(writer, fmt, params); 19 return writer.data; 19 return writer.data; 20 } 20 } 21 21 22 unittest 22 unittest 23 { 23 { 24 assert( sprintf!"%s == %d"("1+2", 3) == "1+2 == 3" ); < 25 assert( sprintf!"%s == %04d"("1+2", 3) == "1+2 == 0003" ); | 24 assert_eq( sprintf!"%s == %04d"("1+2", 3), "1+2 == 0003" ); > 25 assert_eq( sprintf!"%2$s == %1$s"("1+2", 5, 8), "5 == 1+2" ); > 26 assert_throw!Error( sprintf!"%s%s"(1) ); 26 } 27 } 27 28 28 /// Create an exception with automatically completed filename and lineno informa 29 /// Create an exception with automatically completed filename and lineno informa 29 30 30 auto genex(ExceptionType, string fn=__FILE__, int ln=__LINE__, T...)(T params) 31 auto genex(ExceptionType, string fn=__FILE__, int ln=__LINE__, T...)(T params) 31 { 32 { 32 static if( T.length > 0 && is(T[$-1] : Throwable) ) 33 static if( T.length > 0 && is(T[$-1] : Throwable) )