lang/seed7: update to 05_20180107

20180107

• Interpreter and compiler have been improved to allow support for case statements with hashsets in the when parts. This allows e.g. case statements with string, bigInteger, type and other expressions.
• Several discrepancies between s7 and s7c have been fixed. Many thanks go to "tipd bmp" who sent a example programs to show the discrepancies. Thanks also for finding a bug in the manual.
• The following type conversion functions from integer have been introduced: bigInteger(), bigRational(), bitset(), boolean(), char(), float(), rational() and complex(). This fits to the existing conversion functions bin32() and bin64().
• The files bigrat.s7i, filesys.s7i, int_act.s7i, s7c.sd7, chkdb.sd7, dnafight.sd7, printpi1.sd7, printpi2.sd7 and savehd7.sd7 have been adjusted to use bigInteger() instead of the conv operator to convert an integer to a bigInteger.
• The function bigRational, which converts a string to a bigRational number, has been added to bigrat.s7i.
• The function rational, which converts a string to a rational number, has been added to rational.s7i.
• In rational.s7i the operator 'parse' has been improved to convert a string with a decimal number to a rational number.
• The functions float2Bits and bits2Float in bin32.s7i and bin64.s7i are deprecated and will be removed in a future version. The functions bin32(), bin64() and float() can be used instead to convert between float and bits in IEEE 754 representation.
• The programs bas7.sd7 and chkbin.sd7 have been changed to use the functions bin32(), bin64() and float() instead of float2Bits and bits2Float.
• Definitions of the operators |:= and &:= have been added to hashsetof.s7i.
• The library seed7_05.s7i has been improved to support case statements which consist just of an otherwise part.
• The program chkprc.sd7 has been improved to check integer and char case statements with otherwise part.
• The program chkprc.sd7 has been improved to check string, bigInteger and float case statements with and without otherwise part.
• The program chkbig.sd7 has been improved to check the bigInteger() conversion function.
• The program chkflt.sd7 has been improved to check the float() conversion function.
• Interpreter and compiler have been improved to support the actions BIG_ICONV1, BIG_ICONV3, BLN_ICONV1, BLN_ICONV3, CHR_ICONV1, CHR_ICONV3, FLT_ICONV1, FLT_ICONV3, SET_ICONV1, SET_ICONV3 and REF_ALLOC_VAR.
• The handling of CONSTENUMOBJECT and VARENUMOBJECT objects in s7c.sd7 has been improved.
• The functions initCaseLabelsOfWhen, initCaseLabelsOfCase and initCaseLabels have been added to s7c.sd7.