lang/seed7: update to 05_20180821

20180821:

• In fil_dos.c in the function setupFiles the handling of ctrl-c has been improved such that ctrl-c is sent immediate (without the need to press return afterwards). Additionally redirected stdin, stdout and stderr files are switched to binary mode now.
• In the compiler (in comp/const.s7i) the actions BIN_XOR, ENU_ICONV2, ENU_ORD2, INT_ICONV1 and INT_ICONV3 have been added to the list of special actions.
• The batch files bin/call_gcc.bat and bin/call_ar.bat have been improved to set environment variables with the command 'set'. This is necessary to execute them successfully under Wine.
• The description of log, log10 and log2 in the manual has been improved.
• In flt_rtl.c the functions fltLog, fltLog10 and fltLog2 have been added. This functions are based on the original functions log(), log10() and log2() and work according to IEEE 754.
• The configuration values LOG_FUNCTION_OKAY, LOG10_FUNCTION_OKAY and LOG2_FUNCTION_OKAY have been added to cc_conf.s7i.
• The configuration value HAS_LOG2 has been removed from cc_conf.s7i.
• The compiler (s7c) has been improved to use the functions fltLog, fltLog10 and fltLog2.
• In comp/inline.s7i the functions push_inline_func_param, pop_inline_func_param, push_inline_proc_param and pop_inline_proc_param have been improved to support inline functions with 'attr' parameters.
• The example program diff7.sd7 has been improved.
• Documentation comments have been improved in math.s7i and tar.s7i.
• In chkflt.sd7 the tests for the operators 'parse' and 'sci' and for the function str() have been improved.
• The program chkccomp.c has been improved to define the macros POW_OF_NEGATIVE_OKAY, LOG_OF_NAN_OKAY, LOG_OF_ZERO_OKAY, LOG_OF_NEGATIVE_OKAY, LOG10_OF_NAN_OKAY, LOG10_OF_ZERO_OKAY, LOG10_OF_NEGATIVE_OKAY, LOG2_OF_NAN_OKAY, LOG2_OF_ZERO_OKAY, LOG2_OF_NEGATIVE_OKAY, MEMCMP_RETURNS_SIGNUM and WMEMCMP_RETURNS_SIGNUM.
• In chkccomp.c the function determineFseekFunctions has been improved to make tests that actually use fseek() and ftell().
• Calls of logFunction have been added in cmd_rtl.c, str_rtl.c, strlib.c and striutl.c.
• In bstlib.c the function bst_cmp() has been improved to be based on bstCmp().
• The functions strCompare(), str_cmp() and bstCmp() have been improved to use different code depending on MEMCMP_RETURNS_SIGNUM and WMEMCMP_RETURNS_SIGNUM.
• In s7c.sd7 the function canTakeAddress has been improved to return FALSE for a CONSTENUMOBJECT.