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7d89615715
Changes:
* The handling of ctrl-c has been changed to work better under
windows.
* The runtime of the function intPowOvfChk in int_rtl.c has been
reduced to 57% (measured with gcc and valgrind).
* The generation of code in the compiler for the action INT_POW has
been improved. When the base is a negative power of two the
exponentiation is done with a shift instead of a call of intPow
(respectively intPowOvfChk).
* The overflow checking for INT_POW in the compiler has been
improved. When base or exponent is known the overflow checking is
done with inline code and intPow is called instead of intPowOvfChk.
* Documentation comments have been added to bitsetof.s7i
* Tests for ** have been added to chkint.sd7 and chkovf.st7
* The tests for * and *:= in chkovf.st7 have been reorganized.
* An interrupt_flag has been introduced in the interpreter. This flag
is used for exception handling and for signal handling. Exceptions
set interrupt_flag and fail_flag (with the macro set_fail_flag).
Signals set only the interrupt_flag (file sigutl.c). The
interrupt_flag is handled in exec_action (file exec.c).
* The functions signal_name, handle_signals, handle_segv_signal,
handle_term_signal and activate_signal_handlers in sigutl.c have
been improved.
* The functions continue_question, write_curr_position and
show_signal in runerr.c have been improved.
* The functions handle_int_signal, readChar, doGetcFromTerminal,
doGetsFromTerminal, doLineRead, doLineReadFromTerminal, doWordRead,
doWordReadFromTerminal, filGetcChkCtrlC, filGetsChkCtrlC,
filHasNextChkCtrlC, filLineReadChkCtrlC and filWordReadChkCtrlC
have been added to fil_rtl.c. This functions support reading from
a terminal with a check for ctrl*c. This functions are used by the
interpreter (file intlib.c).
* Tracing has been added to functions in int_rtl.c.
* Configuration defines for CTRL_C_SENDS_EOF,
SIGNAL_HANDLER_CAN_DO_IO and INT64TYPE_NO_SUFFIX_BUT_CAST have been
added to makefiles.
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