[#43713] Re: 演算子の優先順位(was: Re: irb と python のバグ?) — "きむらこういち" <hogemuta@...>

木村です。

20 messages 2007/07/14
[#43715] Re: 演算子の優先順位(was: Re: irb — TunTun-m <tntn@...> 2007/07/14

bc では次式の結果は 0.81 ではなく 0.8 になります。

[ruby-list:43689] Re: rubyをソースからコンパイルしての質問

From: "Nobuyuki Inaba" <nobuyuki.inaba@...>
Date: 2007-07-09 06:23:54 UTC
List: ruby-list #43689
いなばです。
いろいろすみません。
==============================================================
have_library: checking for tgetnum() in -lncurses... -------------------- yes

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic     -lruby-static
-lncurses  -ldl -lcrypt -lm   -lc"
conftest.c: In function 't':
conftest.c:3: error: 'tgetnum' undeclared (first use in this function)
conftest.c:3: error: (Each undeclared identifier is reported only once
conftest.c:3: error: for each function it appears in.)
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void ((*)()))tgetnum; return 0; }
/* end */

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic     -lruby-static
-lncurses  -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { tgetnum(); return 0; }
/* end */

--------------------

have_header: checking for readline/readline.h... -------------------- yes

"gcc -E -I../.. -I../../. -I../.././ext/readline  -g -O2  conftest.c
-o conftest.i"
checked program was:
/* begin */
1: #include <readline/readline.h>
/* end */

--------------------

have_header: checking for readline/history.h... -------------------- yes

"gcc -E -I../.. -I../../. -I../.././ext/readline  -g -O2  conftest.c
-o conftest.i"
checked program was:
/* begin */
1: #include <readline/history.h>
/* end */

--------------------

have_library: checking for readline() in -lreadline... -------------------- yes

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lncurses
-lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
conftest.c: In function 't':
conftest.c:3: error: 'readline' undeclared (first use in this function)
conftest.c:3: error: (Each undeclared identifier is reported only once
conftest.c:3: error: for each function it appears in.)
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void ((*)()))readline; return 0; }
/* end */

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lncurses
-lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { readline(); return 0; }
/* end */

--------------------

have_var: checking for rl_filename_completion_function in
stdio.h,readline/readline.h,readline/history.h... --------------------
yes

"gcc -I../.. -I../../. -I../.././ext/readline  -g -O2   -c conftest.c"
checked program was:
/* begin */
1: #include <stdio.h>
2: #include <readline/readline.h>
3: #include <readline/history.h>
4:
5: /*top*/
6: int main() { return 0; }
7: int t() { const volatile void *volatile p; p = (void
*)&rl_filename_completion_function; return 0; }
/* end */

--------------------

have_var: checking for rl_username_completion_function in
stdio.h,readline/readline.h,readline/history.h... --------------------
yes

"gcc -I../.. -I../../. -I../.././ext/readline  -g -O2   -c conftest.c"
checked program was:
/* begin */
1: #include <stdio.h>
2: #include <readline/readline.h>
3: #include <readline/history.h>
4:
5: /*top*/
6: int main() { return 0; }
7: int t() { const volatile void *volatile p; p = (void
*)&rl_username_completion_function; return 0; }
/* end */

--------------------

have_var: checking for rl_completion_matches in
stdio.h,readline/readline.h,readline/history.h... --------------------
yes

"gcc -I../.. -I../../. -I../.././ext/readline  -g -O2   -c conftest.c"
checked program was:
/* begin */
1: #include <stdio.h>
2: #include <readline/readline.h>
3: #include <readline/history.h>
4:
5: /*top*/
6: int main() { return 0; }
7: int t() { const volatile void *volatile p; p = (void
*)&rl_completion_matches; return 0; }
/* end */

--------------------

have_var: checking for rl_deprep_term_function in
stdio.h,readline/readline.h,readline/history.h... --------------------
yes

"gcc -I../.. -I../../. -I../.././ext/readline  -g -O2   -c conftest.c"
checked program was:
/* begin */
1: #include <stdio.h>
2: #include <readline/readline.h>
3: #include <readline/history.h>
4:
5: /*top*/
6: int main() { return 0; }
7: int t() { const volatile void *volatile p; p = (void
*)&rl_deprep_term_function; return 0; }
/* end */

--------------------

have_var: checking for rl_completion_append_character in
stdio.h,readline/readline.h,readline/history.h... --------------------
yes

"gcc -I../.. -I../../. -I../.././ext/readline  -g -O2   -c conftest.c"
checked program was:
/* begin */
1: #include <stdio.h>
2: #include <readline/readline.h>
3: #include <readline/history.h>
4:
5: /*top*/
6: int main() { return 0; }
7: int t() { const volatile void *volatile p; p = (void
*)&rl_completion_append_character; return 0; }
/* end */

--------------------

have_var: checking for rl_basic_word_break_characters in
stdio.h,readline/readline.h,readline/history.h... --------------------
yes

"gcc -I../.. -I../../. -I../.././ext/readline  -g -O2   -c conftest.c"
checked program was:
/* begin */
1: #include <stdio.h>
2: #include <readline/readline.h>
3: #include <readline/history.h>
4:
5: /*top*/
6: int main() { return 0; }
7: int t() { const volatile void *volatile p; p = (void
*)&rl_basic_word_break_characters; return 0; }
/* end */

--------------------

have_var: checking for rl_completer_word_break_characters in
stdio.h,readline/readline.h,readline/history.h... --------------------
yes

"gcc -I../.. -I../../. -I../.././ext/readline  -g -O2   -c conftest.c"
checked program was:
/* begin */
1: #include <stdio.h>
2: #include <readline/readline.h>
3: #include <readline/history.h>
4:
5: /*top*/
6: int main() { return 0; }
7: int t() { const volatile void *volatile p; p = (void
*)&rl_completer_word_break_characters; return 0; }
/* end */

--------------------

have_var: checking for rl_basic_quote_characters in
stdio.h,readline/readline.h,readline/history.h... --------------------
yes

"gcc -I../.. -I../../. -I../.././ext/readline  -g -O2   -c conftest.c"
checked program was:
/* begin */
1: #include <stdio.h>
2: #include <readline/readline.h>
3: #include <readline/history.h>
4:
5: /*top*/
6: int main() { return 0; }
7: int t() { const volatile void *volatile p; p = (void
*)&rl_basic_quote_characters; return 0; }
/* end */

--------------------

have_var: checking for rl_completer_quote_characters in
stdio.h,readline/readline.h,readline/history.h... --------------------
yes

"gcc -I../.. -I../../. -I../.././ext/readline  -g -O2   -c conftest.c"
checked program was:
/* begin */
1: #include <stdio.h>
2: #include <readline/readline.h>
3: #include <readline/history.h>
4:
5: /*top*/
6: int main() { return 0; }
7: int t() { const volatile void *volatile p; p = (void
*)&rl_completer_quote_characters; return 0; }
/* end */

--------------------

have_var: checking for rl_filename_quote_characters in
stdio.h,readline/readline.h,readline/history.h... --------------------
yes

"gcc -I../.. -I../../. -I../.././ext/readline  -g -O2   -c conftest.c"
checked program was:
/* begin */
1: #include <stdio.h>
2: #include <readline/readline.h>
3: #include <readline/history.h>
4:
5: /*top*/
6: int main() { return 0; }
7: int t() { const volatile void *volatile p; p = (void
*)&rl_filename_quote_characters; return 0; }
/* end */

--------------------

have_var: checking for rl_attempted_completion_over in
stdio.h,readline/readline.h,readline/history.h... --------------------
yes

"gcc -I../.. -I../../. -I../.././ext/readline  -g -O2   -c conftest.c"
checked program was:
/* begin */
1: #include <stdio.h>
2: #include <readline/readline.h>
3: #include <readline/history.h>
4:
5: /*top*/
6: int main() { return 0; }
7: int t() { const volatile void *volatile p; p = (void
*)&rl_attempted_completion_over; return 0; }
/* end */

--------------------

have_var: checking for rl_library_version in
stdio.h,readline/readline.h,readline/history.h... --------------------
yes

"gcc -I../.. -I../../. -I../.././ext/readline  -g -O2   -c conftest.c"
checked program was:
/* begin */
1: #include <stdio.h>
2: #include <readline/readline.h>
3: #include <readline/history.h>
4:
5: /*top*/
6: int main() { return 0; }
7: int t() { const volatile void *volatile p; p = (void
*)&rl_library_version; return 0; }
/* end */

--------------------

have_var: checking for rl_event_hook in
stdio.h,readline/readline.h,readline/history.h... --------------------
yes

"gcc -I../.. -I../../. -I../.././ext/readline  -g -O2   -c conftest.c"
checked program was:
/* begin */
1: #include <stdio.h>
2: #include <readline/readline.h>
3: #include <readline/history.h>
4:
5: /*top*/
6: int main() { return 0; }
7: int t() { const volatile void *volatile p; p = (void
*)&rl_event_hook; return 0; }
/* end */

--------------------

have_func: checking for rl_cleanup_after_signal()... -------------------- yes

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lreadline
-lncurses  -lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
conftest.c: In function 't':
conftest.c:3: error: 'rl_cleanup_after_signal' undeclared (first use
in this function)
conftest.c:3: error: (Each undeclared identifier is reported only once
conftest.c:3: error: for each function it appears in.)
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void
((*)()))rl_cleanup_after_signal; return 0; }
/* end */

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lreadline
-lncurses  -lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { rl_cleanup_after_signal(); return 0; }
/* end */

--------------------

have_func: checking for rl_clear_signals()... -------------------- yes

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lreadline
-lncurses  -lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
conftest.c: In function 't':
conftest.c:3: error: 'rl_clear_signals' undeclared (first use in this function)
conftest.c:3: error: (Each undeclared identifier is reported only once
conftest.c:3: error: for each function it appears in.)
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void
((*)()))rl_clear_signals; return 0; }
/* end */

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lreadline
-lncurses  -lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { rl_clear_signals(); return 0; }
/* end */

--------------------

have_func: checking for rl_vi_editing_mode()... -------------------- yes

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lreadline
-lncurses  -lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
conftest.c: In function 't':
conftest.c:3: error: 'rl_vi_editing_mode' undeclared (first use in
this function)
conftest.c:3: error: (Each undeclared identifier is reported only once
conftest.c:3: error: for each function it appears in.)
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void
((*)()))rl_vi_editing_mode; return 0; }
/* end */

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lreadline
-lncurses  -lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { rl_vi_editing_mode(); return 0; }
/* end */

--------------------

have_func: checking for rl_emacs_editing_mode()... -------------------- yes

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lreadline
-lncurses  -lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
conftest.c: In function 't':
conftest.c:3: error: 'rl_emacs_editing_mode' undeclared (first use in
this function)
conftest.c:3: error: (Each undeclared identifier is reported only once
conftest.c:3: error: for each function it appears in.)
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void
((*)()))rl_emacs_editing_mode; return 0; }
/* end */

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lreadline
-lncurses  -lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { rl_emacs_editing_mode(); return 0; }
/* end */

--------------------

have_func: checking for rl_clear_signals()... -------------------- yes

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lreadline
-lncurses  -lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
conftest.c: In function 't':
conftest.c:3: error: 'rl_clear_signals' undeclared (first use in this function)
conftest.c:3: error: (Each undeclared identifier is reported only once
conftest.c:3: error: for each function it appears in.)
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void
((*)()))rl_clear_signals; return 0; }
/* end */

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lreadline
-lncurses  -lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { rl_clear_signals(); return 0; }
/* end */

--------------------

have_func: checking for replace_history_entry()... -------------------- yes

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lreadline
-lncurses  -lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
conftest.c: In function 't':
conftest.c:3: error: 'replace_history_entry' undeclared (first use in
this function)
conftest.c:3: error: (Each undeclared identifier is reported only once
conftest.c:3: error: for each function it appears in.)
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void
((*)()))replace_history_entry; return 0; }
/* end */

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lreadline
-lncurses  -lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { replace_history_entry(); return 0; }
/* end */

--------------------

have_func: checking for remove_history()... -------------------- yes

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lreadline
-lncurses  -lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
conftest.c: In function 't':
conftest.c:3: error: 'remove_history' undeclared (first use in this function)
conftest.c:3: error: (Each undeclared identifier is reported only once
conftest.c:3: error: for each function it appears in.)
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void ((*)()))remove_history;
return 0; }
/* end */

"gcc -o conftest -I../.. -I../../. -I../.././ext/readline  -g -O2
conftest.c  -L'../..'  -rdynamic -Wl,-export-dynamic    -lreadline
-lncurses  -lruby-static -lreadline -lncurses  -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { remove_history(); return 0; }
/* end */

--------------------

==============================================================
以上のようになっています。

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