# Suggestion: Integer#hex **URL:** \ **Category:** Development\ **Created:** [May 31, 2008, 12:13pm UTC](https://www.ruby-forum.com/t/suggestion-integer-hex/139144 "2008-05-31T12:13:47Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Yusuke\_ENDOH](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/c89c15/32.png) [@Yusuke\_ENDOH](https://www.ruby-forum.com/u/Yusuke_ENDOH)\ **Post date:** [May 31, 2008, 12:13pm UTC](https://www.ruby-forum.com/t/suggestion-integer-hex/139144/1 "2008-05-31T12:13:47Z")
e$B1sF#$G$9!#e(B Integer#hex e$B$He(B #oct e$B$rDI2C$9$k$N$O$I$&$G$7$g$&$+!#e(B String#hex e$B$?$A$NH?E\>$G$9!#e(B 10000.hex #=\> “2710” irb e$B$r7W;;5!Be$o$j$K;H$&\>l9g$KJXMx$@$H;W$$$^$9!#e(B 10000.to\_s(16) e$B$O$A$g$C$HD9$9$.$G$9$7!#e(B # Index: numeric.c — numeric.c (revision 16716) +++ numeric.c (working copy) @@ -3042,6 +3042,36 @@ /\* - call-seq: - - ``` int.hex => string ``` - - - - Returns a string of hexadecimal digits; equivalent to int.to\_s(16). - - - - ``` 0.hex #=> "0" ``` - - ``` 10000.hex #=> "2710" ``` - \*/ +static VALUE +int\_hex(VALUE num) +{ - return rb\_funcall(num, rb\_intern(“to\_s”), 1, INT2FIX(16)); +} - +/\* - - call-seq: - - ``` int.oct => string ``` - - - - Returns a string of octal digits; equivalent to int.to\_s(8). - - - - ``` 0.oct #=> "0" ``` - - ``` 10000.oct #=> "23420" ``` - \*/ +static VALUE +int\_oct(VALUE num) +{ - return rb\_funcall(num, rb\_intern(“to\_s”), 1, INT2FIX(8)); +} - +/\* - - call-seq: - ``` fix.zero? => true or false ``` - - Returns `true` if _fix_ is zero. @@ -3163,6 +3193,8 @@ rb\_define\_method(rb\_cInteger, “ceil”, int\_to\_i, 0); rb\_define\_method(rb\_cInteger, “truncate”, int\_to\_i, 0); rb\_define\_method(rb\_cInteger, “round”, int\_round, -1); - rb\_define\_method(rb\_cInteger, “hex”, int\_hex, 0); - rb\_define\_method(rb\_cInteger, “oct”, int\_oct, 0); - - def test\_hex - assert\_equal(“0”, 0.hex) - assert\_equal(“2710”, 10000.hex) - end - - def test\_oct - assert\_equal(“0”, 0.oct) - assert\_equal(“23420”, 10000.oct) - end end ---
**Author:** ![Yusuke\_ENDOH](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/c89c15/32.png) [@Yusuke\_ENDOH](https://www.ruby-forum.com/u/Yusuke_ENDOH)\ **Post date:** [May 31, 2008, 4:05pm UTC](https://www.ruby-forum.com/t/suggestion-integer-hex/139144/2 "2008-05-31T16:05:51Z")
e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B In message “Re: [ruby-dev:34902] Suggestion: Integer#hex” on Sat, 31 May 2008 19:10:48 +0900, “Yusuke ENDOH” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes: |Integer#hex e$B$He(B #oct e$B$rDI2C$9$k$N$O$I$&$G$7$g$&$+!#e(B |String#hex e$B$?$A$NH?E\>$G$9!#e(B | | 10000.hex #=\> “2710” | |irb e$B$r7W;;5!Be$o$j$K;H$&\>l9g$KJXMx$@$H;W$$$^$9!#e(B |10000.to\_s(16) e$B$O$A$g$C$HD9$9$.$G$9$7!#e(B e$BJXMx$@$H$O;W$$$^$9$,!“F1$8L\>A0$GH?BP$NF0:n$r$9$k$N$K$O$+$J$je(B e$BDq93$,$”$j$^$9!#e(B ---
**Author:** ![Yusuke\_ENDOH](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/c89c15/32.png) [@Yusuke\_ENDOH](https://www.ruby-forum.com/u/Yusuke_ENDOH)\ **Post date:** [May 31, 2008, 5:53pm UTC](https://www.ruby-forum.com/t/suggestion-integer-hex/139144/3 "2008-05-31T17:53:18Z")
e$B1sF#$G$9!#e(B 08/05/31 e$B$Ke(B Yukihiro M.[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) e$B$5$s$O=q$-$^$7$?e(B: > |Integer#hex e$B$He(B #oct e$B$rDI2C$9$k$N$O$I$&$G$7$g$&$+!#e(B > |String#hex e$B$?$A$NH?E\>$G$9!#e(B > | > | 10000.hex #=\> “2710” > | > |irb e$B$r7W;;5!Be$o$j$K;H$&\>l9g$KJXMx$@$H;W$$$^$9!#e(B > |10000.to\_s(16) e$B$O$A$g$C$HD9$9$.$G$9$7!#e(B > > e$BJXMx$@$H$O;W$$$^$9$,!“F1$8L\>A0$GH?BP$NF0:n$r$9$k$N$K$O$+$J$je(B > e$BDq93$,$”$j$^$9!#e(B hex e$B$H$$$&%a%=%C%IL\>$J$i!“e(Bhex e$B$^$?$Oe(B hex e$B$N$h$&$J$b$N$,e(B e$BJV$C$F$/$k$3$H$r4|BT$7$^$9!#$J$N$G!”$I$A$i$+$H$$$&$He(B String#hex e$B$NF0:n$h$je(B Integer#hex e$B$NF0:n$NJ}$,@5Ev$@$He(B e$B46$8$^$9!#e(B e$B8\_49@-$NLdBj$,$"$k$N$Ge(B String#hex e$B$rJQ99$9$k$3$H$OL5M}e(B e$B$@$H;W$$$^$9$,!"e(BInteger#hex e$B$N\>c32$K$J$k$N$O$I$&$+$He(B e$B;W$$$^$9!#e(B