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digitalmars.D.bugs - Bool {post,pre}{inc,dec}-operators

reply Oskar Linde <oskar.lindeREM OVEgmail.com> writes:
bool a = 0;
--a;
assert(a == false || a == true); // FAILS(!) (a is set to 255)

bool t = true;
bool b = t+t;
assert(b == true); //OK
bool c = 0;
c++;
c++;
assert(c == true || c == false); // FAILS

But:

bool d = 0;
d += 2;
assert(d == true || d == false); // OK

/Oskar
Feb 28 2006
next sibling parent reply Kyle Furlong <kylefurlong gmail.com> writes:
Oskar Linde wrote:

 bool a = 0;
 --a;
 assert(a == false || a == true); // FAILS(!) (a is set to 255)
 
 bool t = true;
 bool b = t+t;
 assert(b == true); //OK
 bool c = 0;
 c++;
 c++;
 assert(c == true || c == false); // FAILS
 
 But:
 
 bool d = 0;
 d += 2;
 assert(d == true || d == false); // OK
 
 /Oskar


This makes me sick to my stomach. I thought D was a beautiful language, but now
I dont know.
Feb 28 2006
parent reply Jeremy <Jeremy_member pathlink.com> writes:
In article <du2qrk$61u$2 digitaldaemon.com>, Kyle Furlong says...

Oskar Linde wrote:

 bool a = 0;
 --a;
 assert(a == false || a == true); // FAILS(!) (a is set to 255)
 
 bool t = true;
 bool b = t+t;
 assert(b == true); //OK
 bool c = 0;
 c++;
 c++;
 assert(c == true || c == false); // FAILS
 
 But:
 
 bool d = 0;
 d += 2;
 assert(d == true || d == false); // OK
 
 /Oskar


This makes me sick to my stomach. I thought D was a beautiful language, but now
I dont know.


bools were *just* added... I'm sure Walter will fix these things -- don't go
degrading the entire language because a brand new feature in a beta release is
buggy. Keep up the good work... anyway, how often do you get to yell directly to
the language's creator to get it made just the way you want it? :-D

- Jeremy
Mar 01 2006
parent reply Kyle Furlong <kylefurlong gmail.com> writes:
Jeremy wrote:

 In article <du2qrk$61u$2 digitaldaemon.com>, Kyle Furlong says...

 Oskar Linde wrote:

 bool a = 0;
 --a;
 assert(a == false || a == true); // FAILS(!) (a is set to 255)

 bool t = true;
 bool b = t+t;
 assert(b == true); //OK
 bool c = 0;
 c++;
 c++;
 assert(c == true || c == false); // FAILS

 But:

 bool d = 0;
 d += 2;
 assert(d == true || d == false); // OK

 /Oskar


 This makes me sick to my stomach. I thought D was a beautiful language, but
now I dont know.


 
 bools were *just* added... I'm sure Walter will fix these things -- don't go
 degrading the entire language because a brand new feature in a beta release is
 buggy. Keep up the good work... anyway, how often do you get to yell directly
to
 the language's creator to get it made just the way you want it? :-D
 
 - Jeremy


Here's the thing though: Even if I and others yell and scream and tear our hair
out, Walter will implement it how he wants 
anyways. And yes, I sill think D is the best language around. (D the Language,
not D the Framework)
Mar 01 2006
parent reply Jeremy <Jeremy_member pathlink.com> writes:
In article <du4sp7$1e50$2 digitaldaemon.com>, Kyle Furlong says...

Jeremy wrote:

 In article <du2qrk$61u$2 digitaldaemon.com>, Kyle Furlong says...

 Oskar Linde wrote:

 bool a = 0;
 --a;
 assert(a == false || a == true); // FAILS(!) (a is set to 255)

 bool t = true;
 bool b = t+t;
 assert(b == true); //OK
 bool c = 0;
 c++;
 c++;
 assert(c == true || c == false); // FAILS

 But:

 bool d = 0;
 d += 2;
 assert(d == true || d == false); // OK

 /Oskar









 This makes me sick to my stomach. I thought D was a beautiful language, but
now I dont know.


 
 bools were *just* added... I'm sure Walter will fix these things -- don't go
 degrading the entire language because a brand new feature in a beta release is
 buggy. Keep up the good work... anyway, how often do you get to yell directly
to
 the language's creator to get it made just the way you want it? :-D
 
 - Jeremy


Here's the thing though: Even if I and others yell and scream and tear our hair
out, Walter will implement it how he wants 
anyways. And yes, I sill think D is the best language around. (D the Language,
not D the Framework)


Hrm.. I'm rather a D newbie :-D but it seems to be just what I want (given some
time for things to become stable anyway). SO, I don't know how stubborn he is
(or not) -- but this bool thing seems pretty crazy to leave as-is.. I couldn't
imagine Walter not fixing this.

What's the difference between the language / framework..? Framework being the
phobos library?

Jeremy
Mar 01 2006
parent reply Kyle Furlong <kylefurlong gmail.com> writes:
Jeremy wrote:

 In article <du4sp7$1e50$2 digitaldaemon.com>, Kyle Furlong says...

 Jeremy wrote:

 In article <du2qrk$61u$2 digitaldaemon.com>, Kyle Furlong says...

 Oskar Linde wrote:

 bool a = 0;
 --a;
 assert(a == false || a == true); // FAILS(!) (a is set to 255)

 bool t = true;
 bool b = t+t;
 assert(b == true); //OK
 bool c = 0;
 c++;
 c++;
 assert(c == true || c == false); // FAILS

 But:

 bool d = 0;
 d += 2;
 assert(d == true || d == false); // OK

 /Oskar








 

 This makes me sick to my stomach. I thought D was a beautiful language, but
now I dont know.


 bools were *just* added... I'm sure Walter will fix these things -- don't go
 degrading the entire language because a brand new feature in a beta release is
 buggy. Keep up the good work... anyway, how often do you get to yell directly
to
 the language's creator to get it made just the way you want it? :-D

 - Jeremy


 Here's the thing though: Even if I and others yell and scream and tear our
hair out, Walter will implement it how he wants 
 anyways. And yes, I sill think D is the best language around. (D the Language,
not D the Framework)


 
 Hrm.. I'm rather a D newbie :-D but it seems to be just what I want (given some
 time for things to become stable anyway). SO, I don't know how stubborn he is
 (or not) -- but this bool thing seems pretty crazy to leave as-is.. I couldn't
 imagine Walter not fixing this.
 
 What's the difference between the language / framework..? Framework being the
 phobos library?
 
 Jeremy


The D language is a specification for a high level programming language. The D
Framework is the compilers, debuggers, IDE's, and 
command line tools, libraries, or lack there of, which help with writing,
building, debugging, and maintaining programs written 
in the D language.

IMHO, the D language is a beautiful thing, however the D framework is very much
lacking as compared to Java, .NET, even C++.
Mar 01 2006
parent Jeremy <Jeremy_member pathlink.com> writes:
In article <du5fi2$28c7$1 digitaldaemon.com>, Kyle Furlong says...

Jeremy wrote:

 In article <du4sp7$1e50$2 digitaldaemon.com>, Kyle Furlong says...

 Jeremy wrote:

 In article <du2qrk$61u$2 digitaldaemon.com>, Kyle Furlong says...

 Oskar Linde wrote:

 bool a = 0;
 --a;
 assert(a == false || a == true); // FAILS(!) (a is set to 255)

 bool t = true;
 bool b = t+t;
 assert(b == true); //OK
 bool c = 0;
 c++;
 c++;
 assert(c == true || c == false); // FAILS

 But:

 bool d = 0;
 d += 2;
 assert(d == true || d == false); // OK

 /Oskar








 

 This makes me sick to my stomach. I thought D was a beautiful language, but
now I dont know.


 bools were *just* added... I'm sure Walter will fix these things -- don't go
 degrading the entire language because a brand new feature in a beta release is
 buggy. Keep up the good work... anyway, how often do you get to yell directly
to
 the language's creator to get it made just the way you want it? :-D

 - Jeremy


 Here's the thing though: Even if I and others yell and scream and tear our
hair out, Walter will implement it how he wants 
 anyways. And yes, I sill think D is the best language around. (D the Language,
not D the Framework)


 
 Hrm.. I'm rather a D newbie :-D but it seems to be just what I want (given some
 time for things to become stable anyway). SO, I don't know how stubborn he is
 (or not) -- but this bool thing seems pretty crazy to leave as-is.. I couldn't
 imagine Walter not fixing this.
 
 What's the difference between the language / framework..? Framework being the
 phobos library?
 
 Jeremy


The D language is a specification for a high level programming language. The D
Framework is the compilers, debuggers, IDE's, and 
command line tools, libraries, or lack there of, which help with writing,
building, debugging, and maintaining programs written 
in the D language.

IMHO, the D language is a beautiful thing, however the D framework is very much
lacking as compared to Java, .NET, even C++.


It is lacking... but this is mainly because it is so new, and that the language
isn't very stable yet. Once a good IDE comes out for both Windows and Linux
(LEDs port to Windows please?) and the compiler reaches a v1.0 state (with
bool's fixed) -- I believe things will pick up. I also hope library support
picks up, integrate DDL to help that out into the standard?

Jeremy
Mar 01 2006
prev sibling parent Thomas Kuehne <thomas-dloop kuehne.cn> writes:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Oskar Linde schrieb am 2006-02-28:

 bool a = 0;
 --a;
 assert(a == false || a == true); // FAILS(!) (a is set to 255)

 bool t = true;
 bool b = t+t;
 assert(b == true); //OK
 bool c = 0;
 c++;
 c++;
 assert(c == true || c == false); // FAILS

 But:

 bool d = 0;
 d += 2;
 assert(d == true || d == false); // OK


Added to DStress as
http://dstress.kuehne.cn/run/o/opAdd_08_A.d
http://dstress.kuehne.cn/run/o/opAdd_08_B.d
http://dstress.kuehne.cn/run/o/opAdd_08_C.d
http://dstress.kuehne.cn/run/o/opAdd_08_D.d
http://dstress.kuehne.cn/run/o/opCom_01_A.d
http://dstress.kuehne.cn/run/o/opCom_01_B.d
http://dstress.kuehne.cn/run/o/opNeg_05_A.d
http://dstress.kuehne.cn/run/o/opNeg_05_B.d
http://dstress.kuehne.cn/run/o/opPos_05_A.d
http://dstress.kuehne.cn/run/o/opPos_05_B.d
http://dstress.kuehne.cn/run/o/opPostDec_12_A.d
http://dstress.kuehne.cn/run/o/opPostDec_12_B.d
http://dstress.kuehne.cn/run/o/opPostInc_12_A.d
http://dstress.kuehne.cn/run/o/opPostInc_12_B.d
http://dstress.kuehne.cn/run/o/opPreDec_12_A.d
http://dstress.kuehne.cn/run/o/opPreDec_12_B.d
http://dstress.kuehne.cn/run/o/opPreInc_12_A.d
http://dstress.kuehne.cn/run/o/opPreInc_12_B.d
http://dstress.kuehne.cn/run/o/opSub_08_A.d
http://dstress.kuehne.cn/run/o/opSub_08_B.d
http://dstress.kuehne.cn/run/o/opSub_08_C.d
http://dstress.kuehne.cn/run/o/opSub_08_D.d

Thomas



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Mar 01 2006