Hi,
I know that some granddaddy-level C++ compiler can compile C++ code
into a C intermediate. Apart from that, however, I can not find any
modern compiler to do that. And in fact, I think, this factor is very
pragmatical for a C programmer to learn Java more effectively.
Any one can give me some information on that ? Tools, compilers or
other methods applicable are all attractive to me. But where to get
them?
Thanks.
16  2745  Bu*******@hotma il.com wrote:
Hi,
I know that some granddaddy-level C++ compiler can compile C++ code
into a C intermediate. Apart from that, however, I can not find any
modern compiler to do that. And in fact, I think, this factor is very
pragmatical for a C programmer to learn Java more effectively.
How can a tool that converts C++ to C help a C programmer to learn Java
more effectively?
--
Ian Collins.
On Sun, 04 Mar 2007 22:32:33 +1300, Ian Collins <ia******@hotma il.com>
wrote:
>Bu*******@hotm ail.com wrote:
>Hi,
I know that some granddaddy-level C++ compiler can compile C++ code
into a C intermediate. Apart from that, however, I can not find any
modern compiler to do that. And in fact, I think, this factor is very
pragmatical for a C programmer to learn Java more effectively.
How can a tool that converts C++ to C help a C programmer to learn Java
more effectively?
Oh, what I wrote is not clear indeed. Well, what I mean is that I hope
to get a tool that can translate or compile Java/C++ code into C code,
just like the old CFront did. I think this would be meaningful and
helpful for me to dig into the deep implementation mechanism of C++ or
Java through reading C code. Bu*******@hotma il.com wrote:
Hi,
I know that some granddaddy-level C++ compiler can compile C++ code
into a C intermediate. Apart from that, however, I can not find any
modern compiler to do that. And in fact, I think, this factor is very
pragmatical for a C programmer to learn Java more effectively.
Any one can give me some information on that ? Tools, compilers or
other methods applicable are all attractive to me. But where to get
them?
Thanks.
Why do you want to do this, particularly for learning Java.
PS. I don't think any extant tool does what you want.
On 4 Mar 2007 02:03:21 -0800, "santosh" <sa*********@gm ail.comwrote:
>
Bu*******@hotm ail.com wrote:
>Hi,
I know that some granddaddy-level C++ compiler can compile C++ code
into a C intermediate. Apart from that, however, I can not find any
modern compiler to do that. And in fact, I think, this factor is very
pragmatical for a C programmer to learn Java more effectively.
Any one can give me some information on that ? Tools, compilers or
other methods applicable are all attractive to me. But where to get
them?
Thanks.
Why do you want to do this, particularly for learning Java.
PS. I don't think any extant tool does what you want.
Oh, what I wrote is not clear indeed. Well, what I mean is that I hope
to get a tool that can translate or compile Java/C++ code into C code,
just like the old CFront did. I think this would be meaningful and
helpful for me to dig into the deep implementation mechanism of C++ or
Java through reading C code.
Bunny....@hotma il.com wrote:
On 4 Mar 2007 02:03:21 -0800, "santosh" <sa*********@gm ail.comwrote:
Bu*******@hotma il.com wrote:
Hi,
I know that some granddaddy-level C++ compiler can compile C++ code
into a C intermediate. Apart from that, however, I can not find any
modern compiler to do that. And in fact, I think, this factor is very
pragmatical for a C programmer to learn Java more effectively.
Any one can give me some information on that ? Tools, compilers or
other methods applicable are all attractive to me. But where to get
them?
Thanks.
Why do you want to do this, particularly for learning Java.
PS. I don't think any extant tool does what you want.
Oh, what I wrote is not clear indeed. Well, what I mean is that I hope
to get a tool that can translate or compile Java/C++ code into C code,
just like the old CFront did. I think this would be meaningful and
helpful for me to dig into the deep implementation mechanism of C++ or
Java through reading C code.
Hmm, I think you're off on a wild goose chase. If you want to
understand how C++ and Java programs are compiled and how their
runtime support is implemented, you'll have to understand their
standards, the source code of a conforming implementation and it's
accompanying libraries, not to mention the characteristics of the
target machine architecture.
Simply reading a source translation will get you nowhere, even if you
can find a tool to do that.
On 4 Mar 2007 02:15:52 -0800, "santosh" <sa*********@gm ail.comwrote:
>Bunny....@hotm ail.com wrote:
>On 4 Mar 2007 02:03:21 -0800, "santosh" <sa*********@gm ail.comwrote:
>
Bu*******@hotm ail.com wrote:
Hi,
I know that some granddaddy-level C++ compiler can compile C++ code
into a C intermediate. Apart from that, however, I can not find any
modern compiler to do that. And in fact, I think, this factor is very
pragmatical for a C programmer to learn Java more effectively.
Any one can give me some information on that ? Tools, compilers or
other methods applicable are all attractive to me. But where to get
them?
Thanks.
Why do you want to do this, particularly for learning Java.
PS. I don't think any extant tool does what you want.
Oh, what I wrote is not clear indeed. Well, what I mean is that I hope
to get a tool that can translate or compile Java/C++ code into C code,
just like the old CFront did. I think this would be meaningful and
helpful for me to dig into the deep implementation mechanism of C++ or
Java through reading C code.
Hmm, I think you're off on a wild goose chase. If you want to
understand how C++ and Java programs are compiled and how their
runtime support is implemented, you'll have to understand their
standards, the source code of a conforming implementation and it's
accompanying libraries, not to mention the characteristics of the
target machine architecture.
Simply reading a source translation will get you nowhere, even if you
can find a tool to do that.
Yes, it is really a great job to understand every aspect of a big
language like C++ or Java, however, what I care the most is its
runtime characteristics instead of their compilers or even the whole
language systems. I use Assembly language to study C and thus have
achieved a very good undestanding of the C runtime mechanism. So, I
wonder if there is also a similar way to analyze C++ or Java. In my
opinion, that is really a short-cut. Bu*******@hotma il.com wrote:
On 4 Mar 2007 02:15:52 -0800, "santosh" <sa*********@gm ail.comwrote:
>>
Simply reading a source translation will get you nowhere, even if you
can find a tool to do that.
Yes, it is really a great job to understand every aspect of a big
language like C++ or Java, however, what I care the most is its
runtime characteristics instead of their compilers or even the whole
language systems. I use Assembly language to study C and thus have
achieved a very good undestanding of the C runtime mechanism. So, I
wonder if there is also a similar way to analyze C++ or Java. In my
opinion, that is really a short-cut.
No, it isn't. If you understand an assembler, there is a fairly clear
relationship with unoptimised C.
The same is not true with C and C++.
--
Ian Collins. Bu*******@hotma il.com wrote:
On 4 Mar 2007 02:15:52 -0800, "santosh" <sa*********@gm ail.comwrote:
Bunny....@hotma il.com wrote:
On 4 Mar 2007 02:03:21 -0800, "santosh" <sa*********@gm ail.comwrote:
Bu*******@hotma il.com wrote:
Hi,
I know that some granddaddy-level C++ compiler can compile C++ code
into a C intermediate. Apart from that, however, I can not find any
modern compiler to do that. And in fact, I think, this factor is very
pragmatical for a C programmer to learn Java more effectively.
Any one can give me some information on that ? Tools, compilers or
other methods applicable are all attractive to me. But where to get
them?
Thanks.
Why do you want to do this, particularly for learning Java.
PS. I don't think any extant tool does what you want.
Oh, what I wrote is not clear indeed. Well, what I mean is that I hope
to get a tool that can translate or compile Java/C++ code into C code,
just like the old CFront did. I think this would be meaningful and
helpful for me to dig into the deep implementation mechanism of C++ or
Java through reading C code.
Hmm, I think you're off on a wild goose chase. If you want to
understand how C++ and Java programs are compiled and how their
runtime support is implemented, you'll have to understand their
standards, the source code of a conforming implementation and it's
accompanying libraries, not to mention the characteristics of the
target machine architecture.
Simply reading a source translation will get you nowhere, even if you
can find a tool to do that.
Yes, it is really a great job to understand every aspect of a big
language like C++ or Java, however, what I care the most is its
runtime characteristics instead of their compilers or even the whole
language systems. I use Assembly language to study C and thus have
achieved a very good undestanding of the C runtime mechanism. So, I
wonder if there is also a similar way to analyze C++ or Java. In my
opinion, that is really a short-cut.
It depends on what exactly you mean by runtime system. You can try to
understand what's happening at a machine level for compiled languages
by examining the assembly output of the language's compiler, but this
is far more difficult for interpreted languages like Java. Java in
particular, is compiled to "bytecode", which runs under a complex
virtual machine, which does interpretation and runtime compilation in
combination. The runtime support for Java programs is also
significantly larger and more complex than for C. For C++, features
like RTTI, exception handling and name mangling will also complicate
matters.
C is closer to assembler than C++ and particularly Java. You'll have
to know the innards of the compiler/VM and associated libraries, in
conjunction with the language's specification to really understand
what's happening at the machine level.
All this assuming that you can get a tool to translate arbitrary C++
and Java source into C.
On 4 Mar 2007 03:01:15 -0800, "santosh" <sa*********@gm ail.comwrote:
>Bu*******@hotm ail.com wrote:
>On 4 Mar 2007 02:15:52 -0800, "santosh" <sa*********@gm ail.comwrote:
>Bunny....@hotm ail.com wrote:
On 4 Mar 2007 02:03:21 -0800, "santosh" <sa*********@gm ail.comwrote:
Bu*******@hotm ail.com wrote:
Hi,
I know that some granddaddy-level C++ compiler can compile C++ code
into a C intermediate. Apart from that, however, I can not find any
modern compiler to do that. And in fact, I think, this factor is very
pragmatical for a C programmer to learn Java more effectively.
Any one can give me some information on that ? Tools, compilers or
other methods applicable are all attractive to me. But where to get
them?
Thanks.
Why do you want to do this, particularly for learning Java.
PS. I don't think any extant tool does what you want.
Oh, what I wrote is not clear indeed. Well, what I mean is that I hope
to get a tool that can translate or compile Java/C++ code into C code,
just like the old CFront did. I think this would be meaningful and
helpful for me to dig into the deep implementation mechanism of C++ or
Java through reading C code.
Hmm, I think you're off on a wild goose chase. If you want to
understand how C++ and Java programs are compiled and how their
runtime support is implemented, you'll have to understand their
standards, the source code of a conforming implementation and it's
accompanying libraries, not to mention the characteristics of the
target machine architecture.
Simply reading a source translation will get you nowhere, even if you
can find a tool to do that.
Yes, it is really a great job to understand every aspect of a big
language like C++ or Java, however, what I care the most is its
runtime characteristics instead of their compilers or even the whole
language systems. I use Assembly language to study C and thus have
achieved a very good undestanding of the C runtime mechanism. So, I
wonder if there is also a similar way to analyze C++ or Java. In my
opinion, that is really a short-cut.
It depends on what exactly you mean by runtime system. You can try to
understand what's happening at a machine level for compiled languages
by examining the assembly output of the language's compiler, but this
is far more difficult for interpreted languages like Java. Java in
particular, is compiled to "bytecode", which runs under a complex
virtual machine, which does interpretation and runtime compilation in
combination. The runtime support for Java programs is also
significantl y larger and more complex than for C. For C++, features
like RTTI, exception handling and name mangling will also complicate
matters.
C is closer to assembler than C++ and particularly Java. You'll have
to know the innards of the compiler/VM and associated libraries, in
conjunction with the language's specification to really understand
what's happening at the machine level.
All this assuming that you can get a tool to translate arbitrary C++
and Java source into C.
What you said is very helpful to me and I am preparing to study more
about C++ compiler and Java VM, that seems to be a real need. Thank
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