Any Pro*C/C++ users out there?

#11

On Sep 7, 10:57*am, Maxim Demenko <mdeme... (AT) gmail (DOT) com> wrote:

Quote:

Ramon F Herrera wrote:
I have a new question. I took a C program that precompiled, compiled,
linked and executed perfectly.

Now I am trying to convert it into a C++ program.

My current problem is that the following four variables are not
recognized by the C++ precompiler:

varchar * * * * username[UNAME_LEN];
varchar * * * * password[PWD_LEN];

EXEC SQL CONNECT :username IDENTIFIED BY

assword;

int howMany;
varchar table_name[SOME_SIZE];

EXEC SQL SELECT COUNT(1) INTO :howMany FROM user_tables WHERE
table_name = :table_name;

It seems like the variables embedded into the EXEC SQL statements need
a different syntax?

TIA,

-Ramon

I'm not a c/c++ developer by any means

By your answers, it seems to me like you are a more competent C++
developer than myself. :-)

You are absolutely right, that was indeed the problem.

Now I have a new one, to be posted next.

Thanks!

-Ramon

#12

On Sep 7, 11:09*am, Ramon F Herrera <ra... (AT) conexus (DOT) net> wrote:

Quote:

On Sep 7, 10:57*am, Maxim Demenko <mdeme... (AT) gmail (DOT) com> wrote:

Ramon F Herrera wrote:
I have a new question. I took a C program that precompiled, compiled,
linked and executed perfectly.

Now I am trying to convert it into a C++ program.

My current problem is that the following four variables are not
recognized by the C++ precompiler:

varchar * * * * username[UNAME_LEN];
varchar * * * * password[PWD_LEN];

EXEC SQL CONNECT :username IDENTIFIED BY

assword;

int howMany;
varchar table_name[SOME_SIZE];

EXEC SQL SELECT COUNT(1) INTO :howMany FROM user_tables WHERE
table_name = :table_name;

It seems like the variables embedded into the EXEC SQL statements need
a different syntax?

TIA,

-Ramon

*> I'm not a c/c++ developer by any means

By your answers, it seems to me like you are a more competent C++
developer than myself. :-)

You are absolutely right, that was indeed the problem.

Now I have a new one, to be posted next.

Thanks!

-Ramon

I am glad to report that I am very close to building my first non-
trivial C++ program.

I began with a complex, operational C program.

The only issues left are conversions from "char *" to "unsigned char
*". My guess is that I should change all my strings to C++ string
type.

-Ramon

#13

On Sep 6, 6:32 pm, Ramon F Herrera <ra... (AT) conexus (DOT) net> wrote:

Quote:

As far as Java (one of my favorite all-time languages! - Have several
Java programs that I would never port) there is no way it can even
approach the performance of a native language.

Aren't there Java compilers out there that will compile to
native code and not byte code?

I think the gcc will do this - a google appears to bring
up lots of stuff.

Paul...

> -Ramon