Thread: how to compile C++ file on linux OS

Hi All ,

I am very much new for this forum as well as Linux operating system.
I am facing a silly problem . I am making a small C++ project on rad hat Linux.

I create a " Application" directory in witch i make a application.h which contain some .h files and a class declaration . Appliction.cpp file contains application.h file and class defination and main function . As i compile the application.cpp by using g++ -o a.out application.cpp then it gives the bundle of errors.


While if i just create a cpp file and compile it ,it works fine.

My question is , is there any different way to create .h file in Linux

all suggestion are appriciated.

Thanks in advance

ND

i am using diskIO.cpp
after compilation it gives these massages




[root@localhost diskIO]# g++ diskIO.cpp -o t.out


In file included from /usr/include/c++/3.2.2/backward/iostream.h:31,
from /usr/include/c++/3.2.2/backward/disk.h:5,
from diskIO.cpp:1:
/usr/include/c++/3.2.2/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <sstream> instead of the deprecated header <strstream.h>. To disable this warning use -Wno-deprecated.
diskIO.cpp:3: syntax error before `::' token
diskIO.cpp:7: ISO C++ forbids declaration of `memset' with no type
diskIO.cpp:7: `int memset' redeclared as different kind of symbol
/usr/include/string.h:58: previous declaration of `void* memset(void*, int,
unsigned int)'
diskIO.cpp:7: initializer list being treated as compound expression
diskIO.cpp:9: parse error before `for'
diskIO.cpp:9: parse error before `;' token
diskIO.cpp:9: syntax error before `++' token
diskIO.cpp:12: `hdd_no' was not declared in this scope
diskIO.cpp:12: ISO C++ forbids declaration of `sprintf' with no type
diskIO.cpp:12: `int sprintf' redeclared as different kind of symbol
/usr/include/stdio.h:303: previous declaration of `int sprintf(char*, const
char*, ...)'
diskIO.cpp:12: initializer list being treated as compound expression
diskIO.cpp:13: ISO C++ forbids declaration of `fin' with no type
diskIO.cpp:13: invalid conversion from `FILE*' to `int'
diskIO.cpp:14: parse error before `if'
diskIO.cpp:17: ISO C++ forbids declaration of `tt' with no type
diskIO.cpp:18: parse error before `}' token
diskIO.cpp: In function `int main()':
diskIO.cpp:32: `linux_diskIO' undeclared (first use this function)
diskIO.cpp:32: (Each undeclared identifier is reported only once for each
function it appears in.)
diskIO.cpp:32: parse error before `;' token
diskIO.cpp:33: `di' undeclared (first use this function)