Hey, can I #define something outside the source file ?
I have a C program which uses #ifdef..
The usual way that I know of defining ABC is in the source/header file
But is there any other way to do that ? Maybe as an option to pass to the compiler ?
The reason is, I just want to run one script/makefile which will compile both versions of the progra, with ABC defined and without ABC defined.. without having to make changes in the source code.
i have a class name 1.c in tht i am using function n wich has his body in 2.c and declaration in 2.h
now how can i compile 1.c.
ex;
1.c
int main()
{
//some data
n(10);
//somedata
}
*****
2.c
int n(int k)
{
//some data
}
int main()
{
some data (2 Replies)
What does the following mean:
state_field state_abvr = {
"AL","ALABAMA",
"AK","ALASKA",
.
.
.
};
extern state_field state_abvr;
issues we
I am facing following compilation issue
bosdf9d1:root make
CC -I/bto/bcs/shared/include -I/bto/sys/BCS/usr/include ... (1 Reply)
Hi All,
We have a C program existing in one of the folders which I have to modify a lil bit, When I'm trying to compile the program using GCC or CC command its showing as
ksh: gcc: not found
is that mean there is no compiler or do I have to verify for something, please advice
Thank... (2 Replies)
Hi ,
Please answer my query:
I want to create a common make file for one of mylibrary such that it should work on both Sun as well as Linux on 32 and 64 bit system.
The flow is sth like this:
..............
..............
if$(OS) == solaris
BINDIR= ../../lib/solaris/64
else
BINDIR=... (1 Reply)
I want to be able to access an environment variable to control how a program is compiled.
So:
export MY_VERSN=9
Then ideally, within my C++ code, I would have
#if MY_VERSN = 9
iret = FRED9()
#else
iret = FRED()
#endif
The way I thought I could do it is that in the script that... (2 Replies)
Dear all
I am new to C programming
In response to the post
cat get_time.c
#include <stdlib.h>
#include <sys/time.h>
main()
{
struct timeval tv;
struct timezone tz;
struct tm *tm;
gettimeofday(&tv, &tz);
tm=localtime(&tv.tv_sec);
printf("... (2 Replies)
I'm just starting this whole scripting thing, and I'm trying to write a simple script which will ask the user to press a key between 3-7. If they press a key that's not between 3-7, it will tell the user such.
Here's my script:
#!/bin/bash
blah=1
echo -n "Press a key from 3-7."
read... (3 Replies)
Hi guys...
Im trying to compile a program written in C..
I am able to compile it to X86, especifically Ubuntu..
But i cant compile it to mips ar71xx architecture..
im using mips-linux-uclibc-gcc cross compiler.
this is the portion of code:
//STAT: LOGIN INFO
// 3. login info
i =... (3 Replies)
I trying to get a simple script to see if a directory contains any files in it. I am failing on the conditional IF statement. I am not sure if it because the command I am using is creating the variable as a string or if it is numeric or if I just have the syntax wrong.
#!/usr/bin/ksh... (2 Replies)
Discussion started by: awkwardone
2 Replies
LEARN ABOUT REDHAT
h2ph
H2PH(1) Perl Programmers Reference Guide H2PH(1)NAME
h2ph - convert .h C header files to .ph Perl header files
SYNOPSIS
h2ph [-d destination directory] [-r | -a] [-l] [headerfiles]
DESCRIPTION
h2ph converts any C header files specified to the corresponding Perl header file format. It is most easily run while in /usr/include:
cd /usr/include; h2ph * sys/*
or
cd /usr/include; h2ph * sys/* arpa/* netinet/*
or
cd /usr/include; h2ph -r -l .
The output files are placed in the hierarchy rooted at Perl's architecture dependent library directory. You can specify a different hier-
archy with a -d switch.
If run with no arguments, filters standard input to standard output.
OPTIONS -d destination_dir
Put the resulting .ph files beneath destination_dir, instead of beneath the default Perl library location ($Config{'installsit-
search'}).
-r Run recursively; if any of headerfiles are directories, then run h2ph on all files in those directories (and their subdirectories,
etc.). -r and -a are mutually exclusive.
-a Run automagically; convert headerfiles, as well as any .h files which they include. This option will search for .h files in all direc-
tories which your C compiler ordinarily uses. -a and -r are mutually exclusive.
-l Symbolic links will be replicated in the destination directory. If -l is not specified, then links are skipped over.
-h Put ``hints'' in the .ph files which will help in locating problems with h2ph. In those cases when you require a .ph file containing
syntax errors, instead of the cryptic
[ some error condition ] at (eval mmm) line nnn
you will see the slightly more helpful
[ some error condition ] at filename.ph line nnn
However, the .ph files almost double in size when built using -h.
-D Include the code from the .h file as a comment in the .ph file. This is primarily used for debugging h2ph.
-Q ``Quiet'' mode; don't print out the names of the files being converted.
ENVIRONMENT
No environment variables are used.
FILES
/usr/include/*.h
/usr/include/sys/*.h
etc.
AUTHOR
Larry Wall
SEE ALSO perl(1)DIAGNOSTICS
The usual warnings if it can't read or write the files involved.
BUGS
Doesn't construct the %sizeof array for you.
It doesn't handle all C constructs, but it does attempt to isolate definitions inside evals so that you can get at the definitions that it
can translate.
It's only intended as a rough tool. You may need to dicker with the files produced.
You have to run this program by hand; it's not run as part of the Perl installation.
Doesn't handle complicated expressions built piecemeal, a la:
enum {
FIRST_VALUE,
SECOND_VALUE,
#ifdef ABC
THIRD_VALUE
#endif
};
Doesn't necessarily locate all of your C compiler's internally-defined symbols.
perl v5.8.0 2003-02-18 H2PH(1)