Hi all. I am trying to use restricted pointers to allow the gcc compiler optimize the code, but I have not been able to make it work so far. I am testing with this code:
The gcc-4.2 compiler does not even complaints for the last part with the -O3 and -std=c99 options. Dues someone knows how to make restricted pointers work? Thanks in advance.
Below is the program i tried to execute......
main()
{
static int a = {0,1,2,3,4};
static int *p = {a, a+1, a+2, a+3, a+4};
printf (“\n %u %u %d”, p, *p, *(*p) );
}
This works, but i wanted to know why both a and *p are declared as "static". If we dont declare a as static... (2 Replies)
A few of the other employees here need to learn "vi" in order to use crontab to schedule / unschedule jobs on one of our production servers. I tried to set up a login on one of my Linux boxes for them to use "vimtutor", but scrapped it and decided to try for something more secure, since there are... (1 Reply)
I am having trouble getting restricted SAM to work by allocating Privileges to a "group". I can make it work by allocaing to the userid's, but would preferre to use the "group" option.
Running B.11.11
Tried the following....
1) Created a user group in /etc/group first
2) Used the... (1 Reply)
Hi I mash with pointers in C. I solve this problem about 5 hours and I don't know how I should continue.
void InsertFirst (tList *L, int val) {
tElemPtr new;
if((new = malloc(sizeof(tElemPtr))) == NULL) Error();
new->data = val;
new->ptr = L->frst;
L->frst = new;... (2 Replies)
I have a task to create a new id that going to used by vendor. The ID profiles are:
1)The ID to be created is MUST be restricted sharing.
2)create for their own user account
3)unable to read/navigate/view other directories
4)unable to write to other directories
able to create their own... (3 Replies)
I have a special character called ô. When it is declared as a character variable its showing it can be printed. But when it is declared as a character pointer variable its showing it cannot be printed. I am just wondering why its happening like this..
c1 = '@';
c2 = 'ô';
char *fp;
fp="XXô";
if... (1 Reply)
Hello
I have a user with a Restricted Shell on a Aix 5.3. My question is about if I can add one more path on the home directory.
I mean the user have in his home directory. for example /test/my_application/logs but I need that this user can view another log that is on another path, if this... (1 Reply)
Hello everyone
I need to create a restricted user or a special user. Here is what I need.
I have this path
next to profiles I have server1, server2, server3.......
The user that I have to create I need that he can move between server1. server2, server3 because in every one have logs... (1 Reply)
Discussion started by: lo-lp-kl
1 Replies
LEARN ABOUT DEBIAN
fort77
FORT77(1) Linux Programmer's Manual FORT77(1)NAME
fort77 - invoke f2c Fortran translator transparently, like a compiler
SYNOPSIS
fort77 [-c] [-g] [-v] [-k] [-P] [-cpp] [f2c option ...] [-L directory ...] [gcc-option ...] [link option ...] [-O optlevel] [-o out-
file] [-s] [-w] [-Wx,arg1[,arg2]...] file ...
DESCRIPTION
The fort77 script invokes the f2c command transparently, so it can be used like a real Fortran compiler. It can be used to compile For-
tran, C and assembler code, and to link it with the f2c libraries.
File arguments ending with .f are compiled as Fortran source files. Files which end with .P are passed through to f2c, and files ending
with .F are passed to the C preprocessor (invoked as "/lib/cpp -traditional") first. Any switches passed via -D will be passed to the pre-
processor. If the translation is successful, the resulting C files will be passed to cc for translation into an object file. Files ending
in .c, .C, .cc, .i, .s, .S, .m, .cc or .cxx are passed to the GNU C compiler directly; see gcc(1). All other files are passed to the
linker.
OPTIONS -c Supress linking and produce an object ( .o ) file from each source file.
-g Include debugging information. -v Be verbose; supplying this twice will also tell the C compilers etc to be verbose.
-k Keep the C files generated by f2c around.
-cpp Pass Fortran code through the C preprocessor, as if filenames ended in .F.
-P Generate f2c .P files.
-Ldirectory
Include directory in the search for libraries in the final linking stage.
-o outfile
Send output to outfile.
-trapuv Have f2c generate code to trap uninitialized values.
-Wx,arg1[,arg2...]
Pass the argument[s] argi through to the subprocess x, where x can assume one of the following values: f for the f2c step, p for
the preprocessing step, c for the C compiler, a for the assembler (this is actually passed to the C compiler, too), and l for the
linker. As an example, defining a preprocessor constant for the C compilation step would be done with -Wc,-DUNIX=1. Specifying
the -f option to f2c would be done via -Wf,-f.
f2c option
fort77 passes through almost all f2c options: -C, -U, -u, -a, -E, -h, -P, -R, -r, -z, -I2, -I4, -onetrip, -!c, -!l, -!P, -!R, -ext,
-!bs, -W[n], -trapuv, -w8, -r8 and -w66.
gcc options
The following options are passed through to gcc: -f*, -W*, -U*, -A*, -m*, -S, -E, -v, -x, -pipe, -o, -I, -V, -b*, -p, -pg.
linker option
The options passed to the linking stage are -static, -shared, -v, -V, and -symbolic.
BUGS
To make debugging work, you need to set a breakpoint at MAIN__ before you start.
f2c This script automatically supplies the -I. option to f2c. Older versions of f2c may not support this.
This script is for the interaction of gcc and f2c; using it with another compiler will probably require modification.
The fort77 script does not strictly conform to Posix.2, because it acceppts long options with one leading slash. This is done for gcc com-
patibility.
SEE ALSO f2c(1), cc(1), as(1), ld(1)AUTHOR
Thomas Koenig, ig25@rz.uni-karlsruhe.de
Linux Nov 1996 FORT77(1)