12-16-2005
You're violating basic rules. You tell the compiler l_test is a constant. That means you GUARANTEE not to mess with it - specifically you say 'I promise I will not change this to 888888888'.
What you're seeing is called 'undefined behavior', because you broke all the rules.
10 More Discussions You Might Find Interesting
1. Programming
Hi,
If I have the following code :
int i=2;
switch(i)
{
case 1 : {};break;
default : { printf("d"); };break;
case 2 : { printf("2"); };break;
}
what will be the output?
I had an understanding that case statements are taken sequentially so default will be executed. But... (5 Replies)
Discussion started by: soorajmu
5 Replies
2. Shell Programming and Scripting
Gentlemen,
OK, I have an odd issue here perhaps someone can shed some light for me. When running a script as its user/owner the below pause/wait works just fine. When a developer has used su - to assume the username the pause does not happen... This is a HPUX11.00 machine, I have copied the blurb... (1 Reply)
Discussion started by: Eronysis
1 Replies
3. Programming
Hi,
I have one doubt, in the below program, if I declare char *b inside the main(), the function compiles & runs properly. But at the same time, if I declare it globally it compiles but when we run it, it creates core dump (segmentation fault) both in C & C++. It is not being trapped by catch... (7 Replies)
Discussion started by: royalibrahim
7 Replies
4. Shell Programming and Scripting
Can some-one give me a view to this :
I have a directory in an unix server, having permissions r-xr-xr-x .This directory is basically a source directory.
Now there is another directory basically the destination directory which has all the permissions.
Note:I log in as not the owner,but user... (5 Replies)
Discussion started by: navojit dutta
5 Replies
5. Shell Programming and Scripting
I have a variable, defndata, which is a number (fetched from a file using awk).
I want that if defndata is not initialized (that is its not found in the file using awk), then to execute a block of statements, otherwise execute another block.
if
then
....
else
...
fi
Now this... (4 Replies)
Discussion started by: indianjassi
4 Replies
6. Shell Programming and Scripting
i 've noticed the following difference between freebsd cp and gnu cp
from the freebsd cp man page:
-R ... If the source_file ends in a /, the contents of the directory are copied rather than
the directory itself. ...
on gnu cp from the man pagewhile on gnu cp manpage:
‘-r'... (2 Replies)
Discussion started by: aegis
2 Replies
7. Programming
fg = foreground bg = background
I have a cobol program that I start with a very simple script.
The script is not at fault as it has not changed and the program worked in fg and bg before.
I have altered the logging in the program and moved my cursor declare to working storage.
The program runs... (6 Replies)
Discussion started by: Bruble
6 Replies
8. UNIX for Dummies Questions & Answers
Can someone explain how the below awk simulates cat?
pandeeswaran@ubuntu:~$ awk '1' file
PSAPSR3 3722000 91989.25 2 98
PSAPSR7 1562000 77000.1875 5 95
PSAPUNDO 92000 4087.5625 4 96
pandeeswaran@ubuntu:~$ awk '2' file
PSAPSR3 3722000 91989.25 2 98
PSAPSR7 1562000 77000.1875 5 95
PSAPUNDO... (3 Replies)
Discussion started by: pandeesh
3 Replies
9. Programming
I see strange results when sorting with -n options and I wander if somebody can explain it.
Input file and two results:
$ cat aa
14
-1
11
-1
0
-1
0
$ sort -u aa
-1
0 (1 Reply)
Discussion started by: migurus
1 Replies
10. Red Hat
Hi Experts,
ps command behavior in Redhat is such that it outputs all the output(of long lengths). In Unix the ps command output was limited to only 80 chars. In that if you pipe its output to another command hen the 80 chars restriction wouldn't be there. This 80 char limitation will only be... (14 Replies)
Discussion started by: Albert_Pinto7
14 Replies
LEARN ABOUT DEBIAN
tau_get_func_vals
TAU_GET_FUNC_VALS(3) TAU Instrumentation API TAU_GET_FUNC_VALS(3)
NAME
TAU_GET_FUNC_VALS - Gets detailed performance data for given functions
SYNOPSIS
C/C++:
TAU_GET_FUNC_VALS(const char **inFuncs, int numOfFuncs, double ***counterExclusiveValues, double ***counterInclusiveValues,
int **numOfCalls, int **numOfSubRoutines, const char ***counterNames, int *numOfCounters, int tid);
DESCRIPTION
It gets detailed performance data for the list of routines. The user specifies inFuncs and the number of routines; TAU then returns the
other arguments with the performance data. counterExclusiveValues and counterInclusiveValues are two dimensional arrays: the first
dimension is the routine id and the second is counter id. The value is indexed by these two dimensions. numCalls and numSubrs (or child
routines) are one dimensional arrays.
EXAMPLE
C/C++ :
const char **inFuncs;
/* The first dimension is functions, and the
second dimension is counters */
double **counterExclusiveValues;
double **counterInclusiveValues;
int *numOfCalls;
int *numOfSubRoutines;
const char **counterNames;
int numOfCouns;
TAU_GET_FUNC_NAMES(functionList, numOfFunctions);
/* We are only interested in the first two routines
that are executing in this context. So, we allocate
space for two routine names and get the performance
data for these two routines at runtime. */
if (numOfFunctions >=2 ) {
inFuncs = (const char **) malloc(sizeof(const char *) * 2);
inFuncs[0] = functionList[0];
inFuncs[1] = functionList[1];
//Just to show consistency.
TAU_DB_DUMP();
TAU_GET_FUNC_VALS(inFuncs, 2,
counterExclusiveValues,
counterInclusiveValues,
numOfCalls,
numOfSubRoutines,
counterNames,
numOfCouns);
TAU_DUMP_FUNC_VALS_INCR(inFuncs, 2);
cout << "@@@@@@@@@@@@@@@" << endl;
cout << "The number of counters is: " << numOfCouns << endl;
cout << "The first counter is: " << counterNames[0] << endl;
cout << "The Exclusive value of: " << inFuncs[0]
<< " is: " << counterExclusiveValues[0][0] << endl;
cout << "The numOfSubRoutines of: " << inFuncs[0]
<< " is: " << numOfSubRoutines[0]
<< endl;
cout << "The Inclusive value of: " << inFuncs[1]
<< " is: " << counterInclusiveValues[1][0]
<< endl;
cout << "The numOfCalls of: " << inFuncs[1]
<< " is: " << numOfCalls[1]
<< endl;
cout << "@@@@@@@@@@@@@@@" << endl;
}
TAU_DB_DUMP_INCR();
SEE ALSO
TAU_GET_COUNTER_NAMES(3), TAU_GET_FUNC_NAMES(3), TAU_DUMP_FUNC_NAMES(3), TAU_DUMP_FUNC_VALS(3)
08/31/2005 TAU_GET_FUNC_VALS(3)