01-18-2011
I guess what prompted all this was the following remark (which I might even have overlooked since I didn't read the entire thread in detail):
Quote:
Since they're in stack space their addresses are very high, and end up flipping over to negative when you print them as signed integers.
Certainly I agree that the properties of scope, duration and even limitations should be understood.
However I disagree that the address space layout is a good tool to do this.
The address printed by the original poster
happened to have a "high" address, so high that it will have the sign bit set if looked at through a signed integer. That is all there is to know at this (and most any) stage, IMO (which you are free to disagree with and I'm not going to argue about
)
10 More Discussions You Might Find Interesting
1. Programming
Hi all,
Can anyone tell me a little about the datatype FILE, which represents stream. What does its structure look like, and in which header file is it defined and so on...
Ex :
FILE *fp ;
fp = fopen("filename", "w") ; (6 Replies)
Discussion started by: milhan
6 Replies
2. Programming
Hi,
I am trying to understand an very old C program.
....
time_t start, end;
ptr = localtime(&start);
...
fprintf(out, "%-35s 01 %5s %2s %10d 1 5 /tty/M%d/%02d %24s", buffer3, job, ver, start, mach_num,atoi(buffer), asctime(ptr));
fprintf(out, "%-35s 03 %5s %2s %10d 1 5... (9 Replies)
Discussion started by: whatisthis
9 Replies
3. Programming
I am writing some code to do analysis on the file system (HP-UX 11.11).
I am using stat(..) to get file information. My problem is that the file-size may exceed the data types defined in 'sys/stat.h' & 'sys/types.h' respectively.
Thus file-sizes in the Giga-byte range are not read correctly.... (2 Replies)
Discussion started by: ALTRUNVRSOFLN
2 Replies
4. AIX
Hello,
I get this message : "Value too large to be stored in data type" when I try to open a 3Gb file.
Can someone helps me to resolve the problem.
Thank you very much (5 Replies)
Discussion started by: limame
5 Replies
5. UNIX for Dummies Questions & Answers
I have seen it done at my job before, there is a command that will make a notepad and show the directorie path, subfolders, and size of the subfolders? But i dont want it to go lower than 2 levels for example:
folder_01 10 GB
subfolder_02 10 GB
subfolder_03 10 GB... (4 Replies)
Discussion started by: JUSSAN007
4 Replies
6. Shell Programming and Scripting
I am using perl 5.8.0.
I need to check some values to see it they are floats. Our system does not have Data::Types so I can't use is_float. Is there something else that I can use? The only thing in Data is Dump.pm. I am not allowed to download anything to our system so I have to use what I have.... (3 Replies)
Discussion started by: ajgwin
3 Replies
7. UNIX for Advanced & Expert Users
Dear All,
How internally memory allocated when we declare the float data type.
how many bytes allocated for decimal and how many bytes for fraction.
kindly help me in this regards. (2 Replies)
Discussion started by: rajamohan
2 Replies
8. Shell Programming and Scripting
I'm not a unix guy so excuses my ignorance... I'm the database ETL guy.
I'm trying to be proactive and devise a plan B for a ETL process where I expect a file 10X larger than what I process daily for a recast job. The ETL may handle it but I just don't know.
This file may need to be split... (3 Replies)
Discussion started by: john091
3 Replies
9. Web Development
Hi everybody,
I`m very new with PHP and Databases and I having the follow issue with prices data..
The original information is in CSV files.
The prices have formatted with commas and dots as follow:
12,300.99 -->(thousands separated by commas)
3,500.25 -->(thousands separated... (10 Replies)
Discussion started by: cgkmal
10 Replies
10. Programming
This is from a program I wrote over in 1998 that I am trying to compile on a linux machine:
void write_line (FILE *fp, int rec_no, line_rec *arec)
{
fpos_t woffset;
woffset = (rec_no - 1) * sizeof(line_rec);
fsetpos(fp,&woffset);
fwrite(arec,sizeof(line_rec),1,fp);
}On the line... (2 Replies)
Discussion started by: wbport
2 Replies
values.h(3HEAD) Headers values.h(3HEAD)
NAME
values.h, values - machine-dependent values
SYNOPSIS
#include <values.h>
DESCRIPTION
This file contains a set of manifest constants, conditionally defined for particular processor architectures.
The model assumed for integers is binary representation (one's or two's complement), where the sign is represented by the value of the
high-order bit.
BITS(type) The number of bits in a specified type (for example, int).
HIBITS The value of a short integer with only the high-order bit set.
HIBITL The value of a long integer with only the high-order bit set.
HIBITI The value of a regular integer with only the high-order bit set.
MAXSHORT The maximum value of a signed short integer.
MAXLONG The maximum value of a signed long integer.
MAXINT The maximum value of a signed regular integer.
MAXFLOAT, LN_MAXFLOAT The maximum value of a single-precision floating-point number, and its natural logarithm.
MAXDOUBLE, LN_MAXDOUBLE The maximum value of a double-precision floating-point number, and its natural logarithm.
MINFLOAT, LN_MINFLOAT The minimum positive value of a single-precision floating-point number, and its natural logarithm.
MINDOUBLE, LN_MINDOUBLE The minimum positive value of a double-precision floating-point number, and its natural logarithm.
FSIGNIF The number of significant bits in the mantissa of a single-precision floating-point number.
DSIGNIF The number of significant bits in the mantissa of a double-precision floating-point number.
SEE ALSO
intro(3) math.h(3HEAD)
SunOS 5.10 2 Mar 1993 values.h(3HEAD)