I am going to close this thread. It is veering off-topic.
However I would like to point out that C and C++ have a special type defined for pointer arithmetic, namely ptrdiff_t, which is a typedef of a platform-specific signed integral type.
You can use a variable of type ptrdiff_t to store the result of subtracting or adding pointers as shown in the following simple example:
What are the advantages of ptrdiff_t? Self-documenting and portability - the underlying type may vary across programming models but porting requires no source code changes.
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)
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)
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)
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)
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)
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)
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)
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)
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
LEARN ABOUT SUNOS
m_getvalues_layout
m_getvalues_layout(3LAYOUT) Layout Service Library Functions m_getvalues_layout(3LAYOUT)NAME
m_getvalues_layout - query layout values of a LayoutObject
SYNOPSIS
cc [ flag... ] file... -llayout [ library... ]
#include <sys/layout.h>
int m_getvalues_layout(const LayoutObject layout_object, LayoutValues values, int *index_returned);
DESCRIPTION
The m_getvalues_layout() function queries the current setting of layout values within a LayoutObject.
The layout_object argument specifies a LayoutObject returned by the m_create_layout(3LAYOUT) function.
The values argument specifies the list of layout values that are to be queried. Each value element of a LayoutValueRec must point to a
location where the layout value is stored. That is, if the layout value is of type T, the argument must be of type T*. The values are
queried from the LayoutObject and represent its current state.
It is the user's responsibility to manage the space allocation for the layout values queried. If the layout value name has QueryValueSize
OR-ed to it, instead of the value of the layout value, only its size is returned. The caller can use this option to determine the amount of
memory needed to be allocated for the layout values queried.
RETURN VALUES
Upon successful completion, the m_getvalues_layout() function returns 0. If any value cannot be queried, the index of the value causing the
error is returned in index_returned, -1 is returned and errno is set to indicate the error.
ERRORS
The m_getvalues_layout() function may fail if:
EINVAL The layout value specified by index_returned is unknown, its value is invalid, or the layout_object argument is invalid. In
the case of an invalid layout_object argument, the value returned in index_returned is -1.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO m_create_layout(3LAYOUT), attributes(5)SunOS 5.10 8 Jun 1999 m_getvalues_layout(3LAYOUT)