Follow Techotopia on Twitter

On-line Guides
All Guides
eBook Store
iOS / Android
Linux for Beginners
Office Productivity
Linux Installation
Linux Security
Linux Utilities
Linux Virtualization
Linux Kernel
System/Network Admin
Programming
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Databases
Mail Systems
openSolaris
Eclipse Documentation
Techotopia.com
Virtuatopia.com

How To Guides
Virtualization
General System Admin
Linux Security
Linux Filesystems
Web Servers
Graphics & Desktop
PC Hardware
Windows
Problem Solutions
Privacy Policy

  




 

 

31.10 Utility Program Capacity Limits

The POSIX.2 standard specifies certain system limits that you can access through sysconf that apply to utility behavior rather than the behavior of the library or the operating system.

The GNU C library defines macros for these limits, and sysconf returns values for them if you ask; but these values convey no meaningful information. They are simply the smallest values that POSIX.2 permits.

— Macro: int BC_BASE_MAX

The largest value of obase that the bc utility is guaranteed to support.

— Macro: int BC_DIM_MAX

The largest number of elements in one array that the bc utility is guaranteed to support.

— Macro: int BC_SCALE_MAX

The largest value of scale that the bc utility is guaranteed to support.

— Macro: int BC_STRING_MAX

The largest number of characters in one string constant that the bc utility is guaranteed to support.

— Macro: int COLL_WEIGHTS_MAX

The largest number of weights that can necessarily be used in defining the collating sequence for a locale.

— Macro: int EXPR_NEST_MAX

The maximum number of expressions that can be nested within parenthesis by the expr utility.

— Macro: int LINE_MAX

The largest text line that the text-oriented POSIX.2 utilities can support. (If you are using the GNU versions of these utilities, then there is no actual limit except that imposed by the available virtual memory, but there is no way that the library can tell you this.)

— Macro: int EQUIV_CLASS_MAX

The maximum number of weights that can be assigned to an entry of the LC_COLLATE category `order' keyword in a locale definition. The GNU C library does not presently support locale definitions.


 
 
  Published under the terms of the GNU General Public License Design by Interspire