end(3C)              COMPATIBILITY FUNCTIONS              end(3C)



NAME
     end, etext, edata - last locations in program

SYNOPSIS
     extern etext;

     extern edata;

     extern end;

DESCRIPTION
     These names refer neither to routines nor to locations  with
     interesting contents; only their addresses are meaningful.

     etext
          The address of etext is the  first  address  above  the
          program text.

     edata
          The address of edata is the  first  address  above  the
          initialized data region.

     end  The address of end is the first address above the unin-
          itialized data region.

SEE ALSO
     cc(1), brk(2), malloc(3C), stdio(3S).

NOTE
     When execution begins, the program break (the first location
     beyond  the  data) coincides with end, but the program break
     may be reset by  the  routines  brk,  malloc,  the  standard
     input/output  library  [see  stdio(3S)], by the profile (-p)
     option of cc, and so on.  Thus, the  current  value  of  the
     program  break should be determined by sbrk ((char *)0) [see
     brk(2)].



















          Last change: C Programming Language Utilities         1