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Top Forums Programming fread: segementation fault(coredump) w/o stdlib.h Post 302286635 by quintet on Wednesday 11th of February 2009 03:19:42 PM
Old 02-11-2009
Quote:
Originally Posted by shamrock
That's because malloc is declared in /usr/include/stdlib.h file and when you remove it from the code malloc is no longer defined and the program core dumps. Did your compiler not warn you of that.
Nope. I did not receive any warnings from the compiler. Moreover when i debug the program it did go through the malloc part without any issue but failed in the fread command.
 

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end(3C) 																   end(3C)

NAME
end, edata, etext, __data_start, __text_start - last locations in program SYNOPSIS
DESCRIPTION
These names refer neither to routines nor to locations with interesting contents. The address of the symbols and is the first address above the program text. The address of and is the first address above the initialized data region. The address of and is the first address above the uninitialized data region. The address of the symbol is the beginning address of the program's data area, and is the beginning address of the program's text area. The linker defines these symbols with the appropriate values if they are referenced by the program but not defined. The linker issues an error if the user attempts to define or When execution begins, the program break (the first location beyond the data) coincides with but the program break can be reset by the rou- tines of brk(2), malloc(3C), standard input/output (stdio(3S)), the profile option of cc(1), and so on. Thus, the current value of the program break should be determined by (see brk(2)). WARNINGS
In C, these names must look like addresses. Thus, use instead of to access the current value of end. SEE ALSO
System Tools cc(1) Invoke the HP-UX C compiler ld(1) Invoke the link editor Miscellaneous brk(2) Change data segment space allocation crt0(3) Execution startup routine malloc(3C) Main memory allocator stdio(3S) Standard buffered input/output stream file package STANDARDS CONFORMANCE
end(3C)
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