ELF_HASH(3) BSD Library Functions Manual ELF_HASH(3)NAME
elf_hash -- compute a hash value for a string
LIBRARY
ELF Access Library (libelf, -lelf)
SYNOPSIS
#include <libelf.h>
unsigned long
elf_hash(const char *name);
DESCRIPTION
Function elf_hash() computes a portable hash value for the null terminated string pointed to by argument name.
The hash value returned is will be identical across machines of different architectures. This allows hash tables to be built on one machine
and correctly used on another of a different architecture. The hash value returned is also guaranteed not to be the bit pattern of all ones
(~0UL).
IMPLEMENTATION NOTES
The library internally uses unsigned 32 bit arithmetic to compute the hash value.
SEE ALSO elf(3), gelf(3)BSD August 15, 2006 BSD
Check Out this Related Man Page
elf_hash(3ELF) ELF Library Functions elf_hash(3ELF)NAME
elf_hash - compute hash value
SYNOPSIS
cc [ flag ... ] file ... -lelf [ library ... ]
#include <libelf.h>
unsigned long elf_hash(const char *name);
DESCRIPTION
The elf_hash() function computes a hash value, given a null terminated string, name. The returned hash value, h, can be used as a bucket
index, typically after computing h mod x to ensure appropriate bounds.
Hash tables may be built on one machine and used on another because elf_hash() uses unsigned arithmetic to avoid possible differences in
various machines' signed arithmetic. Although name is shown as char* above, elf_hash() treats it as unsigned char* to avoid sign extension
differences. Using char* eliminates type conflicts with expressions such as elf_hash(name).
ELF files' symbol hash tables are computed using this function (see elf_getdata(3ELF) and elf32_xlatetof(3ELF)). The hash value returned is
guaranteed not to be the bit pattern of all ones ( ~0UL).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Stable |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO elf(3ELF), elf32_xlatetof(3ELF), elf_getdata(3ELF), libelf(3LIB), attributes(5)SunOS 5.10 11 Jul 2001 elf_hash(3ELF)
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