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/*--------------------------------------------------------------------*/
/*--- Standalone libc stuff. pub_tool_libcbase.h ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2000-2005 Julian Seward
jseward@acm.org
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
The GNU General Public License is contained in the file COPYING.
*/
#ifndef __PUB_TOOL_LIBCBASE_H
#define __PUB_TOOL_LIBCBASE_H
/* ---------------------------------------------------------------------
Char functions.
------------------------------------------------------------------ */
extern Bool VG_(isspace) ( Char c );
extern Bool VG_(isdigit) ( Char c );
/* ---------------------------------------------------------------------
Converting strings to numbers
------------------------------------------------------------------ */
extern Long VG_(atoll) ( Char* str ); // base 10
extern Long VG_(atoll36) ( Char* str ); // base 36
/* ---------------------------------------------------------------------
String functions and macros
------------------------------------------------------------------ */
/* Use this for normal null-termination-style string comparison */
#define VG_STREQ(s1,s2) (s1 != NULL && s2 != NULL \
&& VG_(strcmp)((s1),(s2))==0)
extern Int VG_(strlen) ( const Char* str );
extern Char* VG_(strcat) ( Char* dest, const Char* src );
extern Char* VG_(strncat) ( Char* dest, const Char* src, SizeT n );
extern Char* VG_(strpbrk) ( const Char* s, const Char* accpt );
extern Char* VG_(strcpy) ( Char* dest, const Char* src );
extern Char* VG_(strncpy) ( Char* dest, const Char* src, SizeT ndest );
extern Int VG_(strcmp) ( const Char* s1, const Char* s2 );
extern Int VG_(strncmp) ( const Char* s1, const Char* s2, SizeT nmax );
extern Char* VG_(strstr) ( const Char* haystack, Char* needle );
extern Char* VG_(strchr) ( const Char* s, Char c );
extern Char* VG_(strrchr) ( const Char* s, Char c );
/* Like strcmp() and strncmp(), but stop comparing at any whitespace. */
extern Int VG_(strcmp_ws) ( const Char* s1, const Char* s2 );
extern Int VG_(strncmp_ws) ( const Char* s1, const Char* s2, SizeT nmax );
/* Like strncpy(), but if 'src' is longer than 'ndest' inserts a '\0' as the
last character. */
extern void VG_(strncpy_safely) ( Char* dest, const Char* src, SizeT ndest );
/* Mini-regexp function. Searches for 'pat' in 'str'. Supports
* meta-symbols '*' and '?'. '\' escapes meta-symbols. */
extern Bool VG_(string_match) ( const Char* pat, const Char* str );
/* ---------------------------------------------------------------------
mem* functions
------------------------------------------------------------------ */
extern void* VG_(memcpy) ( void *d, const void *s, SizeT sz );
extern void* VG_(memset) ( void *s, Int c, SizeT sz );
extern Int VG_(memcmp) ( const void* s1, const void* s2, SizeT n );
/* ---------------------------------------------------------------------
Address computation helpers
------------------------------------------------------------------ */
// Check if an address/whatever is aligned
#define VG_IS_4_ALIGNED(aaa_p) (0 == (((Addr)(aaa_p)) & ((Addr)0x3)))
#define VG_IS_8_ALIGNED(aaa_p) (0 == (((Addr)(aaa_p)) & ((Addr)0x7)))
#define VG_IS_16_ALIGNED(aaa_p) (0 == (((Addr)(aaa_p)) & ((Addr)0xf)))
#define VG_IS_WORD_ALIGNED(aaa_p) (0 == (((Addr)(aaa_p)) & ((Addr)(sizeof(Addr)-1))))
#define VG_IS_PAGE_ALIGNED(aaa_p) (0 == (((Addr)(aaa_p)) & ((Addr)(VKI_PAGE_SIZE-1))))
// 'a' -- the alignment -- must be a power of 2.
// The latter two require the vki-*.h header to be imported also.
#define VG_ROUNDDN(p, a) ((Addr)(p) & ~((Addr)(a)-1))
#define VG_ROUNDUP(p, a) VG_ROUNDDN((p)+(a)-1, (a))
#define VG_PGROUNDDN(p) VG_ROUNDDN(p, VKI_PAGE_SIZE)
#define VG_PGROUNDUP(p) VG_ROUNDUP(p, VKI_PAGE_SIZE)
/* ---------------------------------------------------------------------
Misc useful functions
------------------------------------------------------------------ */
/* Like qsort(), but does shell-sort. The size==1/2/4 cases are specialised. */
extern void VG_(ssort)( void* base, SizeT nmemb, SizeT size,
Int (*compar)(void*, void*) );
/* Returns the base-2 logarithm of x. Returns -1 if x is not a power of two. */
extern Int VG_(log2) ( Int x );
// A pseudo-random number generator returning a random UInt. If pSeed
// is NULL, it uses its own seed, which starts at zero. If pSeed is
// non-NULL, it uses and updates whatever pSeed points at.
extern UInt VG_(random) ( /*MOD*/UInt* pSeed );
#endif // __PUB_TOOL_LIBCBASE_H
/*--------------------------------------------------------------------*/
/*--- end ---*/
/*--------------------------------------------------------------------*/
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