pike.git/ src/ pike_macros.h > 9aa6fa6bf0a727c1efc3315456cc4eaba9157af8 [Annotate]

/*\ 

||| This file a part of Pike, and is copyright by Fredrik Hubinette 

||| Pike is distributed as GPL (General Public License) 

||| See the files COPYING and DISCLAIMER for more information. 

\*/ 

#ifndef MACROS_H 

#define MACROS_H 

#include <sys/param.h> 

#include "pike_memory.h" 

#define BASEOF(ptr, str_type, field)  \ 

((struct str_type *)((char*)ptr - (char*)& (((struct str_type *)0)->field))) 

#define NELEM(a) (sizeof (a) / sizeof ((a)[0])) 

#define ALLOC_STRUCT(X) ( (struct X *)xalloc(sizeof(struct X)) ) 

#define MINIMUM(X,Y) ((X)<(Y)?(X):(Y)) 

#define MAXIMUM(X,Y) ((X)>(Y)?(X):(Y)) 

#define is8bitalnum(X)        ("0000000000000000000000000000100000000000000000001111111111000000011111111111111111111111111000010111111111111111111111111110000000000000000000000000000000000000101111010110001011110110011011100000000001111111111111101111111111111111111111111111111011111111"[((unsigned)(X))&0xff] == '1') 

#define isidchar(X) is8bitalnum(X) 

#define ALIGN_BOUND sizeof(char *) 

#define DO_ALIGN(X,Y) (((long)(X)+(Y-1)) & -(Y)) 

#define MY_ALIGN(X) DO_ALIGN(X,ALIGN_BOUND) 

#endif