Universal useful macros

misc_macros.h

#ifndef _MISC_MACROS_H_
#define _MISC_MACROS_H_

#define _SET_BIT(V,B)		(V) |=  (1 << (B))
#define _CLR_BIT(V,B)		(V) &= ~(1 << (B))
#define _INV_BIT(V,B)		(V) ^=  (1 << (B))

#define NIBBLE_PAIR(LN,HN)	(((LN) << 0) | ((HN) << 4))
#define PRINT_TYPE_SZ(T)	printf("sizeof(%s)=%u\n", #T, sizeof(T))

#define TYPEMASK(T)		(sizeof(T) - 1)
#define MASK(BITS)		((1UL << (BITS)) - 1UL)
#define MASK_3BITS		MASK(3)
#define MASK_4BITS		MASK(4)
#define MASK_5BITS		MASK(5)
#define MASK_6BITS		MASK(6)
#define MASK_7BITS		MASK(7)
#define MASK_8BITS		MASK(8)
#define MASK_16BITS		MASK(16)

// (V)ar, (T)ype;
#define ALIGN_BY_TYPE(V,T)	do{if(V & TYPEMASK(T)){		\
				    V &= ~TYPEMASK(T);		\
				    V += sizeof(T);}}while(0)

#ifndef TRUE
    #define TRUE		true
#endif
#ifndef FALSE
    #define FALSE		false
#endif

#if EOL_IS_CRLF
#define EOL			"\r\n"
#define EOL2			"\r\n\n"
#define EOL3			"\r\n\n\n"
#define EOL4			"\r\n\n\n\n"
#define EOL5			"\r\n\n\n\n\n"
#define EOL6			"\r\n\n\n\n\n\n"
#define EOL7			"\r\n\n\n\n\n\n\n"
#define EOL8			"\r\n\n\n\n\n\n\n\n"
#define EOL9			"\r\n\n\n\n\n\n\n\n\n"
#define EOL10			"\r\n\n\n\n\n\n\n\n\n\n"
#else
#define EOL			"\n"
#define EOL2			"\n\n"
#define EOL3			"\n\n\n"
#define EOL4			"\n\n\n\n"
#define EOL5			"\n\n\n\n\n"
#define EOL6			"\n\n\n\n\n\n"
#define EOL7			"\n\n\n\n\n\n\n"
#define EOL8			"\n\n\n\n\n\n\n\n"
#define EOL9			"\n\n\n\n\n\n\n\n\n"
#define EOL10			"\n\n\n\n\n\n\n\n\n\n"
#endif
#define CLS			"\033[2J\033[0;0H"

#endif // _MISC_MACROS_H_