/** * Marlin 3D Printer Firmware * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin] * * Based on Sprinter and grbl. * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm * * 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 3 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, see <http://www.gnu.org/licenses/>. * */ #ifndef MACROS_H #define MACROS_H // Macros to make a string from a macro #define STRINGIFY_(n) #n #define STRINGIFY(n) STRINGIFY_(n) // Macros for bit masks #define TEST(n,b) (((n)&_BV(b))!=0) #define SBI(n,b) (n |= _BV(b)) #define CBI(n,b) (n &= ~_BV(b)) #define SET_BIT(n,b,value) (n) ^= ((-value)^(n)) & (_BV(b)) // Macros for maths shortcuts #define RADIANS(d) ((d)*M_PI/180.0) #define DEGREES(r) ((r)*180.0/M_PI) // Macros to contrain values #define NOLESS(v,n) do{ if (v < n) v = n; }while(0) #define NOMORE(v,n) do{ if (v > n) v = n; }while(0) // Macros to support option testing #define _CAT(a, ...) a ## __VA_ARGS__ #define SWITCH_ENABLED_false 0 #define SWITCH_ENABLED_true 1 #define SWITCH_ENABLED_0 0 #define SWITCH_ENABLED_1 1 #define SWITCH_ENABLED_ 1 #define ENABLED(b) _CAT(SWITCH_ENABLED_, b) #define DISABLED(b) (!_CAT(SWITCH_ENABLED_, b)) #define NUMERIC(a) ((a) >= '0' && '9' >= (a)) #define NUMERIC_SIGNED(a) (NUMERIC(a) || (a) == '-') #define COUNT(a) (sizeof(a)/sizeof(*a)) #endif //__MACROS_H