/* include/c/defs.h ** ** This file is in the public domain. */ /** Loobeans - inverse booleans to match nock. **/ # define c3y 0 # define c3n 1 # define _(x) (c3y == (x)) # define __(x) ((x) ? c3y : c3n) # define c3a(x, y) __(_(x) && _(y)) # define c3o(x, y) __(_(x) || _(y)) /** Random useful C macros. **/ /* Assert. Good to capture. */ // # define c3_assert(x) assert(x) # define c3_assert(x) ( (x) ? 0 : c3_cooked(), assert(x) ) /* Stub. */ # define c3_stub (assert(!"stub"), 0) /* Size in words. */ # define c3_wiseof(x) (((sizeof (x)) + 3) >> 2) /* Bit counting. */ # define c3_bits_word(w) ((w) ? (32 - __builtin_clz(w)) : 0) /* Min and max. */ # define c3_max(x, y) ( ((x) > (y)) ? (x) : (y) ) # define c3_min(x, y) ( ((x) < (y)) ? (x) : (y) ) /* Rotate. */ # define c3_rotw(r, x) ( ((x) << (r)) | ((x) >> (32 - (r))) ) /* Emergency stdio fix. */ int c3_cooked(); /* Short integers. */ # define c3_s1(a) ( (a) ) # define c3_s2(a, b) ( ((b) << 8) | c3_s1(a) ) # define c3_s3(a, b, c) ( ((c) << 16) | c3_s2(a, b) ) # define c3_s4(a, b, c, d) ( ((d) << 24) | c3_s3(a, b, c) ) # define c3_s5(a, b, c, d, e) \ ( ((uint64_t)c3_s1(e) << 32ULL) | c3_s4(a, b, c, d) ) # define c3_s6(a, b, c, d, e, f) \ ( ((uint64_t)c3_s2(e, f) << 32ULL) | c3_s4(a, b, c, d) ) # define c3_s7(a, b, c, d, e, f, g) \ ( ((uint64_t)c3_s3(e, f, g) << 32ULL) | c3_s4(a, b, c, d) ) # define c3_s8(a, b, c, d, e, f, g, h) \ ( ((uint64_t)c3_s4(e, f, g, h) << 32ULL) | c3_s4(a, b, c, d) ) /* Byte-order twiddling. */ # define c3_flip32(w) \ ( (((w) >> 24) & 0xff) \ | (((w) >> 16) & 0xff) << 8 \ | (((w) >> 8) & 0xff) << 16 \ | ( (w) & 0xff) << 24 ) /* Logging shorthand. */ # define c3_log_every(n, args...) \ do { \ static c3_w cnt_w = 0; \ \ if ( 0 == cnt_w % (n) ) { \ uL(fprintf(uH, args)); \ } \ cnt_w = (cnt_w + 1) % (n); \ } while (0) /* c3_malloc(): asserting malloc */ #define c3_malloc(s) ({ \ void* rut = malloc(s); \ if ( 0 == rut ) { \ c3_assert(!"memory lost"); \ } \ rut;}) /* c3_calloc(): asserting calloc */ #define c3_calloc(s) ({ \ void* rut = c3_malloc(s); \ memset(rut, 0, s); \ rut;})