153 lines
3.3 KiB
C
153 lines
3.3 KiB
C
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/*
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* Overreact - Mr. 4th Dimention
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* Allen Webster
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* 03.21.2015 (mm.dd.yyyy)
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*
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* Meta File.
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*/
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#ifndef DB_META_H
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#define DB_META_H
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#include <stdint.h>
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#include <limits.h>
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typedef uint8_t u8;
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typedef uint64_t u64;
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typedef uint32_t u32;
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typedef uint16_t u16;
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typedef int8_t i8;
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typedef int64_t i64;
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typedef int32_t i32;
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typedef int16_t i16;
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typedef i32 bool32;
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typedef i8 bool8;
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typedef float real32;
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typedef double real64;
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typedef const char* c_str;
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#define internal static
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#define globalvar static
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#define persist static
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#define globalconst static const
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#define localconst static const
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#define S(X) #X
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#define S_(X) S(X)
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#define S__LINE__ S_(__LINE__)
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#define AllowLocal(name) (void)name
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#define ArrayCount(array) (sizeof(array)/sizeof(array[0]))
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#define Assert(check) {if(!(check)){FILE *file = fopen("errorlog", "wb"); fprintf(file, "ASSERT!"); fclose(file); *((i32*)0) = 0;}}
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#define TentativeAssert(check) {if(!(check)){*((i32*)0) = 0;}}
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#define Min(a,b) (((a)<(b))?(a):(b))
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#define Max(a,b) (((a)>(b))?(a):(b))
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#define Swap(t,a,b) {t temp = a; a = b; b = temp;}
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inline internal i32
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Round(real32 x){ return (i32)(x+.5f); }
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inline internal i32
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Floor(real32 x){ return (i32)(x)-(x<0)*((i32)x != x); }
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inline internal i32
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Ceil(real32 x){ return (i32)(x)+(x>0)*((i32)x != x); }
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inline internal real32
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DecPart(real32 x){ return x - (i32)x; }
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// TODO(allen): move to math.cpp
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inline internal i32
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LargeRoundUp(i32 n, i32 b){ return b*(n/b); }
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#define PI32 3.1415926f
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#define TAU32 6.2831853f
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#define TMax(t,v) globalconst t max_##t = v
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TMax(u8, 255);
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TMax(u16, 65535);
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TMax(u32, 4294967295);
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TMax(u64, 18446744073709551615);
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TMax(i8, 127);
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TMax(i16, 32767);
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TMax(i32, 2147483647);
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TMax(i64, 9223372036854775807);
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#undef TMax
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#define TMin(t) globalconst t min_##t = 0
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TMin(u8);
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TMin(u16);
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TMin(u32);
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TMin(u64);
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#undef TMin
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#define TMin(t,v) globalconst t min_##t = ((t)v)
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TMin(i8, -128);
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TMin(i16, -32768);
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TMin(i32, INT_MIN);
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TMin(i64, -9223372036854775808LL);
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#undef TMin
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#define CheckFlag(flags, mask) ((flags & mask) == mask)
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#define Bit_0 (1 << 0)
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#define Bit_1 (1 << 1)
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#define Bit_2 (1 << 2)
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#define Bit_3 (1 << 3)
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#define Bit_4 (1 << 4)
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#define Bit_5 (1 << 5)
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#define Bit_6 (1 << 6)
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#define Bit_7 (1 << 7)
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#define Bit_8 (1 << 8)
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#define Bit_9 (1 << 9)
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#define Bit_10 (1 << 10)
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#define Bit_11 (1 << 11)
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#define Bit_12 (1 << 12)
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#define Bit_13 (1 << 13)
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#define Bit_14 (1 << 14)
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#define Bit_15 (1 << 15)
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#define Bit_16 (1 << 16)
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#define Bit_17 (1 << 17)
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#define Bit_18 (1 << 18)
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#define Bit_19 (1 << 19)
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#define Bit_20 (1 << 20)
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#define Bit_21 (1 << 21)
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#define Bit_22 (1 << 22)
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#define Bit_23 (1 << 23)
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#define Bit_24 (1 << 24)
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#define Bit_25 (1 << 25)
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#define Bit_26 (1 << 26)
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#define Bit_27 (1 << 27)
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#define Bit_28 (1 << 28)
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#define Bit_29 (1 << 29)
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#define Bit_30 (1 << 30)
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#define Bit_31 (1 << 31)
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#define Byte_0 (0xFFU)
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#define Byte_1 (0xFFU << 8)
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#define Byte_2 (0xFFU << 16)
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#define Byte_3 (0xFFU << 24)
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#define Byte_4 (0xFFU << 32)
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#define Byte_5 (0xFFU << 40)
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#define Byte_6 (0xFFU << 48)
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#define Byte_7 (0xFFU << 56)
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#define bytes(n) (n)
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#define Kbytes(n) (bytes(n) * 1024)
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#define Mbytes(n) (Kbytes(n) * 1024)
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#define Gbytes(n) (Mbytes(n) * 1024)
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#define Tbytes(n) (Gbytes(n) * 1024)
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#endif
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