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	generate-macros.c - blind - suckless command-line video editing utility
	git clone git://git.suckless.org/blind
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	---
	generate-macros.c (1924B)
	---
	1 /* See LICENSE file for copyright and license details. */
	2 #include <stdint.h>
	3 #include <stdio.h>
	4
	5 int
	6 main(void)
	7 {
	8 char u16 = (char )&(uint16_t){0x0001};
	9 char u32 = (char )&(uint32_t){0x00010203};
	10 char u64 = (char )&(uint64_t){0x0001020304050607};
	11 int le16 = (u16[1] == 0 && u16[0] == 1);
	12 int le32 = (u32[3] == 0 && u32[2] == 1 && u32[1] == 2 && u32[0] …
	13 int le64 = (u64[7] == 0 && u64[6] == 1 && u64[5] == 2 && u64[4] …
	14 u64[3] == 4 && u64[2] == 5 && u64[1] == 6 && u64[0] …
	15 int be16 = (u16[0] == 0 && u16[1] == 1);
	16 int be32 = (u32[0] == 0 && u32[1] == 1 && u32[2] == 2 && u32[3] …
	17 int be64 = (u64[0] == 0 && u64[1] == 1 && u64[2] == 2 && u64[3] …
	18 u64[4] == 4 && u64[5] == 5 && u64[6] == 6 && u64[7] …
	19
	20 if (le16)
	21 printf("#define HOST_ENDIAN_IS_LITTLE_ENDIAN_16\n");
	22 if (le32)
	23 printf("#define HOST_ENDIAN_IS_LITTLE_ENDIAN_32\n");
	24 if (le64)
	25 printf("#define HOST_ENDIAN_IS_LITTLE_ENDIAN_64\n");
	26 if (le16 && le32 && le64)
	27 printf("#define HOST_ENDIAN_IS_LITTLE_ENDIAN\n");
	28
	29 if (be16)
	30 printf("#define HOST_ENDIAN_IS_BIG_ENDIAN_16\n");
	31 if (be32)
	32 printf("#define HOST_ENDIAN_IS_BIG_ENDIAN_32\n");
	33 if (be64)
	34 printf("#define HOST_ENDIAN_IS_BIG_ENDIAN_64\n");
	35 if (be16 && be32 && be64)
	36 printf("#define HOST_ENDIAN_IS_BIG_ENDIAN\n");
	37
	38 if (sizeof(float) == 4) {
	39 unsigned long int a, b;
	40 a = (unsigned long int)(uint32_t )&(float){ (float)(1…
	41 b = (unsigned long int)(uint32_t )&(float){ -(float)(1…
	42 printf("#define USING_BINARY32 %i\n",
	43 a == 0x3daaaaabUL && b == 0xbdaaaaabUL);
	44 }
	45 if (sizeof(double) == 8) {
	46 unsigned long long int a, b;
	47 a = (unsigned long long int)(uint64_t )&(double){ 1. …
	48 b = (unsigned long long int)(uint64_t )&(double){ -1. …
	49 printf("#define USING_BINARY64 %i\n",
	50 a == 0x3fb5555555555555ULL && b == 0xbfb555555555…
	51 }
	52
	53 return 0;
	54 }