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| author | Jérémy Zurcher <jeremy@asynk.ch> | 2010-07-09 12:32:17 +0200 |
|---|---|---|
| committer | Jérémy Zurcher <jeremy@asynk.ch> | 2010-07-09 12:32:17 +0200 |
| commit | 6c027b4de25a529908be895e7ff19236f4002a57 (patch) | |
| tree | f70d3a400bbb9ba8a83e9d4ffcaa4b6e367fc8bb /douint.c | |
| download | crypto-6c027b4de25a529908be895e7ff19236f4002a57.zip crypto-6c027b4de25a529908be895e7ff19236f4002a57.tar.gz | |
initial commit, resurrect one of my realy old projects
Diffstat (limited to 'douint.c')
| -rw-r--r-- | douint.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/douint.c b/douint.c new file mode 100644 index 0000000..bccf4a9 --- /dev/null +++ b/douint.c @@ -0,0 +1,76 @@ +#include <stdio.h> +int main(void) +{ + unsigned char us; /* using short makes twofish colapse */ + unsigned int ui; + unsigned long ul; + unsigned long long ull; + + printf("#ifndef _UINT_H\n#define _UINT_H\n\n"); + printf(" /* This file was auto-generated. Do not edit! */\n\n"); + /* u8 */ + us = 1<<6; + us += us; + if(us)printf("typedef unsigned char u8;\n\n"); + else{ + ui = 1<<6; + ui += ui; + if(ui) printf("typedef unsigned int u8;\n\n"); + } + printf("#define U8_MAX 0xFF\n\n"); + + /* u16 */ + ui = 1<<14; + ui += ui; + if(ui)printf("typedef unsigned int u16;\n\n"); + else{ + ul = 1<<14; + ul += ul; + if(ul) printf("typedef unsigned long u16;\n\n"); + } + printf("#define U16_MAX 0xFFFF\n\n"); + + /* u32 */ + ui = 1<<30; + ui += ui; + if(ui)printf("typedef unsigned int u32;\n\n"); + else{ + ul = 1<<30; + ul += ul; + if(ul) printf("typedef unsigned long u32;\n\n"); + else{ + ull = 1<<30; + ull += ull; + if(ull) printf("typedef unsigned long long u32;\n\n"); + } + } + printf("#define U32_MAX 0xFFFFFFFF\n\n"); + + /* u64 */ + ui = 1<<31; + ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; + ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; + ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; + ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; ui += ui; + if(ui)printf("typedef unsigned int u64;\n\n"); + else{ + ul = 1<<31; + ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; + ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; + ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; + ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; ul += ul; + if(ul) printf("typedef unsigned long u64;\n\n"); + else{ + ull = 1<<31; + ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; + ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; + ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; + ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; ull += ull; + if(ull) printf("typedef unsigned long long u64;\n\n"); + else printf(" * no u64 available !! *\n\n"); + } + } + printf("#define U64_MAX 0xFFFFFFFFFFFFFFFF\n\n"); + printf("#endif\n"); + return 0; +} |