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author | Alon Zakai <alonzakai@gmail.com> | 2014-01-03 15:16:17 -0800 |
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committer | Alon Zakai <alonzakai@gmail.com> | 2014-01-03 15:16:17 -0800 |
commit | 8478d6aee54d6c52de16d8c58309534afbf5bf9e (patch) | |
tree | bec73fd8e0cd6888d2dfb6b9e6a1423cc2432f61 /tests/core/closebitcasts.c | |
parent | 1a007b1631509b9d72499a8f4402294017ee04dc (diff) | |
parent | a8e26049c1a72fa6b19dac45fa2b44616f94241a (diff) |
Merge branch 'incoming'
Diffstat (limited to 'tests/core/closebitcasts.c')
-rw-r--r-- | tests/core/closebitcasts.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tests/core/closebitcasts.c b/tests/core/closebitcasts.c new file mode 100644 index 00000000..2c9d5ab5 --- /dev/null +++ b/tests/core/closebitcasts.c @@ -0,0 +1,32 @@ +#include <stdio.h> + +int main(int argc, char **argv) { + float x = argc%17, y = (argc+1)*(argc+2)*(argc+3)*(argc+4)*(argc*5); + y *= 1<<30; + y *= -13; + if (argc == 17) { x++; y--; } + int *xi = (int*)&x; + int *yi = (int*)&y; + int z = *xi - *yi; + while (z % 15) { + z++; + } + printf("!%d\n", z); + + double xd = x, yd = y; + yd = yd*yd; + yd = yd*yd; + int *xl = (int*)&xd; + int *xh = &((int*)&xd)[1]; + int *yl = (int*)&yd; + int *yh = &((int*)&yd)[1]; + int l = *xl - *yl; + int h = *xh - *yh; + while (l % 15) { + l++; + h += 3; + } + printf("%d,%d!\n", l, h); + return 0; +} + |