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| author | augustss <augustss@pkgsrc.org> | 2005-02-02 11:22:42 +0000 |
|---|---|---|
| committer | augustss <augustss@pkgsrc.org> | 2005-02-02 11:22:42 +0000 |
| commit | b750a675b29defac3b8de7c34623e8bcd9e2c83f (patch) | |
| tree | 6b1df9a2a435a21dfa8fb2395363800f06fe7f70 /misc/libquantum/patches | |
| parent | a6f8c45bfc8152da7d516442cdc147108ffb4f58 (diff) | |
| download | pkgsrc-b750a675b29defac3b8de7c34623e8bcd9e2c83f.tar.gz | |
Fix a bug in quantum_measure() that returns the wrong state when measuring
a quantum register.
Diffstat (limited to 'misc/libquantum/patches')
| -rw-r--r-- | misc/libquantum/patches/patch-aa | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/misc/libquantum/patches/patch-aa b/misc/libquantum/patches/patch-aa new file mode 100644 index 00000000000..e6ef630fead --- /dev/null +++ b/misc/libquantum/patches/patch-aa @@ -0,0 +1,36 @@ +*** measure.c.old Tue Jan 11 22:12:21 2005 +--- measure.c Wed Feb 2 12:17:54 2005 +*************** +*** 39,45 **** + double + quantum_frand() + { +! return (double) rand() / RAND_MAX; + } + + /* Measure the contents of a quantum register */ +--- 39,45 ---- + double + quantum_frand() + { +! return (double) random() / RAND_MAX; + } + + /* Measure the contents of a quantum register */ +*************** +*** 64,70 **** + result. Otherwise, continue with the next base state. */ + + r -= quantum_prob_inline(reg.node[i].amplitude); +! if(quantum_prob_inline(reg.node[i].amplitude) >= r) + return reg.node[i].state; + } + +--- 64,70 ---- + result. Otherwise, continue with the next base state. */ + + r -= quantum_prob_inline(reg.node[i].amplitude); +! if(0 >= r) + return reg.node[i].state; + } + |