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author | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2020-03-03 08:17:40 +0100 |
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committer | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2020-03-03 08:17:40 +0100 |
commit | 1ab7b51c30e1b10ac45b0bd64cefdc01da0f7f68 (patch) | |
tree | 210ffc156c83f04fb0c61a40b4f9037d7ba8a7e1 /test/monniaux/quicksort/quicksort.c | |
parent | 222c9047d61961db9c6b19fed5ca49829223fd33 (diff) | |
parent | 12be46d59a2483a10d77fa8ee67f7e0ca1bd702f (diff) | |
download | compcert-kvx-1ab7b51c30e1b10ac45b0bd64cefdc01da0f7f68.tar.gz compcert-kvx-1ab7b51c30e1b10ac45b0bd64cefdc01da0f7f68.zip |
Merge branch 'mppa-cse2' of gricad-gitlab.univ-grenoble-alpes.fr:sixcy/CompCert into mppa-work
Diffstat (limited to 'test/monniaux/quicksort/quicksort.c')
-rw-r--r-- | test/monniaux/quicksort/quicksort.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/test/monniaux/quicksort/quicksort.c b/test/monniaux/quicksort/quicksort.c new file mode 100644 index 00000000..4b93ae7b --- /dev/null +++ b/test/monniaux/quicksort/quicksort.c @@ -0,0 +1,42 @@ +#include "quicksort.h" + +/* Rosetta Code */ +void quicksort(data *A, int len) { + if (len < 2) return; + + data pivot = A[len / 2]; + + int i, j; + for (i = 0, j = len - 1; ; i++, j--) { + while (A[i] < pivot) i++; + while (A[j] > pivot) j--; + + if (i >= j) break; + + data temp = A[i]; + A[i] = A[j]; + A[j] = temp; + } + + quicksort(A, i); + quicksort(A + i, len - i); +} + +data data_random(void) { + static uint64_t next = 1325997111; + next = next * 1103515249 + 12345; + return next; +} + +void data_vec_random(data *a, unsigned len) { + for(unsigned i=0; i<len; i++) { + a[i] = data_random(); + } +} + +bool data_vec_is_sorted(const data *a, unsigned len) { + for(unsigned i=0; i<len-1; i++) { + if (a[i] > a[i+1]) return false; + } + return true; +} |