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-rw-r--r--src/sat/satoko/solver_api.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/sat/satoko/solver_api.c b/src/sat/satoko/solver_api.c
index 0193b1c3..4775e445 100644
--- a/src/sat/satoko/solver_api.c
+++ b/src/sat/satoko/solver_api.c
@@ -259,7 +259,7 @@ int satoko_add_clause(solver_t *s, int *lits, int size)
unsigned max_var;
unsigned cref;
- qsort((void *) lits, size, sizeof(unsigned), stk_uint_compare);
+ qsort((void *) lits, (size_t)size, sizeof(unsigned), stk_uint_compare);
max_var = lit2var(lits[size - 1]);
while (max_var >= vec_act_size(s->activity))
satoko_add_variable(s, SATOKO_LIT_FALSE);