Compiler warnings.

src/aig/gia/giaUtil.c

@@ -2063,7 +2063,7 @@ void Gia_AigerWriteLut( Gia_Man_t * p, char * pFileName )
 ***********************************************************************/
 void Gia_ManDetectMuxes( Gia_Man_t * p )
 {
-    Gia_Obj_t * pObj, * pNodeT, * pNodeE; int i;
+    Gia_Obj_t * pObj = NULL, * pNodeT, * pNodeE; int i;
     Gia_ManForEachObj( p, pObj, i );
         if ( Gia_ObjIsAnd(pObj) && Gia_ObjRecognizeMux(pObj, &pNodeT, &pNodeE) )
             pObj->fMark0 = 1;

src/sat/satoko/satoko.h

@@ -84,8 +84,8 @@ extern void satoko_default_opts(satoko_opts_t *);
 extern void satoko_configure(satoko_t *, satoko_opts_t *);
 extern int  satoko_parse_dimacs(char *, satoko_t **);
 extern int  satoko_add_variable(satoko_t *, char);
-extern int  satoko_add_clause(satoko_t *, unsigned *, unsigned);
-extern void satoko_assump_push(satoko_t *s, unsigned);
+extern int  satoko_add_clause(satoko_t *, int *, int);
+extern void satoko_assump_push(satoko_t *s, int);
 extern void satoko_assump_pop(satoko_t *s);
 extern int  satoko_simplify(satoko_t *);
 extern int  satoko_solve(satoko_t *);

src/sat/satoko/solver_api.c

@@ -234,7 +234,7 @@ int satoko_add_variable(solver_t *s, char sign)
     return var;
 }
 
-int satoko_add_clause(solver_t *s, unsigned *lits, unsigned size)
+int satoko_add_clause(solver_t *s, int *lits, int size)
 {
     unsigned i, j;
     unsigned prev_lit;
@@ -249,10 +249,10 @@ int satoko_add_clause(solver_t *s, unsigned *lits, unsigned size)
     vec_uint_clear(s->temp_lits);
     j = 0;
     prev_lit = UNDEF;
-    for (i = 0; i < size; i++) {
-        if (lits[i] == lit_neg(prev_lit) || lit_value(s, lits[i]) == LIT_TRUE)
+    for (i = 0; i < (unsigned)size; i++) {
+        if ((unsigned)lits[i] == lit_neg(prev_lit) || lit_value(s, lits[i]) == LIT_TRUE)
             return SATOKO_OK;
-        else if (lits[i] != prev_lit && var_value(s, lit2var(lits[i])) == VAR_UNASSING) {
+        else if ((unsigned)lits[i] != prev_lit && var_value(s, lit2var(lits[i])) == VAR_UNASSING) {
             prev_lit = lits[i];
             vec_uint_push_back(s->temp_lits, lits[i]);
         }
@@ -270,7 +270,7 @@ int satoko_add_clause(solver_t *s, unsigned *lits, unsigned size)
     return SATOKO_OK;
 }
 
-void satoko_assump_push(solver_t *s, unsigned lit)
+void satoko_assump_push(solver_t *s, int lit)
 {
     vec_uint_push_back(s->assumptions, lit);
 }