Fix 128-bit integer overflow

kimwalisch · Mar 27, 2023 · b562048 · b562048
1 parent 930073a
commit b562048
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Showing 2 changed files with 5 additions and 5 deletions.
diff --git a/test/api.cpp b/test/api.cpp
@@ -56,8 +56,8 @@ int main()
   std::cout << "pi(" << in << ") = " << out;
   check(out == "0");
 
-  // Test using INT128_MIN
-  in = "-170141183460469231731687303715884105728";
+  // Test using INT128_MIN+1
+  in = "-170141183460469231731687303715884105727";
   out = pi(in);
   std::cout << "pi(" << in << ") = " << out;
   check(out == "0");  

diff --git a/test/api_c.c b/test/api_c.c
@@ -58,9 +58,9 @@ int main(void)
     printf("primecount_pi_str(-1208925819614629174696176) = %s", out);
     check(strcmp(out, "0") == 0);
 
-    // Test using INT128_MIN
-    primecount_pi_str("-170141183460469231731687303715884105728", out, sizeof(out));
-    printf("primecount_pi_str(-170141183460469231731687303715884105728) = %s", out);
+    // Test using INT128_MIN+1
+    primecount_pi_str("-170141183460469231731687303715884105727", out, sizeof(out));
+    printf("primecount_pi_str(-170141183460469231731687303715884105727) = %s", out);
     check(strcmp(out, "0") == 0);
   }