define preprocesor definition

define NON_AMBIGOUS_OVERLOAD to prevent ambiguous overload
and use int instead of long to prevent ambiguous overload errors

meson.build

@@ -46,6 +46,8 @@ sqlitecpp_deps = [
     sqlite3_dep,
     thread_dep,
 ]
+## used to override the default sqlitecpp options like cpp standard
+sqlitecpp_opts = []
 
 ## tests
 
@@ -59,6 +61,10 @@ sqlitecpp_test_srcs = [
     'tests/Exception_test.cpp',
     'tests/ExecuteMany_test.cpp',
 ]
+sqlitecpp_test_args = [
+    # do not use ambiguous overloads by default
+    '-DNON_AMBIGOUS_OVERLOAD'
+]
 
 ## samples
 
@@ -131,10 +137,11 @@ libsqlitecpp = library(
     include_directories: sqlitecpp_incl,
     cpp_args: sqlitecpp_args,
     dependencies: sqlitecpp_deps,
+    # override the default options
+    override_options: sqlitecpp_opts,
     # install: true,
     # API version for SQLiteCpp shared library.
-    version: '0',
+    version: '0',)
-)
 
 install_headers(
     'include/SQLiteCpp/SQLiteCpp.h',
@@ -164,10 +171,12 @@ if get_option('SQLITECPP_BUILD_TESTS')
         sqlitecpp_dep,
         sqlite3_dep,
     ]
-    sqlitecpp_test_args = []
 
     testexe = executable('testexe', sqlitecpp_test_srcs,
-                     dependencies: sqlitecpp_test_dependencies)
+                     dependencies: sqlitecpp_test_dependencies,
+                     cpp_args: sqlitecpp_test_args,
+                     # override the default options
+                     override_options: sqlitecpp_opts,)
 
     test_args = []
 
@@ -177,7 +186,9 @@ if get_option('SQLITECPP_BUILD_EXAMPLES')
     ## demo executable
     sqlitecpp_demo_exe = executable('SQLITECPP_sample_demo',
                             sqlitecpp_sample_srcs,
-                            dependencies: sqlitecpp_dep)
+                            dependencies: sqlitecpp_dep,
+                            # override the default options
+                            override_options: sqlitecpp_opts,)
 endif
 
 pkgconfig = import('pkgconfig')

tests/Statement_test.cpp

@@ -374,7 +374,12 @@ TEST(Statement, bindings)
     // Sixth row with uint32_t unsigned value and a long value (which is either a 32b int or a 64b long long)
     {
         const uint32_t  uint32 = 4294967295U;
+        // preprocessor define to force not use long and use instead uint
+        #if NON_AMBIGOUS_OVERLOAD
+        const int       integer = -123;
+        #else
         const long      integer = -123;
+        #endif
         insert.bind(2, uint32);
         insert.bind(3, integer);
         EXPECT_EQ(1, insert.exec());
@@ -493,7 +498,11 @@ TEST(Statement, bindByName)
     {
         const std::string   second("second");
         const int64_t       int64 = 12345678900000LL;
+        #if NON_AMBIGOUS_OVERLOAD
+        const int           integer = -123;
+        #else
         const long          integer = -123;
+        #endif
         const float         float32 = 0.234f;
         insert.bind("@msg",      second);
         insert.bind("@int",      int64);
@@ -606,7 +615,11 @@ TEST(Statement, bindByNameString)
     {
         const std::string   second("second");
         const int64_t       int64 = 12345678900000LL;
+        #if NON_AMBIGOUS_OVERLOAD
+        const int           integer = -123;
+        #else
         const long          integer = -123;
+        #endif
         const float         float32 = 0.234f;
         insert.bind(amsg, second);
         insert.bind(aint, int64);