switch tests to iostream fully

Author: ZERICO2005

test/standalone/cxx_stl/makefile

@@ -12,6 +12,7 @@ CFLAGS = -Wall -Wextra -Wno-deprecated-declarations -std=c17 -Oz
 CXXFLAGS = -Wall -Wextra -Wno-deprecated-declarations -std=c++20 -Oz
 
 PREFER_OS_LIBC = NO
+HAS_PRINTF = YES
 
 # ----------------------------
 

test/standalone/cxx_stl/src/main.cpp

@@ -42,7 +42,11 @@ int run_tests(void) {
     return ret;
 }
 
+extern "C" void init_iostream(void);
+
 int main(void) {
+    init_iostream();
+
     os_ClrHome();
     int failed_test = run_tests();
     if (failed_test != 0) {

test/standalone/iostream/makefile

@@ -12,6 +12,7 @@ CFLAGS = -Wall -Wextra -std=c17 -Oz
 CXXFLAGS = -Wall -Wextra -std=c++20 -Oz
 
 PREFER_OS_LIBC = NO
+HAS_PRINTF = YES
 
 # ----------------------------
 

test/standalone/iostream/src/main.cpp

@@ -5,12 +5,18 @@
 #include <cstdio>
 #include <iostream>
 
+extern "C" void init_iostream(void);
+
 int main(void) {
+    init_iostream();
+
     os_ClrHome();
 
     int value = 123;
+    printf("start: %d\n", value);
+
     volatile bool* test = (volatile bool*)0xE40000;
-    if (*test) {
+    if (true || *test) {
         std::cout << value;
     }