enabled and mitigated debug warnings in cfg tests

cfg/cairo.cfg

@@ -6,6 +6,7 @@
   <define name="cairo_bool_t" value="int"/>
   <!-- TODO: Configure cairo_status_t as an enum when this is implemented in Cppcheck -->
   <podtype name="cairo_status_t"/>
+  <define name="CAIRO_STATUS_READ_ERROR" value="10"/>
   <!-- ########## cairo Macros / Defines ########## -->
   <define name="CAIRO_HAS_MIME_SURFACE" value="1"/>
   <define name="CAIRO_MIME_TYPE_CCITT_FAX" value="&quot;image/g3fax&quot;"/>

cfg/gtk.cfg

@@ -2,6 +2,8 @@
 <!-- This file once has been generated automatically. See https://github.com/scriptum/cppcheck-libs -->
 <!-- Now it is maintained and extended manually. -->
 <def format="2">
+  <define name="TRUE" value="(!FALSE)"/>
+  <define name="FALSE" value="(0)"/>
   <define name="g_return_if_fail(expr)" value="do{if(!(expr)){return;}}while(0)"/>
   <define name="g_return_val_if_fail(expr, val)" value="do{if(!(expr)){return val;}}while(0)"/>
   <define name="g_return_if_reached()" value="do{return;}while(0)"/>

test/CMakeLists.txt

@@ -113,17 +113,22 @@ if (BUILD_TESTS)
             else()
                 # TODO: remove missingInclude disabling when it no longer is implied by --enable=information
                 # TODO: add syntax check
+                # need to suppress unmatchedSuppression in case valueFlowBailout is not reported
                 add_test(NAME cfg-${TEST_NAME}
                         COMMAND $<TARGET_FILE:cppcheck>
+                        --library=${LIBRARY}
                         --check-library
                         --platform=${PLATFORM}
-                        --library=${LIBRARY}
                         --enable=style,information
                         --inconclusive
                         --force
                         --error-exitcode=1
                         --disable=missingInclude
                         --inline-suppr
+                        --template="{file}:{line}:{severity}:{id}:{message}"
+                        --debug-warnings
+                        --suppress=valueFlowBailout
+                        --suppress=unmatchedSuppression
                         ${CMAKE_CURRENT_SOURCE_DIR}/cfg/${CFG_TEST}
                 )
             endif()

test/cfg/boost.cpp

@@ -83,6 +83,7 @@ void macros()
     BOOST_PP_REPEAT(5, DECL, int x)
 
     BOOST_SCOPED_ENUM_DECLARE_BEGIN(future_errc) {
+        // cppcheck-suppress valueFlowBailoutIncompleteVar
         no_state
     }
     BOOST_SCOPED_ENUM_DECLARE_END(future_errc)

test/cfg/gnu.c

@@ -316,6 +316,7 @@ void valid_code(int argInt1, va_list valist_arg, const int * parg)
 
     if (__alignof__(int) == 4) {}
 
+    // cppcheck-suppress valueFlowBailoutIncompleteVar
     const void * p_mmap = mmap(NULL, 1, PROT_NONE, MAP_ANONYMOUS | MAP_SHARED, -1, 0);
     printf("%p", p_mmap);
     munmap(p_mmap, 1);

test/cfg/googletest.cpp

@@ -15,12 +15,15 @@ namespace ExampleNamespace {
     constexpr long long TOLERANCE = 10;
 
     // #9397 syntaxError when MATCHER_P is not known
+    // cppcheck-suppress symbolDatabaseWarning
     MATCHER_P(ExampleMatcherPTest, expected, "")
     {
+        // cppcheck-suppress valueFlowBailoutIncompleteVar
         return ((arg <= (expected + TOLERANCE)) && (arg >= (expected - TOLERANCE)));
     }
 
     // syntaxError when MATCHER is not known
+    // cppcheck-suppress symbolDatabaseWarning
     MATCHER(ExampleMatcherTest, "")
     {
         return (arg == TOLERANCE);

test/cfg/gtk.c

@@ -289,6 +289,7 @@ void g_new_if_test()
     };
 
     const struct a * pNew3;
+    // cppcheck-suppress valueFlowBailoutIncompleteVar
     if (pNew3 = g_new(struct a, 6)) {
         printf("%p", pNew3);
     }

test/cfg/libcurl.c

@@ -15,6 +15,7 @@ void validCode()
     CURL *curl = curl_easy_init();
     if (curl) {
         CURLcode res;
+        // cppcheck-suppress valueFlowBailoutIncompleteVar
         curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
         res = curl_easy_perform(curl);
         if (res != CURLE_OK) {

test/cfg/opencv2.cpp

@@ -14,6 +14,7 @@
 void validCode(const char* argStr)
 {
     cv::Mat image;
+    // cppcheck-suppress valueFlowBailoutIncompleteVar
     image = cv::imread(argStr, cv::IMREAD_COLOR);
     if (!image.data) {
         printf("No image data \n");

test/cfg/posix.c

@@ -880,6 +880,7 @@ void validCode(va_list valist_arg1, va_list valist_arg2)
     void *ptr;
     if (posix_memalign(&ptr, sizeof(void *), sizeof(void *)) == 0)
         free(ptr);
+    // cppcheck-suppress valueFlowBailoutIncompleteVar
     syslog(LOG_ERR, "err %u", 0U);
     syslog(LOG_WARNING, "warn %d %d", 5, 1);
     vsyslog(LOG_EMERG, "emerg %d", valist_arg1);

test/cfg/qt.cpp

@@ -316,7 +316,7 @@ QVector<int>::iterator QVector2()
 // cppcheck-suppress passedByValue
 void duplicateExpression_QString_Compare(QString style) //#8723
 {
-    // cppcheck-suppress duplicateExpression
+    // cppcheck-suppress [duplicateExpression,valueFlowBailoutIncompleteVar]
     if (style.compare( "x", Qt::CaseInsensitive ) == 0 || style.compare( "x", Qt::CaseInsensitive ) == 0)
     {}
 }

test/cfg/runtests.sh

@@ -2,6 +2,8 @@
 set -e # abort on error
 #set -x # be verbose
 
+# TODO: do not bail out on first error - always run all tests and return error instead
+
 function exit_if_strict {
     if [ -n "${STRICT}" ] && [ "${STRICT}" -eq 1 ]; then
       exit 1
@@ -24,7 +26,8 @@ CFG="$DIR"../../cfg/
 
 # TODO: remove missingInclude disabling when it no longer is implied by --enable=information
 # Cppcheck options
-CPPCHECK_OPT='--check-library --platform=unix64 --enable=style,information --inconclusive --force --error-exitcode=-1 --disable=missingInclude --inline-suppr --template="{file}:{line}:{severity}:{id}:{message}"'
+# need to suppress unmatchedSuppression in case valueFlowBailout is not reported
+CPPCHECK_OPT='--check-library --platform=unix64 --enable=style,information --inconclusive --force --error-exitcode=-1 --disable=missingInclude --inline-suppr --template="{file}:{line}:{severity}:{id}:{message}" --debug-warnings --suppress=valueFlowBailout --suppress=unmatchedSuppression'
 
 # Compiler settings
 CXX=g++
@@ -33,6 +36,7 @@ CC=gcc
 CC_OPT='-fsyntax-only -w -std=c11'
 
 function get_pkg_config_cflags {
+    # TODO: get rid of the error enabling/disabling?
     set +e
     PKGCONFIG=$(pkg-config --cflags "$@")
     PKGCONFIG_RETURNCODE=$?
@@ -65,6 +69,7 @@ function qt_fn {
         if [ -n "$QTCONFIG" ]; then
             QTBUILDCONFIG=$(pkg-config --variable=qt_config Qt5Core Qt5Test)
             [[ $QTBUILDCONFIG =~ (^|[[:space:]])reduce_relocations($|[[:space:]]) ]] && QTCONFIG="${QTCONFIG} -fPIC"
+            # TODO: get rid of the error enabling/disabling?
             set +e
             echo -e "#include <QString>" | ${CXX} ${CXX_OPT} ${QTCONFIG} -x c++ -
             QTCHECK_RETURNCODE=$?
@@ -107,6 +112,7 @@ function windows_fn {
 
 # wxwidgets.cpp
 function wxwidgets_fn {
+    # TODO: get rid of the error enabling/disabling?
     set +e
     WXCONFIG=$(wx-config --cxxflags)
     WXCONFIG_RETURNCODE=$?
@@ -115,6 +121,7 @@ function wxwidgets_fn {
         echo "wx-config does not work, skipping syntax check for wxWidgets tests."
         exit_if_strict
     else
+        # TODO: get rid of the error enabling/disabling?
         set +e
         echo -e "#include <wx/filefn.h>\n#include <wx/app.h>\n#include <wx/artprov.h>\n#include <wx/version.h>\n#if wxVERSION_NUMBER<2950\n#error \"Old version\"\n#endif" | ${CXX} ${CXX_OPT} ${WXCONFIG} -x c++ -
         WXCHECK_RETURNCODE=$?
@@ -137,6 +144,7 @@ function gtk_fn {
             GTKCONFIG=$(get_pkg_config_cflags gtk+-2.0)
         fi
         if [ -n "$GTKCONFIG" ]; then
+            # TODO: get rid of the error enabling/disabling?
             set +e
             echo -e "#include <gtk/gtk.h>" | ${CC} ${CC_OPT} ${GTKCONFIG} -x c -
             GTKCHECK_RETURNCODE=$?
@@ -157,6 +165,7 @@ function gtk_fn {
 
 # boost.cpp
 function boost_fn {
+    # TODO: get rid of the error enabling/disabling?
     set +e
     echo -e "#include <boost/config.hpp>" | ${CXX} ${CXX_OPT} -x c++ -
     BOOSTCHECK_RETURNCODE=$?
@@ -175,6 +184,7 @@ function sqlite3_fn {
     if [ $HAS_PKG_CONFIG -eq 1 ]; then
         SQLITE3CONFIG=$(get_pkg_config_cflags sqlite3)
         if [ -n "$SQLITE3CONFIG" ]; then
+            # TODO: get rid of the error enabling/disabling?
             set +e
             echo -e "#include <sqlite3.h>" | ${CC} ${CC_OPT} ${SQLITE3CONFIG} -x c -
             SQLITE3CHECK_RETURNCODE=$?
@@ -206,6 +216,7 @@ function python_fn {
     if [ $HAS_PKG_CONFIG -eq 1 ]; then
         PYTHON3CONFIG=$(get_pkg_config_cflags python3)
         if [ -n "$PYTHON3CONFIG" ]; then
+            # TODO: get rid of the error enabling/disabling?
             set +e
             echo -e "#include <Python.h>" | ${CC} ${CC_OPT} ${PYTHON3CONFIG} -x c -
             PYTHON3CONFIG_RETURNCODE=$?
@@ -229,6 +240,7 @@ function lua_fn {
     if [ $HAS_PKG_CONFIG -eq 1 ]; then
         LUACONFIG=$(get_pkg_config_cflags lua-5.3)
         if [ -n "$LUACONFIG" ]; then
+            # TODO: get rid of the error enabling/disabling?
             set +e
             echo -e "#include <lua.h>" | ${CC} ${CC_OPT} ${LUACONFIG} -x c -
             LUACONFIG_RETURNCODE=$?
@@ -252,6 +264,7 @@ function libcurl_fn {
     if [ $HAS_PKG_CONFIG -eq 1 ]; then
         LIBCURLCONFIG=$(get_pkg_config_cflags libcurl)
         if [ -n "$LIBCURLCONFIG" ]; then
+            # TODO: get rid of the error enabling/disabling?
             set +e
             echo -e "#include <curl/curl.h>" | ${CC} ${CC_OPT} ${LIBCURLCONFIG} -x c -
             LIBCURLCONFIG_RETURNCODE=$?
@@ -275,6 +288,7 @@ function cairo_fn {
     if [ $HAS_PKG_CONFIG -eq 1 ]; then
         CAIROCONFIG=$(get_pkg_config_cflags cairo)
         if [ -n "$CAIROCONFIG" ]; then
+            # TODO: get rid of the error enabling/disabling?
             set +e
             echo -e "#include <cairo.h>" | ${CC} ${CC_OPT} ${CAIROCONFIG} -x c -
             CAIROCONFIG_RETURNCODE=$?
@@ -300,6 +314,7 @@ function googletest_fn {
 
 # kde.cpp
 function kde_fn {
+    # TODO: get rid of the error enabling/disabling?
     set +e
     KDECONFIG=$(kde4-config --path include)
     KDECONFIG_RETURNCODE=$?
@@ -313,6 +328,7 @@ function kde_fn {
             echo "Suitable Qt not present, Qt is necessary for KDE. Skipping syntax check."
             exit_if_strict
         else
+            # TODO: get rid of the error enabling/disabling?
             set +e
             echo -e "#include <KDE/KGlobal>\n" | ${CXX} ${CXX_OPT} -I${KDECONFIG} ${KDEQTCONFIG} -x c++ -
             KDECHECK_RETURNCODE=$?
@@ -333,6 +349,7 @@ function libsigcpp_fn {
     if [ $HAS_PKG_CONFIG -eq 1 ]; then
         LIBSIGCPPCONFIG=$(get_pkg_config_cflags sigc++-2.0)
         if [ -n "$LIBSIGCPPCONFIG" ]; then
+            # TODO: get rid of the error enabling/disabling?
             set +e
             echo -e "#include <sigc++/sigc++.h>\n" | ${CXX} ${CXX_OPT} ${LIBSIGCPPCONFIG} -x c++ -
             LIBSIGCPPCONFIG_RETURNCODE=$?
@@ -356,6 +373,7 @@ function openssl_fn {
     if [ $HAS_PKG_CONFIG -eq 1 ]; then
         OPENSSLCONFIG=$(get_pkg_config_cflags libssl)
         if [ -n "$OPENSSLCONFIG" ]; then
+            # TODO: get rid of the error enabling/disabling?
             set +e
             echo -e "#include <openssl/ssl.h>" | ${CC} ${CC_OPT} ${OPENSSLCONFIG} -x c -
             OPENSSLCONFIG_RETURNCODE=$?
@@ -379,6 +397,7 @@ function opencv2_fn {
     if [ $HAS_PKG_CONFIG -eq 1 ]; then
         OPENCVCONFIG=$(get_pkg_config_cflags opencv)
         if [ -n "$OPENCVCONFIG" ]; then
+            # TODO: get rid of the error enabling/disabling?
             set +e
             echo -e "#include <opencv2/opencv.hpp>\n" | ${CXX} ${CXX_OPT} ${OPENCVCONFIG} -x c++ -
             OPENCVCONFIG_RETURNCODE=$?

test/cfg/sqlite3.c

@@ -16,7 +16,7 @@ void validCode()
 
     int rc = sqlite3_open("/db", &db);
     if (rc != SQLITE_OK) {
-        fprintf(stderr, "Error opening sqlite3 db: %s\n", sqlite3_errmsg(db));
+        printf("Error opening sqlite3 db: %s\n", sqlite3_errmsg(db));
         sqlite3_close(db);
     } else {
         sqlite3_close(db);

test/cfg/std.c

@@ -185,6 +185,7 @@ size_t bufferAccessOutOfBounds_wcsrtombs(char * dest, const wchar_t ** src, size
 void bufferAccessOutOfBounds(void)
 {
     char a[5];
+    // cppcheck-suppress valueFlowBailoutIncompleteVar
     fgets(a,5,stdin);
     // cppcheck-suppress bufferAccessOutOfBounds
     fgets(a,6,stdin);

test/cfg/std.cpp

@@ -588,6 +588,7 @@ void *bufferAccessOutOfBounds_memchr(void *s, int c, size_t n)
 #ifdef __STDC_LIB_EXT1__
 void uninitvar_localtime_s(const std::time_t *restrict time, struct tm *restrict result)
 {
+    // cppcheck-suppress valueFlowBailoutIncompleteVar
     const std::time_t *restrict Time;
     // TODO cppcheck-suppress uninitvar
     (void)std::localtime_s(Time, result);
@@ -640,6 +641,7 @@ void invalidFunctionArg_std_string_substr(const std::string &str, std::size_t po
     (void)str.substr(pos,-1);
     // no warning is expected for
     (void)str.substr(pos,len);
+    // cppcheck-suppress valueFlowBailoutIncompleteVar
     (void)str.substr(pos, std::string::npos);
 }
 
@@ -4602,8 +4604,10 @@ void stdbind()
     std::bind(stdbind_helper, 1);
 
     // TODO cppcheck-suppress unreadVariable
+    // cppcheck-suppress autoNoType
     auto f1 = std::bind(stdbind_helper, _1);
     // TODO cppcheck-suppress unreadVariable
+    // cppcheck-suppress autoNoType
     auto f2 = std::bind(stdbind_helper, 10);
 }
 
@@ -4778,6 +4782,7 @@ void smartPtr_get()
 
 void smartPtr_get2(std::vector<std::unique_ptr<int>>& v)
 {
+    // cppcheck-suppress autoNoType
     for (auto& u : v) {
         int* p = u.get();
         *p = 0;

test/cfg/windows.cpp

@@ -234,6 +234,7 @@ void validCode()
     hSemaphore1 = CreateSemaphore(NULL, 0, 1, NULL);
     CloseHandle(hSemaphore1);
     HANDLE hSemaphore2;
+    // cppcheck-suppress valueFlowBailoutIncompleteVar
     hSemaphore2 = CreateSemaphoreEx(NULL, 0, 1, NULL, 0, SEMAPHORE_ALL_ACCESS);
     CloseHandle(hSemaphore2);
     HANDLE hSemaphore3;