Library: Started to test functions from std-namespace.

cfg/std.cfg

@@ -4594,7 +4594,7 @@
     </arg>
   </function>
   <!-- char *strncpy(char *s, const char *ct, size_t n); -->
-  <function name="strncpy">
+  <function name="strncpy,std::strncpy">
     <noreturn>false</noreturn>
     <leak-ignore/>
     <arg nr="1">

test/cfg/runtests.sh

@@ -9,23 +9,30 @@ else # assume we are in repo root
 	DIR=./test/cfg/
 fi
 
+# Cppcheck options
+CPPCHECK_OPT='--check-library --enable=information --enable=style --error-exitcode=1 --suppress=missingIncludeSystem --inline-suppr'
+
 # Compiler settings
 CXX=g++
+CXX_OPT='-fsyntax-only'
 CC=gcc
 CC_OPT='-Wno-nonnull -fsyntax-only'
 
 # posix.c
 ${CC} ${CC_OPT} ${DIR}posix.c
-${CPPCHECK} --check-library --library=posix --enable=information --enable=style --error-exitcode=1 --suppress=missingIncludeSystem --inline-suppr ${DIR}posix.c
+${CPPCHECK} ${CPPCHECK_OPT} --library=posix  ${DIR}posix.c
 
 # gnu.c
 ${CC} ${CC_OPT} -D_GNU_SOURCE ${DIR}gnu.c
-${CPPCHECK} --check-library --library=gnu --enable=information --enable=style --error-exitcode=1 --suppress=missingIncludeSystem --inline-suppr ${DIR}gnu.c
+${CPPCHECK} ${CPPCHECK_OPT} --library=gnu ${DIR}gnu.c
-
-# windows.cpp
-#${CXX} -fsyntax-only ${DIR}windows.cpp
-${CPPCHECK} --check-library --library=windows --enable=information --enable=style --error-exitcode=1 --inline-suppr ${DIR}windows.cpp
 
 # std.c
 ${CC} ${CC_OPT} ${DIR}std.c
-${CPPCHECK} --check-library --enable=information --error-exitcode=1 --enable=style --suppress=missingIncludeSystem --inline-suppr ${DIR}std.c
+${CPPCHECK} ${CPPCHECK_OPT} ${DIR}std.c
+${CXX} ${CXX_OPT} ${DIR}std.cpp
+${CPPCHECK} ${CPPCHECK_OPT} ${DIR}std.cpp
+
+# windows.cpp
+#${CXX} -fsyntax-only ${DIR}windows.cpp
+${CPPCHECK} --check-library --enable=information --enable=style --error-exitcode=1 --inline-suppr --library=windows ${DIR}windows.cpp
+

test/cfg/std.cpp

@@ -0,0 +1,25 @@
+
+// Test library configuration for std.cfg
+//
+// Usage:
+// $ cppcheck --check-library --enable=information --error-exitcode=1 --suppress=missingIncludeSystem --inline-suppr test/cfg/std.cpp
+// =>
+// No warnings about bad library configuration, unmatched suppressions, etc. exitcode=0
+//
+
+#include <cstring>
+#include <cstdio>
+#include <cstdlib>
+
+void bufferAccessOutOf(void) {
+  char a[5];
+  std::strcpy(a,"abcd");
+  // cppcheck-suppress bufferAccessOutOfBounds
+  // cppcheck-suppress redundantCopy
+  std::strcpy(a, "abcde");
+  // cppcheck-suppress redundantCopy
+  std::strncpy(a,"abcde",5);
+  // cppcheck-suppress bufferAccessOutOfBounds
+  // cppcheck-suppress redundantCopy
+  std::strncpy(a,"abcde",6);
+}