diff --git a/cfg/posix.cfg b/cfg/posix.cfg
index b7d956996..813b2910e 100644
--- a/cfg/posix.cfg
+++ b/cfg/posix.cfg
@@ -52,6 +52,7 @@
     <arg nr="1" direction="in">
       <not-uninit/>
       <valid>0:255</valid>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -67,6 +68,7 @@
     <arg nr="1" direction="in">
       <not-uninit/>
       <valid>0:255</valid>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -82,6 +84,7 @@
     <arg nr="1" direction="in">
       <not-uninit/>
       <valid>0:255</valid>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -97,6 +100,7 @@
     <arg nr="1" direction="in">
       <not-uninit/>
       <valid>0:255</valid>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -112,6 +116,7 @@
     <arg nr="1" direction="in">
       <not-uninit/>
       <valid>0:255</valid>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -127,6 +132,7 @@
     <arg nr="1" direction="in">
       <not-uninit/>
       <valid>0:255</valid>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -142,6 +148,7 @@
     <arg nr="1" direction="in">
       <not-uninit/>
       <valid>0:255</valid>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -157,6 +164,7 @@
     <arg nr="1" direction="in">
       <not-uninit/>
       <valid>0:255</valid>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -172,6 +180,7 @@
     <arg nr="1" direction="in">
       <not-uninit/>
       <valid>0:255</valid>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -187,6 +196,7 @@
     <arg nr="1" direction="in">
       <not-uninit/>
       <valid>0:255</valid>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -201,6 +211,7 @@
     <leak-ignore/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:255</valid>
     </arg>
   </function>
@@ -451,6 +462,7 @@
     <leak-ignore/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="inout">
@@ -464,6 +476,7 @@
     <returnValue type="int"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="in">
@@ -478,6 +491,7 @@
     <leak-ignore/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="inout">
@@ -560,6 +574,7 @@
     <returnValue type="int"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -573,6 +588,7 @@
     <returnValue type="int"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="in">
@@ -587,6 +603,7 @@
     <returnValue type="int"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="in">
@@ -679,6 +696,7 @@
     <noreturn>false</noreturn>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-null/>
@@ -736,6 +754,7 @@ The obsolescent function 'usleep' is called. POSIX.1-2001 declares usleep() func
     <returnValue type="void"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
   </function>
   <!-- http://man7.org/linux/man-pages/man3/dirfd.3.html -->
@@ -757,6 +776,7 @@ The obsolescent function 'usleep' is called. POSIX.1-2001 declares usleep() func
     <returnValue type="int"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-null/>
@@ -891,6 +911,7 @@ The obsolescent function 'usleep' is called. POSIX.1-2001 declares usleep() func
     <returnValue type="struct servent *"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -927,6 +948,7 @@ The obsolescent function 'usleep' is called. POSIX.1-2001 declares usleep() func
     <returnValue type="struct netent *"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -983,6 +1005,7 @@ The obsolescent function 'usleep' is called. POSIX.1-2001 declares usleep() func
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="3" direction="in">
       <not-uninit/>
@@ -1166,6 +1189,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <leak-ignore/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-null/>
@@ -1185,6 +1209,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <leak-ignore/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-null/>
@@ -1202,6 +1227,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <leak-ignore/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-null/>
@@ -1223,6 +1249,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <leak-ignore/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-null/>
@@ -1296,6 +1323,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="int"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-null/>
@@ -1318,6 +1346,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="int"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-null/>
@@ -1326,6 +1355,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     </arg>
     <arg nr="3" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
   </function>
   <!-- int unlink(const char *pathname); -->
@@ -1426,6 +1456,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="mode_t"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
   </function>
   <!-- int fchmod(int fildes, mode_t mode); -->
@@ -1483,6 +1514,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="int"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="in">
@@ -1525,6 +1557,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="int"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="3" direction="in">
@@ -1540,6 +1573,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="int"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-null/>
@@ -1635,9 +1669,11 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="int"/>
     <arg nr="1">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="3">
       <not-uninit/>
@@ -1653,12 +1689,15 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <leak-ignore/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="3" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="4" direction="in">
       <not-null/>
@@ -1678,12 +1717,15 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <leak-ignore/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="3" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="4" direction="out">
       <not-null/>
@@ -1726,6 +1768,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="size_t"/>
     <arg nr="1">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="2">
       <not-uninit/>
@@ -1743,6 +1786,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="long int"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="in">
@@ -1781,6 +1825,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <noreturn>false</noreturn>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2">
@@ -1825,6 +1870,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     </arg>
     <arg nr="2">
       <not-uninit/>
+      <not-bool/>
     </arg>
   </function>
   <!-- int rand_r(unsigned int *seedp); -->
@@ -1881,16 +1927,19 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="ssize_t"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="3" direction="in">
       <not-uninit/>
     </arg>
     <arg nr="4" direction="in">
+      <not-bool/>
       <valid>1:</valid>
     </arg>
   </function>
@@ -1900,6 +1949,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="ssize_t"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="out">
@@ -1918,6 +1968,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="ssize_t"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="in">
@@ -1935,6 +1986,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="ssize_t"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="out">
@@ -1954,6 +2006,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="ssize_t"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="out">
@@ -1961,9 +2014,11 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     </arg>
     <arg nr="3" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="4" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="5" direction="out"/>
     <arg nr="6" direction="inout">
@@ -2007,6 +2062,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="ssize_t"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="in">
@@ -2014,6 +2070,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     </arg>
     <arg nr="3" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="4" direction="in">
       <not-uninit/>
@@ -2028,6 +2085,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="ssize_t"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="in">
@@ -2050,16 +2108,20 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>1:</valid>
     </arg>
     <arg nr="3" direction="in">
+      <not-bool/>
       <not-uninit/>
     </arg>
     <arg nr="4" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="5" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="6" direction="in">
@@ -2078,16 +2140,20 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>1:</valid>
     </arg>
     <arg nr="3" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="4" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="5" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="6" direction="in">
@@ -2120,6 +2186,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="3" direction="in">
       <not-uninit/>
@@ -2132,10 +2199,12 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="int"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="any">
       <not-uninit/>
@@ -2149,10 +2218,12 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <returnValue type="int"/>
     <arg nr="1" direction="in">
       <not-uninit/>
+      <not-bool/>
       <valid>0:</valid>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
+      <not-bool/>
     </arg>
     <arg nr="any">
       <not-uninit/>
diff --git a/test/cfg/posix.c b/test/cfg/posix.c
index a540f5a42..b973c8af9 100644
--- a/test/cfg/posix.c
+++ b/test/cfg/posix.c
@@ -22,6 +22,16 @@
 #include <pthread.h>
 #include <syslog.h>
 #include <stdarg.h>
+#include <ctype.h>
+#include <stdbool.h>
+
+bool invalidFunctionArgBool_isascii(bool b, int c)
+{
+    // cppcheck-suppress invalidFunctionArgBool
+    (void)isascii(b);
+    // cppcheck-suppress invalidFunctionArgBool
+    return isascii(c != 0);
+}
 
 void uninitvar_putenv(char * envstr)
 {