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diff --git a/‎cpp/autosar/src/rules/M27-0-1/CstdioMacrosUsed.ql
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diff --git a/‎cpp/autosar/src/rules/M27-0-1/CstdioTypesUsed.ql
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diff --git a/‎cpp/autosar/test/rules/M27-0-1/CstdioMacrosUsed.expected
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diff --git a/‎cpp/autosar/test/rules/M27-0-1/CstdioTypesUsed.expected
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diff --git a/‎cpp/autosar/test/rules/M27-0-1/test.cpp
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+1-1Lines changed: 1 addition & 1 deletion
@@ -22,7 +22,7 @@ from MacroInvocation mi
 where
   not isExcluded(mi, BannedLibrariesPackage::cstdioMacrosUsedQuery()) and
   mi.getMacroName() in [
-      "BUFSIZ", "EOF", "FILENAME_MAX", "FOPEN_MAX", "L_tmpnam", "NULL", "TMP_MAX", "_IOFBF",
-      "IOLBF", "_IONBF", "SEEK_CUR", "SEEK_END", "SEEK_SET"
+      "BUFSIZ", "EOF", "FILENAME_MAX", "FOPEN_MAX", "L_tmpnam", "TMP_MAX", "_IOFBF", "IOLBF",
+      "_IONBF", "SEEK_CUR", "SEEK_END", "SEEK_SET"
     ]
 select mi, "Use of <cstdio> macro '" + mi.getMacroName() + "'."
@@ -22,5 +22,5 @@ from TypeMention tm, UserType ut
 where
   not isExcluded(tm, BannedLibrariesPackage::cstdioTypesUsedQuery()) and
   ut = tm.getMentionedType() and
-  ut.hasGlobalOrStdName(["FILE", "fpos_t", "size_t"])
+  ut.hasGlobalOrStdName(["FILE", "fpos_t"])
 select tm, "Use of <cstdio> type '" + ut.getQualifiedName() + "'."
@@ -7,4 +7,3 @@
 | test.cpp:30:29:30:37 | FOPEN_MAX | Use of <cstdio> macro 'FOPEN_MAX'. |
 | test.cpp:41:14:41:16 | EOF | Use of <cstdio> macro 'EOF'. |
 | test.cpp:50:24:50:31 | SEEK_SET | Use of <cstdio> macro 'SEEK_SET'. |
-| test.cpp:60:10:60:13 | NULL | Use of <cstdio> macro 'NULL'. |
@@ -1,7 +1,4 @@
 | test.cpp:4:8:4:11 | type mention | Use of <cstdio> type 'std::FILE'. |
 | test.cpp:6:8:6:13 | type mention | Use of <cstdio> type 'std::fpos_t'. |
-| test.cpp:20:18:20:23 | type mention | Use of <cstdio> type 'size_t'. |
-| test.cpp:21:18:21:23 | type mention | Use of <cstdio> type 'size_t'. |
 | test.cpp:34:3:34:6 | type mention | Use of <cstdio> type 'FILE'. |
 | test.cpp:36:3:36:8 | type mention | Use of <cstdio> type 'fpos_t'. |
-| test.cpp:50:14:50:19 | type mention | Use of <cstdio> type 'size_t'. |
@@ -57,5 +57,5 @@ void *test_cstdio_is_used() {
   printf("foo");     // NON_COMPLIANT
   puts("all done!"); // NON_COMPLIANT
 
-  return NULL; // NON_COMPLIANT
+  return NULL; // COMPLIANT - NULL is not uniquely defined by cstdio
 }
Original file line number	Diff line number	Diff line change
`@@ -57,5 +57,5 @@ void *test_cstdio_is_used() {`
`57`	`57`	`printf("foo"); // NON_COMPLIANT`
`58`	`58`	`puts("all done!"); // NON_COMPLIANT`
`59`	`59`
`60`		`- return NULL; // NON_COMPLIANT`
	`60`	`+ return NULL; // COMPLIANT - NULL is not uniquely defined by cstdio`
`61`	`61`	`}`