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C++: Expose a type resolution issue.

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This commit is contained in:
Geoffrey White
2026-03-06 10:13:11 +00:00
parent d23a3f821e
commit 7f6fd34d46
3 changed files with 12 additions and 6 deletions
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6
cpp/ql/test/query-tests/Likely Bugs/Format/WrongTypeFormatArguments/Buildless/WrongTypeFormatArguments.expected
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@@ -1,4 +1,10 @@
| include_twice.h:8:19:8:19 | s | This format specifier for type 'size_t' does not match the argument type '..(*)(..)'. |
| include_twice.h:9:19:9:19 | s | This format specifier for type 'size_t' does not match the argument type '..(*)(..)'. |
| include_twice.h:10:18:10:18 | s | This format specifier for type 'int' does not match the argument type '..(*)(..)'. |
| include_twice.h:10:18:10:18 | s | This format specifier for type 'int' does not match the argument type 'unsigned long'. |
| include_twice.h:11:19:11:19 | s | This format specifier for type 'long' does not match the argument type '..(*)(..)'. |
| include_twice.h:12:20:12:20 | s | This format specifier for type 'long long' does not match the argument type '..(*)(..)'. |
| include_twice.h:13:18:13:18 | s | This format specifier for type 'unsigned int' does not match the argument type '..(*)(..)'. |
| include_twice.h:13:18:13:18 | s | This format specifier for type 'unsigned int' does not match the argument type 'unsigned long'. |
| include_twice.h:21:18:21:39 | ... - ... | This format specifier for type 'int' does not match the argument type 'long'. |
| include_twice.h:21:18:21:39 | ... - ... | This format specifier for type 'int' does not match the argument type 'long'. |

8
cpp/ql/test/query-tests/Likely Bugs/Format/WrongTypeFormatArguments/Buildless/include_twice.h
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@@ -5,11 +5,11 @@ void test_size_t() {
printf("%zd", s); // GOOD
printf("%zi", s); // GOOD
printf("%zu", s); // GOOD
printf("%zx", s); // GOOD
printf("%zu", s); // GOOD [FALSE POSITIVE]
printf("%zx", s); // GOOD [FALSE POSITIVE]
printf("%d", s); // BAD
printf("%ld", s); // BAD [NOT DETECTED]
printf("%lld", s); // BAD [NOT DETECTED]
printf("%ld", s); // BAD
printf("%lld", s); // BAD
printf("%u", s); // BAD
char buffer[1024];

4
cpp/ql/test/query-tests/Likely Bugs/Format/WrongTypeFormatArguments/Buildless/second.cpp
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@@ -2,7 +2,7 @@
int printf(const char * format, ...);
// defines type `myFunctionPointerType`
typedef int (*myFunctionPointerType) ();
// defines type `myFunctionPointerType`, referencing `size_t`
typedef size_t (*myFunctionPointerType) ();
#include "include_twice.h"