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C++: Add heuristic for GNU autoconf config files

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This commit is contained in:
Jeroen Ketema
2026-04-07 10:43:15 +02:00
parent fb8b5699f2
commit b19c648965
10 changed files with 47 additions and 0 deletions
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2
cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/ExprHasNoEffect.expected Normal file
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| conftest.c.c:4:3:4:8 | call to strlen | This expression has no effect (because $@ has no external side effects). | conftest.h:3:8:3:13 | strlen | strlen |
| conftest_abc.c:4:3:4:8 | call to strlen | This expression has no effect (because $@ has no external side effects). | conftest.h:3:8:3:13 | strlen | strlen |

1
cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/ExprHasNoEffect.qlref Normal file
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@@ -0,0 +1 @@
Likely Bugs/Likely Typos/ExprHasNoEffect.ql

6
cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/conftest.c Normal file
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#include "conftest.h"
int main2() {
strlen(""); // GOOD: the source file occurs in a `CMakeFiles/CMakeScratch/TryCompile-...` directory
return 0;
}

6
cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/conftest.c.c Normal file
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#include "conftest.h"
int main3() {
strlen(""); // GOOD: the source file occurs in a `CMakeFiles/CMakeScratch/TryCompile-...` directory
return 0;
}

6
cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/conftest.cpp Normal file
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@@ -0,0 +1,6 @@
#include "conftest.h"
int main4() {
strlen(""); // GOOD: the source file occurs in a `CMakeFiles/CMakeScratch/TryCompile-...` directory
return 0;
}

3
cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/conftest.h Normal file
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@@ -0,0 +1,3 @@
typedef long long size_t;
size_t strlen(const char *s);

6
cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/conftest123.c Normal file
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@@ -0,0 +1,6 @@
#include "conftest.h"
int main5() {
strlen(""); // GOOD: the source file occurs in a `CMakeFiles/CMakeScratch/TryCompile-...` directory
return 0;
}

6
cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/conftest_abc.c Normal file
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@@ -0,0 +1,6 @@
#include "conftest.h"
int main1() {
strlen(""); // GOOD: the source file occurs in a `CMakeFiles/CMakeScratch/TryCompile-...` directory
return 0;
}