668f56d003
https://github.com/llvm/llvm-project/blob/main/clang/lib/StaticAnalyzer/Checkers/CStringChecker.cpp#L675-L678 mistakenly assumes that target expressions are of pointer type. `CheckOverlap` has multiple call sites, most of which do not verify this assumption. Therefore, the simplest solution is to verify it just before that point.
24 lines
538 B
C
24 lines
538 B
C
// RUN: %clang_analyze_cc1 -verify %s -Wno-incompatible-library-redeclaration \
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// RUN: -analyzer-checker=alpha.unix.cstring.BufferOverlap
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// expected-no-diagnostics
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typedef typeof(sizeof(int)) size_t;
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void memcpy(int dst, int src, size_t size);
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void test_memcpy_proxy() {
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memcpy(42, 42, 42); // no-crash
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}
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void strcpy(int dst, char *src);
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void test_strcpy_proxy() {
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strcpy(42, (char *)42); // no-crash
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}
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void strxfrm(int dst, char *src, size_t size);
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void test_strxfrm_proxy() {
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strxfrm(42, (char *)42, 42); // no-crash
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}
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