89 lines
1.9 KiB
C++
89 lines
1.9 KiB
C++
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix -verify %s
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// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix -analyzer-output=plist-multi-file %s -o %t.plist
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// RUN: %normalize_plist <%t.plist | diff -ub %S/Inputs/expected-plists/plist-macros.cpp.plist -
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typedef __typeof(sizeof(int)) size_t;
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void *malloc(size_t);
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#define mallocmemory int *x = (int*)malloc(12);
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void noteOnMacro(int y) {
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y++;
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y--;
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mallocmemory
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y++;
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y++;
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delete x; // expected-warning {{Memory allocated by malloc() should be deallocated by free(), not 'delete'}}
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}
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void macroIsFirstInFunction(int y) {
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mallocmemory
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y++; // expected-warning {{Potential leak of memory pointed to by 'x'}}
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}
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#define checkmacro p==0
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void macroInExpressionAux(bool b);
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int macroInExpression(int *p, int y) {;
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y++;
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macroInExpressionAux(checkmacro);
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return *p; // expected-warning {{Dereference of null pointer}}
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}
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#define noPathNoteMacro y+y
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int macroInExpressionNoNote(int *p, int y) {;
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y++;
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if (5 + noPathNoteMacro)
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if (p)
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;
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return *p; // expected-warning {{Dereference of null pointer}}
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}
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#define macroWithArg(mp) mp==0
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int macroWithArgInExpression(int *p, int y) {;
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y++;
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if (macroWithArg(p))
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;
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return *p; // expected-warning {{Dereference of null pointer}}
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}
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#define multiNoteMacroWithError \
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if (p) \
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;\
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*p = 5;
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int useMultiNoteMacroWithError(int *p, int y) {;
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y++;
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multiNoteMacroWithError // expected-warning {{Dereference of null pointer}}
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return *p;
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}
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#define multiNoteMacro \
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if (p) \
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;\
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if (y) \
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;
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int useMultiNote(int *p, int y) {;
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y++;
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if (p) {}
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multiNoteMacro
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return *p; // expected-warning {{Dereference of null pointer}}
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}
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#define CALL_FN(a) null_deref(a)
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void null_deref(int *a) {
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if (a)
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return;
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*a = 1; // expected-warning {{Dereference of null pointer}}
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}
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void test1() {
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CALL_FN(0);
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}
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void test2(int *p) {
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CALL_FN(p);
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}
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