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1ea584377e
without prototypes. This patch converts the function signatures to have a prototype for the situations where the test is not specific to K&R C declarations. e.g., void func(); becomes void func(void); This is the ninth batch of tests being updated (there are a significant number of other tests left to be updated).
59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
// RUN: %clang_analyze_cc1 -analyzer-checker=core -verify -std=c99 -Dbool=_Bool -Wno-bool-conversion %s
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// RUN: %clang_analyze_cc1 -analyzer-checker=core -verify -x c++ -Wno-bool-conversion %s
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typedef __INTPTR_TYPE__ intptr_t;
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char const *p;
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void f0(void) {
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char const str[] = "This will change";
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p = str;
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} // expected-warning{{Address of stack memory associated with local variable 'str' is still referred to by the global variable 'p' upon returning to the caller. This will be a dangling reference}}
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void f1(void) {
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char const str[] = "This will change";
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p = str;
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p = 0; // no-warning
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}
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void f2(void) {
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p = (const char *) __builtin_alloca(12);
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} // expected-warning{{Address of stack memory allocated by call to alloca() on line 19 is still referred to by the global variable 'p' upon returning to the caller. This will be a dangling reference}}
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// PR 7383 - previously the stack address checker would crash on this example
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// because it would attempt to do a direct load from 'pr7383_list'.
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static int pr7383(__const char *__)
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{
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return 0;
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}
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extern __const char *__const pr7383_list[];
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// Test that we catch multiple returns via globals when analyzing a function.
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void test_multi_return(void) {
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static int *a, *b;
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int x;
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a = &x;
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b = &x;
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} // expected-warning{{Address of stack memory associated with local variable 'x' is still referred to by the static variable 'a' upon returning}} expected-warning{{Address of stack memory associated with local variable 'x' is still referred to by the static variable 'b' upon returning}}
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intptr_t returnAsNonLoc(void) {
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int x;
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return (intptr_t)&x; // expected-warning{{Address of stack memory associated with local variable 'x' returned to caller}} expected-warning{{address of stack memory associated with local variable 'x' returned}}
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}
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bool returnAsBool(void) {
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int x;
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return &x; // no-warning
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}
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void assignAsNonLoc(void) {
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extern intptr_t ip;
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int x;
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ip = (intptr_t)&x;
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} // expected-warning{{Address of stack memory associated with local variable 'x' is still referred to by the global variable 'ip' upon returning}}
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void assignAsBool(void) {
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extern bool b;
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int x;
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b = &x;
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} // no-warning
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