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#include <string.h>
#ifdef __cplusplus
#define CONST_CAST(type) const_cast<type>
#else
#define CONST_CAST(type)
#endif
/* PR analyzer/95007. */
void test_1 (void)
{
char *s = CONST_CAST(char *)("foo");
s[0] = 'g'; /* { dg-warning "write to string literal" } */
}
/* PR c/83347. */
void test_2 (void)
{
// Technically irrelevant for C++ as fpermissive will warn about invalid conversion.
memcpy (CONST_CAST(char *)("abc"), "def", 3); /* { dg-warning "write to string literal" } */
}
/* PR c/83347. */
static char * __attribute__((noinline))
called_by_test_3 (void)
{
return (char *)"foo";
}
void test_3 (void)
{
char *s = called_by_test_3 ();
s[1] = 'a'; /* { dg-warning "write to string literal" } */
}
static char * __attribute__((noinline))
called_by_test_4 (int flag)
{
if (flag)
return (char *)"foo";
else
return (char *)"bar";
}
void test_4 (void)
{
char *s = called_by_test_4 (0);
s[1] = 'z'; /* { dg-warning "write to string literal" } */
}
static char * __attribute__((noinline))
called_by_test_5 (int flag)
{
if (flag)
return (char *)"foo";
else
return (char *)"bar";
}
void test_5 (int flag)
{
char *s = called_by_test_5 (flag);
s[1] = 'z'; /* We miss this one, unless we disable state merging. */
}
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