Viewing file:  Wstringop-overflow-6.c (1.56 KB) -rw-r--r--
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/* PR tree-optimization/85259 - Missing -Wstringop-overflow= since r256683
{ dg-do compile }
{ dg-options "-O2 -Wstringop-overflow -ftrack-macro-expansion=0" } */
#define bos1(p) __builtin_object_size (p, 1)
#define strcat(d, s) __builtin___strcat_chk (d, s, bos1 (d))
#define strcpy(d, s) __builtin___strcpy_chk (d, s, bos1 (d))
char a1[1];
char a2[2];
char a3[3];
char a4[4];
char a5[5];
char a6[6];
char a7[7];
char a8[8];
/* Verify that at least one instance of -Wstringop-overflow is issued
for each pair of strcpy/strcat calls. */
void test_strcpy_strcat_1 (void)
{
strcpy (a1, "1"), strcat (a1, "2"); /* { dg-warning "\\\[-Wstringop-overflow=]" } */
}
void test_strcpy_strcat_2 (void)
{
strcpy (a2, "12"), strcat (a2, "3"); /* { dg-warning "\\\[-Wstringop-overflow=]" } */
}
void test_strcpy_strcat_3 (void)
{
strcpy (a3, "123"), strcat (a3, "4"); /* { dg-warning "\\\[-Wstringop-overflow=]" } */
}
void test_strcpy_strcat_4 (void)
{
strcpy (a4, "1234"), strcat (a4, "5"); /* { dg-warning "\\\[-Wstringop-overflow=]" } */
}
void test_strcpy_strcat_5 (void)
{
strcpy (a5, "12345"), strcat (a5, "6"); /* { dg-warning "\\\[-Wstringop-overflow=]" } */
}
void test_strcpy_strcat_6 (void)
{
strcpy (a6, "123456"), strcat (a6, "7"); /* { dg-warning "\\\[-Wstringop-overflow=]" } */
}
void test_strcpy_strcat_7 (void)
{
strcpy (a7, "1234567"), strcat (a7, "8"); /* { dg-warning "\\\[-Wstringop-overflow=]" } */
}
void test_strcpy_strcat_8 (void)
{
strcpy (a8, "12345678"), strcat (a8, "9"); /* { dg-warning "\\\[-Wstringop-overflow=]" } */
}
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