view gcc/testsuite/gcc.dg/Wstringop-overflow-5.c @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 84e7813d76e9
children
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/* PR tree-optimization/85259 - Missing -Wstringop-overflow= since r256683
   { dg-do compile }
   { dg-options "-O2 -Wstringop-overflow" } */

extern char* strcpy (char*, const char*);
extern char* strcat (char*, const char*);

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=]" } */
}