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111
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1 /* Copyright (C) 2004 Free Software Foundation.
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2
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3 Test strlen on const variables initialized to string literals.
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4
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5 Written by Jakub Jelinek, 9/14/2004. */
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6
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7 extern void abort (void);
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8 extern __SIZE_TYPE__ strlen (const char *);
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9 extern char *strcpy (char *, const char *);
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10 static const char bar[] = "Hello, World!";
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11 static const char baz[] = "hello, world?";
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12 static const char larger[20] = "short string";
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13 extern int inside_main;
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14
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15 int l1 = 1;
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16 int x = 6;
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17
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18 void
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19 main_test(void)
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20 {
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131
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21 inside_main = 1;
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22
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111
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23 #ifdef __OPTIMIZE__
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24 const char *foo;
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25 int i;
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26 #endif
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27
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28 if (strlen (bar) != 13)
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29 abort ();
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30
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31 if (strlen (bar + 3) != 10)
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32 abort ();
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33
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34 if (strlen (&bar[6]) != 7)
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35 abort ();
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36
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37 if (strlen (bar + (x++ & 7)) != 7)
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38 abort ();
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39 if (x != 7)
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40 abort ();
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41
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42 #ifdef __OPTIMIZE__
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43 foo = bar;
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44 for (i = 0; i < 4; ++i)
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45 {
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46 if (i == l1 - 1)
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47 foo = "HELLO, WORLD!";
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48 else if (i == l1)
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49 foo = bar;
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50 else if (i == l1 + 1)
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51 foo = "hello, world!";
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52 else
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53 foo = baz;
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54 }
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55 if (strlen (foo) != 13)
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56 abort ();
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57 #endif
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58
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59 if (strlen (larger) != 12)
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60 abort ();
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61 if (strlen (&larger[10]) != 2)
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62 abort ();
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63
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64 inside_main = 0;
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131
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65 /* The following call may or may not be folded depending on
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66 the optimization level, and when it isn't folded (such
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67 as may be the case with -Og) it may or may not result in
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68 a library call, depending on whether or not it's expanded
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69 inline (e.g., powerpc64 makes a call while x86_64 expands
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70 it inline). */
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111
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71 if (strlen (larger + (x++ & 7)) != 5)
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72 abort ();
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73 if (x != 8)
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74 abort ();
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75 inside_main = 1;
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76 }
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