| /* Copyright (C) 2000, 2001 Free Software Foundation. |
| |
| Ensure all expected transformations of builtin strncmp occur and |
| perform correctly. |
| |
| Written by Kaveh R. Ghazi, 11/26/2000. */ |
| |
| extern void abort (void); |
| typedef __SIZE_TYPE__ size_t; |
| extern int strncmp (const char *, const char *, size_t); |
| |
| int main () |
| { |
| const char *const s1 = "hello world"; |
| const char *s2, *s3; |
| int n = 6, x; |
| |
| if (strncmp (s1, "hello world", 12) != 0) |
| abort(); |
| if (strncmp ("hello world", s1, 12) != 0) |
| abort(); |
| if (strncmp ("hello", "hello", 6) != 0) |
| abort(); |
| if (strncmp ("hello", "hello", 2) != 0) |
| abort(); |
| if (strncmp ("hello", "hello", 100) != 0) |
| abort(); |
| if (strncmp (s1+10, "d", 100) != 0) |
| abort(); |
| if (strncmp (10+s1, "d", 100) != 0) |
| abort(); |
| if (strncmp ("d", s1+10, 1) != 0) |
| abort(); |
| if (strncmp ("d", 10+s1, 1) != 0) |
| abort(); |
| if (strncmp ("hello", "aaaaa", 100) <= 0) |
| abort(); |
| if (strncmp ("aaaaa", "hello", 100) >= 0) |
| abort(); |
| if (strncmp ("hello", "aaaaa", 1) <= 0) |
| abort(); |
| if (strncmp ("aaaaa", "hello", 1) >= 0) |
| abort(); |
| |
| s2 = s1; s3 = s1+4; |
| if (strncmp (++s2, ++s3, 0) != 0 || s2 != s1+1 || s3 != s1+5) |
| abort(); |
| s2 = s1; |
| if (strncmp (++s2, "", 1) <= 0 || s2 != s1+1) |
| abort(); |
| if (strncmp ("", ++s2, 1) >= 0 || s2 != s1+2) |
| abort(); |
| if (strncmp (++s2, "", 100) <= 0 || s2 != s1+3) |
| abort(); |
| if (strncmp ("", ++s2, 100) >= 0 || s2 != s1+4) |
| abort(); |
| if (strncmp (++s2+6, "", 100) != 0 || s2 != s1+5) |
| abort(); |
| if (strncmp ("", ++s2+5, 100) != 0 || s2 != s1+6) |
| abort(); |
| if (strncmp ("ozz", ++s2, 1) != 0 || s2 != s1+7) |
| abort(); |
| if (strncmp (++s2, "rzz", 1) != 0 || s2 != s1+8) |
| abort(); |
| s2 = s1; s3 = s1+4; |
| if (strncmp (++s2, ++s3+2, 1) >= 0 || s2 != s1+1 || s3 != s1+5) |
| abort(); |
| #if defined(__i386__) || defined (__pj__) || defined (__i370__) |
| /* These tests work on platforms which support cmpstrsi. */ |
| s2 = s1; |
| if (strncmp (++s2, "ello", 3) != 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp ("ello", ++s2, 3) != 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp (++s2, "ello", 4) != 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp ("ello", ++s2, 4) != 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp (++s2, "ello", 5) <= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp ("ello", ++s2, 5) >= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp (++s2, "ello", 6) <= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp ("ello", ++s2, 6) >= 0 || s2 != s1+1) |
| abort(); |
| |
| s2 = s1; |
| if (strncmp (++s2, "zllo", 3) >= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp ("zllo", ++s2, 3) <= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp (++s2, "zllo", 4) >= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp ("zllo", ++s2, 4) <= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp (++s2, "zllo", 5) >= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp ("zllo", ++s2, 5) <= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp (++s2, "zllo", 6) >= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp ("zllo", ++s2, 6) <= 0 || s2 != s1+1) |
| abort(); |
| |
| s2 = s1; |
| if (strncmp (++s2, "allo", 3) <= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp ("allo", ++s2, 3) >= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp (++s2, "allo", 4) <= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp ("allo", ++s2, 4) >= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp (++s2, "allo", 5) <= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp ("allo", ++s2, 5) >= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp (++s2, "allo", 6) <= 0 || s2 != s1+1) |
| abort(); |
| s2 = s1; |
| if (strncmp ("allo", ++s2, 6) >= 0 || s2 != s1+1) |
| abort(); |
| |
| s2 = s1; n = 2; x = 1; |
| if (strncmp (++s2, s1+(x&3), ++n) != 0 || s2 != s1+1 || n != 3) |
| abort(); |
| s2 = s1; n = 2; x = 1; |
| if (strncmp (s1+(x&3), ++s2, ++n) != 0 || s2 != s1+1 || n != 3) |
| abort(); |
| s2 = s1; n = 3; x = 1; |
| if (strncmp (++s2, s1+(x&3), ++n) != 0 || s2 != s1+1 || n != 4) |
| abort(); |
| s2 = s1; n = 3; x = 1; |
| if (strncmp (s1+(x&3), ++s2, ++n) != 0 || s2 != s1+1 || n != 4) |
| abort(); |
| s2 = s1; n = 4; x = 1; |
| if (strncmp (++s2, s1+(x&3), ++n) != 0 || s2 != s1+1 || n != 5) |
| abort(); |
| s2 = s1; n = 4; x = 1; |
| if (strncmp (s1+(x&3), ++s2, ++n) != 0 || s2 != s1+1 || n != 5) |
| abort(); |
| s2 = s1; n = 5; x = 1; |
| if (strncmp (++s2, s1+(x&3), ++n) != 0 || s2 != s1+1 || n != 6) |
| abort(); |
| s2 = s1; n = 5; x = 1; |
| if (strncmp (s1+(x&3), ++s2, ++n) != 0 || s2 != s1+1 || n != 6) |
| abort(); |
| |
| s2 = s1; n = 2; |
| if (strncmp (++s2, "zllo", ++n) >= 0 || s2 != s1+1 || n != 3) |
| abort(); |
| s2 = s1; n = 2; x = 1; |
| if (strncmp ("zllo", ++s2, ++n) <= 0 || s2 != s1+1 || n != 3) |
| abort(); |
| s2 = s1; n = 3; x = 1; |
| if (strncmp (++s2, "zllo", ++n) >= 0 || s2 != s1+1 || n != 4) |
| abort(); |
| s2 = s1; n = 3; x = 1; |
| if (strncmp ("zllo", ++s2, ++n) <= 0 || s2 != s1+1 || n != 4) |
| abort(); |
| s2 = s1; n = 4; x = 1; |
| if (strncmp (++s2, "zllo", ++n) >= 0 || s2 != s1+1 || n != 5) |
| abort(); |
| s2 = s1; n = 4; x = 1; |
| if (strncmp ("zllo", ++s2, ++n) <= 0 || s2 != s1+1 || n != 5) |
| abort(); |
| s2 = s1; n = 5; x = 1; |
| if (strncmp (++s2, "zllo", ++n) >= 0 || s2 != s1+1 || n != 6) |
| abort(); |
| s2 = s1; n = 5; x = 1; |
| if (strncmp ("zllo", ++s2, ++n) <= 0 || s2 != s1+1 || n != 6) |
| abort(); |
| |
| s2 = s1; n = 2; |
| if (strncmp (++s2, "allo", ++n) <= 0 || s2 != s1+1 || n != 3) |
| abort(); |
| s2 = s1; n = 2; x = 1; |
| if (strncmp ("allo", ++s2, ++n) >= 0 || s2 != s1+1 || n != 3) |
| abort(); |
| s2 = s1; n = 3; x = 1; |
| if (strncmp (++s2, "allo", ++n) <= 0 || s2 != s1+1 || n != 4) |
| abort(); |
| s2 = s1; n = 3; x = 1; |
| if (strncmp ("allo", ++s2, ++n) >= 0 || s2 != s1+1 || n != 4) |
| abort(); |
| s2 = s1; n = 4; x = 1; |
| if (strncmp (++s2, "allo", ++n) <= 0 || s2 != s1+1 || n != 5) |
| abort(); |
| s2 = s1; n = 4; x = 1; |
| if (strncmp ("allo", ++s2, ++n) >= 0 || s2 != s1+1 || n != 5) |
| abort(); |
| s2 = s1; n = 5; x = 1; |
| if (strncmp (++s2, "allo", ++n) <= 0 || s2 != s1+1 || n != 6) |
| abort(); |
| s2 = s1; n = 5; x = 1; |
| if (strncmp ("allo", ++s2, ++n) >= 0 || s2 != s1+1 || n != 6) |
| abort(); |
| |
| #endif |
| |
| /* Test at least one instance of the __builtin_ style. We do this |
| to ensure that it works and that the prototype is correct. */ |
| if (__builtin_strncmp ("hello", "a", 100) <= 0) |
| abort(); |
| |
| return 0; |
| } |
| |
| #ifdef __OPTIMIZE__ |
| /* When optimizing, all the above cases should be transformed into |
| something else. So any remaining calls to the original function |
| should abort. */ |
| static char * |
| strncmp(const char *s1, const char *s2, size_t n) |
| { |
| abort(); |
| } |
| #endif |