libc/AOR_v20.02/string/test/strrchr.c

   1 /*
   2  * strrchr test.
   3  *
   4  * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   5  * See https://llvm.org/LICENSE.txt for license information.
   6  * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   7  */
   8
   9 #include <stdint.h>
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <limits.h>
  14 #include "stringlib.h"
  15
  16 static const struct fun
  17 {
  18         const char *name;
  19         char *(*fun)(const char *s, int c);
  20 } funtab[] = {
  21 #define F(x) {#x, x},
  22 F(strrchr)
  23 #if __aarch64__
  24 F(__strrchr_aarch64)
  25 # if __ARM_FEATURE_SVE
  26 F(__strrchr_aarch64_sve)
  27 # endif
  28 #endif
  29 #undef F
  30         {0, 0}
  31 };
  32
  33 static int test_status;
  34 #define ERR(...) (test_status=1, printf(__VA_ARGS__))
  35
  36 #define A 32
  37 #define SP 512
  38 #define LEN 250000
  39 static char sbuf[LEN+2*A];
  40
  41 static void *alignup(void *p)
  42 {
  43         return (void*)(((uintptr_t)p + A-1) & -A);
  44 }
  45
  46 static void test(const struct fun *fun, int align, int seekpos, int len)
  47 {
  48         char *src = alignup(sbuf);
  49         char *s = src + align;
  50         char *f = seekpos != -1 ? s + seekpos : 0;
  51         int seekchar = 0x1;
  52         void *p;
  53
  54         if (len > LEN || seekpos >= len - 1 || align >= A)
  55                 abort();
  56         if (seekchar >= 'a' && seekchar <= 'a' + 23)
  57                 abort();
  58
  59         for (int i = 0; i < len + A; i++)
  60                 src[i] = '?';
  61         for (int i = 0; i < len - 2; i++)
  62                 s[i] = 'a' + i%23;
  63         if (seekpos != -1)
  64                 s[seekpos/2] = s[seekpos] = seekchar;
  65         s[len - 1] = '\0';
  66
  67         p = fun->fun(s, seekchar);
  68
  69         if (p != f) {
  70                 ERR("%s(%p,0x%02x,%d) returned %p\n", fun->name, s, seekchar, len, p);
  71                 ERR("expected: %p\n", f);
  72                 abort();
  73         }
  74 }
  75
  76 int main()
  77 {
  78         int r = 0;
  79         for (int i=0; funtab[i].name; i++) {
  80                 test_status = 0;
  81                 for (int a = 0; a < A; a++) {
  82                         int n;
  83                         for (n = 1; n < 100; n++) {
  84                                 for (int sp = 0; sp < n - 1; sp++)
  85                                         test(funtab+i, a, sp, n);
  86                                 test(funtab+i, a, -1, n);
  87                         }
  88                         for (; n < LEN; n *= 2) {
  89                                 test(funtab+i, a, -1, n);
  90                                 test(funtab+i, a, n / 2, n);
  91                         }
  92                 }
  93                 printf("%s %s\n", test_status ? "FAIL" : "PASS", funtab[i].name);
  94                 if (test_status)
  95                         r = -1;
  96         }
  97         return r;
  98 }