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

   1 /*
   2  * strchrnul 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 #define _GNU_SOURCE
  10
  11 #include <stdint.h>
  12 #include <stdio.h>
  13 #include <stdlib.h>
  14 #include <string.h>
  15 #include <limits.h>
  16 #include "stringlib.h"
  17
  18 static const struct fun
  19 {
  20         const char *name;
  21         char *(*fun)(const char *s, int c);
  22 } funtab[] = {
  23 #define F(x) {#x, x},
  24 F(strchrnul)
  25 #if __aarch64__
  26 F(__strchrnul_aarch64)
  27 # if __ARM_FEATURE_SVE
  28 F(__strchrnul_aarch64_sve)
  29 # endif
  30 #endif
  31 #undef F
  32         {0, 0}
  33 };
  34
  35 static int test_status;
  36 #define ERR(...) (test_status=1, printf(__VA_ARGS__))
  37
  38 #define A 32
  39 #define SP 512
  40 #define LEN 250000
  41 static char sbuf[LEN+2*A];
  42
  43 static void *alignup(void *p)
  44 {
  45         return (void*)(((uintptr_t)p + A-1) & -A);
  46 }
  47
  48 static void test(const struct fun *fun, int align, int seekpos, int len)
  49 {
  50         char *src = alignup(sbuf);
  51         char *s = src + align;
  52         char *f = seekpos != -1 ? s + seekpos : s + len - 1;
  53         int seekchar = 0x1;
  54         void *p;
  55
  56         if (len > LEN || seekpos >= len - 1 || align >= A)
  57                 abort();
  58         if (seekchar >= 'a' && seekchar <= 'a' + 23)
  59                 abort();
  60
  61         for (int i = 0; i < len + A; i++)
  62                 src[i] = '?';
  63         for (int i = 0; i < len - 2; i++)
  64                 s[i] = 'a' + i%23;
  65         if (seekpos != -1)
  66                 s[seekpos] = seekchar;
  67         s[len - 1] = '\0';
  68
  69         p = fun->fun(s, seekchar);
  70
  71         if (p != f) {
  72                 ERR("%s(%p,0x%02x,%d) returned %p\n", fun->name, s, seekchar, len, p);
  73                 ERR("expected: %p\n", f);
  74                 abort();
  75         }
  76 }
  77
  78 int main()
  79 {
  80         int r = 0;
  81         for (int i=0; funtab[i].name; i++) {
  82                 test_status = 0;
  83                 for (int a = 0; a < A; a++) {
  84                         int n;
  85                         for (n = 1; n < 100; n++) {
  86                                 for (int sp = 0; sp < n - 1; sp++)
  87                                         test(funtab+i, a, sp, n);
  88                                 test(funtab+i, a, -1, n);
  89                         }
  90                         for (; n < LEN; n *= 2) {
  91                                 test(funtab+i, a, -1, n);
  92                                 test(funtab+i, a, n / 2, n);
  93                         }
  94                 }
  95                 printf("%s %s\n", test_status ? "FAIL" : "PASS", funtab[i].name);
  96                 if (test_status)
  97                         r = -1;
  98         }
  99         return r;
 100 }