LXR linux/tools/perf/tests/unit_number_

   1#include <inttypes.h>
   2#include <linux/compiler.h>
   3#include <linux/types.h>
   4#include "tests.h"
   5#include "units.h"
   6#include "debug.h"
   7
   8int test__unit_number__scnprint(int subtest __maybe_unused)
   9{
  10        struct {
  11                u64              n;
  12                const char      *str;
  13        } test[] = {
  14                { 1,                    "1B"    },
  15                { 10*1024,              "10K"   },
  16                { 20*1024*1024,         "20M"   },
  17                { 30*1024*1024*1024ULL, "30G"   },
  18                { 0,                    "0B"    },
  19                { 0,                    NULL    },
  20        };
  21        unsigned i = 0;
  22
  23        while (test[i].str) {
  24                char buf[100];
  25
  26                unit_number__scnprintf(buf, sizeof(buf), test[i].n);
  27
  28                pr_debug("n %" PRIu64 ", str '%s', buf '%s'\n",
  29                         test[i].n, test[i].str, buf);
  30
  31                if (strcmp(test[i].str, buf))
  32                        return TEST_FAIL;
  33
  34                i++;
  35        }
  36
  37        return TEST_OK;
  38}
  39