rand_s.c File Reference

#include <apitest.h>
#include <stdio.h>

Include dependency graph for rand_s.c:

Go to the source code of this file.

Typedefs
typedef int __cdecl	rand_s_t(unsigned int *)

Functions
void	test_rand_s_performance (void)
	START_TEST (rand_s)

Variables
rand_s_t *	p_rand_s

Typedef Documentation

rand_s_t

typedef int __cdecl rand_s_t(unsigned int *)

Definition at line 15 of file rand_s.c.

Function Documentation

START_TEST()

START_TEST

(

rand_s

)

Definition at line 33 of file rand_s.c.

{
    unsigned int val;
    int ret;
 
#ifndef TEST_STATIC_CRT
    /* Dynamically load rand_s from mvcrt */
    HMODULE msvcrt = GetModuleHandleA("msvcrt");
    p_rand_s = (rand_s_t*)GetProcAddress(msvcrt, "rand_s");
    if (!p_rand_s)
    {
        win_skip("rand_s is not available\n");
        return;
    }
#else
    p_rand_s = rand_s;
#endif
 
    /* Test performance */
    test_rand_s_performance();
 
    /* Test with NULL pointer */
    ret = p_rand_s(NULL);
    ok(ret == EINVAL, "Expected EINVAL, got %d\n", ret);
 
    /* Test with valid pointer */
    ret = p_rand_s(&val);
    ok(ret == 0, "Expected 0, got %d\n", ret);
}

test_rand_s_performance()

void test_rand_s_performance

(

void

)

Definition at line 18 of file rand_s.c.

{
    unsigned long long start, end;
    unsigned int val;
    int i;
 
    start = __rdtsc();
    for (i = 0; i < 10000; i++)
    {
        p_rand_s(&val);
    }
    end = __rdtsc();
    printf("rand_s took %llu cycles\n", end - start);
}

Referenced by START_TEST().

Variable Documentation

p_rand_s

rand_s_t* p_rand_s

Definition at line 16 of file rand_s.c.

Referenced by START_TEST(), and test_rand_s_performance().