Viewing file:  varargs-4.c (6.19 KB) -rw-r--r--
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#include "harness.h"
#include <stdarg.h>
#include <stddef.h>
#include <string.h>
typedef struct n_a
{
signed char m1;
short m2;
int m3;
double m4;
vector float m5;
}
n_a;
static n_a gn_a;
static int
lay(char *p, int start, int end, int n)
{
int b;
unsigned char ch;
unsigned int mask;
start *= 8;
end *= 8;
n *= 8;
for (b = 0; b + 8 <= start; b += 8)
{
ch = *p++;
if (ch != 0xff)
for (mask = 0x80; mask; b++, mask >>= 1)
if ((ch & mask) != mask)
return b;
}
if (b < start)
{
ch = *p++;
for (mask = 0x80; b < start; b++, mask >>= 1)
if ((ch & mask) != mask)
return b;
for (; mask && b < end; b++, mask >>= 1)
if ((ch & mask) != 0)
return b;
}
for (; b + 8 <= end; b += 8)
{
ch = *p++;
if (ch != 0)
for (mask = 0x80; mask; b++, mask >>= 1)
if ((ch & mask) != 0)
return b;
}
if (b < end)
{
ch = *p++;
for (mask = 0x80; b < end; b++, mask >>= 1)
if ((ch & mask) != 0)
return b;
for (; mask && b < n; b++, mask >>= 1)
if ((ch & mask) != mask)
return b;
}
for (; b + 8 <= n; b += 8)
{
ch = *p++;
if (ch != 0xff)
for (mask = 0x80; mask; b++, mask >>= 1)
if ((ch & mask) != mask)
return b;
}
return n;
}
static void
initn_a(signed char p1, short p2, int p3, double p4, vector float p5)
{
n_a i;
i.m1 = p1;
i.m2 = p2;
i.m3 = p3;
i.m4 = p4;
i.m5 = p5;
check(i.m1 == 77, "i.m1");
check(i.m2 == 1924, "i.m2");
check(i.m3 == -1471601920, "i.m3");
check(vec_all_eq(i.m5, ((vector float){-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08})),
"i.m5");
check(sizeof(n_a) == 32, "sizeof(n_a)");
check(offsetof(n_a, m1) == 0, "offsetof(m1)");
check(offsetof(n_a, m2) == 2, "offsetof(m2)");
check(offsetof(n_a, m3) == 4, "offsetof(m3)");
check(offsetof(n_a, m4) == 8, "offsetof(m4)");
check(offsetof(n_a, m5) == 16, "offsetof(m5)");
check(sizeof(i.m1) == 1, "sizeof(m1)");
check(sizeof(i.m2) == 2, "sizeof(m2)");
check(sizeof(i.m3) == 4, "sizeof(m3)");
check(sizeof(i.m4) == 8, "sizeof(m4)");
check(sizeof(i.m5) == 16, "sizeof(m5)");
#define lay_check(field) do { \
memset((char *)&i, 0xFF, sizeof(i)); \
lay_reset(field); \
check(lay((char *)&i, \
offsetof(n_a, field), \
offsetof(n_a, field) + sizeof(i.field), \
sizeof(i)) == sizeof(i)*8, \
"lay(" #field ")"); \
} while (0)
#define lay_reset(field) i.field = 0
lay_check(m1);
lay_check(m2);
lay_check(m3);
lay_check(m4);
#undef lay_reset
#define lay_reset(field) i.field = ((vector float){0,0,0,0})
lay_check(m5);
#undef lay_check
#undef lay_reset
}
n_a
valuen_a(void)
{
return gn_a;
}
n_a *
addrn_a(void)
{
return &gn_a;
}
static void
eqn_a(n_a * a)
{
check(a->m1 == 77, "a->m1");
check(a->m2 == 1924, "a->m2");
check(a->m3 == -1471601920, "a->m3");
check(vec_all_eq(a->m5, ((vector float){-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08})),
"a->m5");
}
static void
getsn_a(n_a * a)
{
a->m1 = 77;
a->m2 = 1924;
a->m3 = -1471601920;
a->m4 = 3.65e+18;
a->m5 = ((vector float){-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08});
}
static void
varlistn_a(signed char p1, va_list ap)
{
n_a q;
q.m1 = p1;
q.m2 = va_arg(ap, int);
q.m3 = va_arg(ap, int);
q.m4 = va_arg(ap, double);
q.m5 = va_arg(ap, vector float);
check(q.m1 == 77, "q.m1");
check(q.m2 == 1924, "q.m2");
check(q.m3 == -1471601920, "q.m3");
check(vec_all_eq(q.m5, ((vector float){-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08})),
"q.m5");
}
static void
varargsn_a(signed char p1, ...)
{
n_a q, r;
va_list ap;
va_start(ap, p1);
q.m1 = p1;
q.m2 = va_arg(ap, int);
q.m3 = va_arg(ap, int);
q.m4 = va_arg(ap, double);
q.m5 = va_arg(ap, vector float);
va_end(ap);
check(q.m1 == 77, "q.m1");
check(q.m2 == 1924, "q.m2");
check(q.m3 == -1471601920, "q.m3");
check(vec_all_eq(q.m5, ((vector float){-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08})),
"q.m5");
va_start(ap, p1);
r.m1 = p1;
r.m2 = va_arg(ap, int);
r.m3 = va_arg(ap, int);
r.m4 = va_arg(ap, double);
r.m5 = va_arg(ap, vector float);
va_end(ap);
check(r.m1 == 77, "r.m1");
check(r.m2 == 1924, "r.m2");
check(r.m3 == -1471601920, "r.m3");
check(vec_all_eq(r.m5, ((vector float){-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08})),
"r.m5");
va_start(ap, p1);
varlistn_a(p1, ap);
va_end(ap);
}
static void
test()
{
static struct
{
char a;
n_a b;
}
s;
n_a v[3], a, *p;
static n_a i = { 77, 1924, -1471601920, 3.65e+18, {-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08} };
memset((char *)&(v), -1, sizeof(v));
v[1] = s.b;
check(lay((char *)&v, sizeof(n_a), sizeof(n_a)*2, sizeof(n_a)*3) == sizeof(n_a)*3*8,
"structure assignment");
check(i.m1 == 77, "i.m1");
check(i.m2 == 1924, "i.m2");
check(i.m3 == -1471601920, "i.m3");
check(vec_all_eq(i.m5, ((vector float){-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08})),
"i.m5");
initn_a(77, 1924, -1471601920, 3.65e+18, ((vector float){-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08}));
varargsn_a(77, 1924, -1471601920, 3.65e+18, ((vector float){-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08}));
gn_a.m1 = 77;
gn_a.m2 = 1924;
gn_a.m3 = -1471601920;
gn_a.m4 = 3.65e+18;
gn_a.m5 = ((vector float){-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08});
a = valuen_a();
check(a.m1 == 77, "a.m1");
check(a.m2 == 1924, "a.m2");
check(a.m3 == -1471601920, "a.m3");
check(vec_all_eq(a.m5, ((vector float){-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08})),
"a.m5");
p = addrn_a();
check(p->m1 == 77, "p->m1");
check(p->m2 == 1924, "p->m2");
check(p->m3 == -1471601920, "p->m3");
check(vec_all_eq(p->m5, ((vector float){-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08})),
"p->m5");
eqn_a(&a);
check(gn_a.m1 == 77, "gn_a.m1");
check(gn_a.m2 == 1924, "gn_a.m2");
check(gn_a.m3 == -1471601920, "gn_a.m3");
check(vec_all_eq(gn_a.m5, ((vector float){-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08})),
"gn_a.m5");
getsn_a(&v[0]);
v[2].m1 = v[0].m1;
v[2].m2 = v[0].m2;
v[2].m3 = v[0].m3;
v[2].m4 = v[0].m4;
v[2].m5 = v[0].m5;
check(v[2].m1 == 77, "v[2].m1");
check(v[2].m2 == 1924, "v[2].m2");
check(v[2].m3 == -1471601920, "v[2].m3");
check(vec_all_eq(v[2].m5, ((vector float){-1.38e+09, 5.96e+08, 6.88e+08, -3.2e+08})),
"v[2].m5");
}
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