ack/tests/plat/bugs/bug-157-i80-varargs_c.c

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#include <stdio.h>
#include <stdarg.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include "test.h"
static char buf[34];
char * __ultostr(unsigned long val, int radix)
{
register char *p;
register int c;
if( radix > 36 || radix < 2 ) return 0;
p = buf+sizeof(buf);
*--p = '\0';
do
{
c = val%radix;
val/=radix;
if( c > 9 ) *--p = 'a'-10+c; else *--p = '0'+c;
}
while(val);
return p;
}
char * __ltostr(long val, int radix)
{
char *p;
int flg = 0;
if( val < 0 ) { flg++; val= -val; }
p = __ultostr(val, radix);
if(p && flg) *--p = '-';
return p;
}
void demo(int lval, va_list ap)
{
char *ptmp = __ltostr((long) ((lval) ?
va_arg(ap, long) :
va_arg(ap, int)), 10);
ASSERT(strcmp(ptmp, "35") == 0);
}
void demo2(int lval, va_list ap)
{
long l;
char *ptmp;
l = (lval) ?va_arg(ap, long) :
va_arg(ap, int);
ptmp = __ltostr(l, 10);
ASSERT(strcmp(ptmp, "35") == 0);
}
void doit1a(char *x, ...)
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{
va_list ptr;
va_start(ptr, x);
demo(0,ptr);
va_end(ptr);
}
void doit1b(char *x, ...)
{
va_list ptr;
va_start(ptr, x);
demo(1,ptr);
va_end(ptr);
}
void doit2a(char *x, ...)
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{
va_list ptr;
va_start(ptr, x);
demo2(0,ptr);
va_end(ptr);
}
void doit2b(char *x, ...)
{
va_list ptr;
va_start(ptr, x);
demo2(1,ptr);
va_end(ptr);
}
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int main(int argc, char *argv[])
{
doit1a("", 35);
doit1b("", 35L);
doit2a("", 35);
doit2b("", 35L);
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finished();
return 0;
}