mirror of
https://github.com/cc65/cc65.git
synced 2024-08-20 09:29:12 +00:00
97 lines
1.6 KiB
C
97 lines
1.6 KiB
C
|
/*
|
||
|
!!DESCRIPTION!! return values, implicit type conversion on return
|
||
|
!!ORIGIN!! cc65 devel list
|
||
|
!!LICENCE!! Public Domain
|
||
|
*/
|
||
|
|
||
|
#include <stdio.h>
|
||
|
#include <stdlib.h>
|
||
|
|
||
|
unsigned char val_char=0x76;
|
||
|
unsigned int val_int=0x5678;
|
||
|
unsigned long val_long=0x12345678;
|
||
|
|
||
|
int test1_int_char(void)
|
||
|
{
|
||
|
return val_char;
|
||
|
}
|
||
|
int test1_int_int(void)
|
||
|
{
|
||
|
return val_int;
|
||
|
}
|
||
|
|
||
|
int test2_int_char(void)
|
||
|
{
|
||
|
return (int)val_char;
|
||
|
}
|
||
|
int test2_int_int(void)
|
||
|
{
|
||
|
return (int)val_int;
|
||
|
}
|
||
|
|
||
|
long test1_long_char(void)
|
||
|
{
|
||
|
return val_char;
|
||
|
}
|
||
|
long test1_long_int(void)
|
||
|
{
|
||
|
return val_int;
|
||
|
}
|
||
|
long test1_long_long(void)
|
||
|
{
|
||
|
return val_long;
|
||
|
}
|
||
|
|
||
|
long test2_long_char(void)
|
||
|
{
|
||
|
return (long)val_char;
|
||
|
}
|
||
|
long test2_long_int(void)
|
||
|
{
|
||
|
return (long)val_int;
|
||
|
}
|
||
|
long test2_long_long(void)
|
||
|
{
|
||
|
return (long)val_long;
|
||
|
}
|
||
|
|
||
|
#define dotest(_n,_a,_v) \
|
||
|
_n=_a; \
|
||
|
printf("%04lx %04lx,",(unsigned long)_n,(unsigned long)_v); \
|
||
|
if(_n!=_v) printf("failed\n"); \
|
||
|
else printf("ok\n")
|
||
|
|
||
|
int main(void)
|
||
|
{
|
||
|
int i;
|
||
|
unsigned long l;
|
||
|
|
||
|
printf("\nwithout cast:\n");
|
||
|
|
||
|
printf("return int\n");
|
||
|
|
||
|
dotest(i,test1_int_char(),0x76);
|
||
|
dotest(i,test1_int_int(),0x5678);
|
||
|
|
||
|
printf("return long\n");
|
||
|
|
||
|
dotest(l,test1_long_char(),0x76);
|
||
|
dotest(l,test1_long_int(),0x5678);
|
||
|
dotest(l,test1_long_long(),0x12345678);
|
||
|
|
||
|
printf("\nwith cast:\n");
|
||
|
|
||
|
printf("return int\n");
|
||
|
|
||
|
dotest(i,test2_int_char(),0x76);
|
||
|
dotest(i,test2_int_int(),0x5678);
|
||
|
|
||
|
printf("return long\n");
|
||
|
|
||
|
dotest(l,test2_long_char(),0x76);
|
||
|
dotest(l,test2_long_int(),0x5678);
|
||
|
dotest(l,test2_long_long(),0x12345678);
|
||
|
|
||
|
return 0;
|
||
|
}
|