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