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#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <setjmp.h>
#if defined TEST_NATIVE
#define NATIVE_SIGNED int
#define NATIVE_UNSIGNED unsigned
#define NATIVE_UNSIGNED_BITS 32
#define NATIVE_SIGNED_MIN LONG_MIN
#define NATIVE_SIGNED_MAX LONG_MAX
#elif defined TEST_SIMUL
#define SIMUL_ARITH_SUBTYPE unsigned short
#define SIMUL_SUBTYPE_BITS 16
#define SIMUL_NUMBITS 31
#else
#error ====== Either TEST_NATIVE or TEST_SIMUL must be defined.
#endif
#define ARITH_TYPENAME zoinx
#define ARITH_FUNCTION_HEADER static inline
#define ARITH_WARNING(type) z_warn(type)
#define ARITH_ERROR(type) z_error(type)
void z_warn(int type);
void z_error(int type);
#include "arith.c"
#if defined TEST_NATIVE
static inline u_zoinx unsigned_to_uz(unsigned x)
{
return (u_zoinx)x;
}
static inline s_zoinx int_to_sz(int x)
{
return (s_zoinx)x;
}
static inline void print_uz(u_zoinx x)
{
printf("%u", x);
}
static inline void print_sz(s_zoinx x)
{
printf("%d", x);
}
#else
static inline u_zoinx unsigned_to_uz(unsigned x)
{
u_zoinx v;
v.msw = (x >> 16) & 0x7FFFU;
v.lsw = x & 0xFFFFU;
return v;
}
static inline s_zoinx int_to_sz(int x)
{
return unsigned_to_uz((unsigned)x);
}
static inline void print_uz(u_zoinx x)
{
printf("%u", ((unsigned)(x.msw) << 16) + (unsigned)(x.lsw));
}
static inline void print_sz(s_zoinx x)
{
if (x.msw & 0x4000U) {
putchar('-');
x = zoinx_u_neg(x);
}
print_uz(x);
}
#endif
static inline void print_int(int x)
{
printf("%d", x);
}
static jmp_buf jbuf;
void z_warn(int type)
{
switch (type) {
case ARITH_EXCEP_CONV_O:
fputs("[overflow on conversion] ", stdout); break;
case ARITH_EXCEP_NEG_O:
fputs("[overflow on unary minus] ", stdout); break;
case ARITH_EXCEP_NOT_T:
fputs("[trap representation on bitwise inversion] ", stdout);
break;
case ARITH_EXCEP_PLUS_O:
fputs("[overflow on addition] ", stdout); break;
case ARITH_EXCEP_PLUS_U:
fputs("[underflow on addition] ", stdout); break;
case ARITH_EXCEP_MINUS_O:
fputs("[overflow on subtraction] ", stdout); break;
case ARITH_EXCEP_MINUS_U:
fputs("[underflow on subtraction] ", stdout); break;
case ARITH_EXCEP_AND_T:
fputs("[trap representation on bitwise and] ", stdout); break;
case ARITH_EXCEP_XOR_T:
fputs("[trap representation on bitwise xor] ", stdout); break;
case ARITH_EXCEP_OR_T:
fputs("[trap representation on bitwise or] ", stdout); break;
case ARITH_EXCEP_LSH_W:
fputs("[left shift by type width or more] ", stdout); break;
case ARITH_EXCEP_LSH_C:
fputs("[left shift by negative count] ", stdout); break;
case ARITH_EXCEP_LSH_O:
fputs("[overflow on left shift] ", stdout); break;
case ARITH_EXCEP_LSH_U:
fputs("[underflow on left shift] ", stdout); break;
case ARITH_EXCEP_RSH_W:
fputs("[right shift by type width or more] ", stdout); break;
case ARITH_EXCEP_RSH_C:
fputs("[right shift by negative count] ", stdout); break;
case ARITH_EXCEP_RSH_N:
fputs("[right shift of negative value] ", stdout); break;
case ARITH_EXCEP_STAR_O:
fputs("[overflow on multiplication] ", stdout); break;
case ARITH_EXCEP_STAR_U:
fputs("[underflow on multiplication] ", stdout); break;
default:
fprintf(stdout, "UNKNOWN WARNING TYPE: %d\n", type);
exit(EXIT_FAILURE);
}
}
void z_error(int type)
{
switch (type) {
case ARITH_EXCEP_SLASH_D:
fputs("division by 0\n", stdout);
break;
case ARITH_EXCEP_SLASH_O:
fputs("overflow on division\n", stdout);
break;
case ARITH_EXCEP_PCT_D:
fputs("division by 0 on modulus operator\n", stdout);
break;
default:
fprintf(stdout, "UNKNOWN ERROR TYPE: %d\n", type);
exit(EXIT_FAILURE);
}
longjmp(jbuf, 1);
}
int main(void)
{
#define OPTRY_GEN(op, x, y, convx, convy, printz) do { \
printf("%s %s %s -> ", #x, #op, #y); \
if (!setjmp(jbuf)) { \
printz(zoinx_ ## op (convx(x), convy(y))); \
putchar('\n'); \
} \
} while (0)
#define IDENT(x) x
#define OPTRY_UU_U(op, x, y) \
OPTRY_GEN(op, x, y, unsigned_to_uz, unsigned_to_uz, print_uz)
#define OPTRY_UI_U(op, x, y) \
OPTRY_GEN(op, x, y, unsigned_to_uz, IDENT, print_uz)
#define OPTRY_UU_I(op, x, y) \
OPTRY_GEN(op, x, y, unsigned_to_uz, unsigned_to_uz, print_int)
#define OPTRY_SS_S(op, x, y) \
OPTRY_GEN(op, x, y, int_to_sz, int_to_sz, print_sz)
#define OPTRY_SI_S(op, x, y) \
OPTRY_GEN(op, x, y, int_to_sz, IDENT, print_sz)
#define OPTRY_SS_I(op, x, y) \
OPTRY_GEN(op, x, y, int_to_sz, int_to_sz, print_int)
OPTRY_UU_U(u_plus, 3, 4);
OPTRY_UU_U(u_plus, 1549587182, 1790478233);
OPTRY_UU_U(u_minus, 1549587182, 1790478233);
OPTRY_UU_U(u_minus, 1790478233, 1549587182);
OPTRY_UU_U(u_star, 432429875, 347785487);
OPTRY_UU_U(u_slash, 432429875, 34487);
OPTRY_UU_U(u_pct, 432429875, 34487);
OPTRY_UI_U(u_lsh, 1783, 19);
OPTRY_UI_U(u_lsh, 1783, 20);
OPTRY_UI_U(u_lsh, 1783, 21);
OPTRY_UI_U(u_rsh, 475902857, 7);
OPTRY_UI_U(u_rsh, 475902857, 17);
OPTRY_UI_U(u_rsh, 475902857, 38);
OPTRY_SS_S(s_plus, 3, 4);
OPTRY_SS_S(s_plus, 1549587182, 1790478233);
OPTRY_SS_S(s_plus, -1549587182, -1790478233);
OPTRY_SS_S(s_minus, 1549587182, 1790478233);
OPTRY_SS_S(s_minus, 1790478233, 1549587182);
OPTRY_SS_S(s_minus, -1790478233, -1549587182);
OPTRY_SS_S(s_minus, -1790478233, 1549587182);
OPTRY_SS_S(s_star, 432429875, 347785487);
OPTRY_SS_S(s_star, 432429875, -347785487);
OPTRY_SS_S(s_slash, 432429875, 34487);
OPTRY_SS_S(s_slash, -432429875, 34487);
OPTRY_SS_S(s_slash, 432429875, -34487);
OPTRY_SS_S(s_slash, -432429875, -34487);
OPTRY_SS_S(s_slash, 432429875, 0);
OPTRY_SS_S(s_slash, -2147483647 - 1, -1);
OPTRY_SS_S(s_pct, 432429875, 34487);
OPTRY_SS_S(s_pct, 432429875, 0);
OPTRY_SI_S(s_lsh, -1, 10);
OPTRY_SI_S(s_lsh, 1783, 19);
OPTRY_SI_S(s_lsh, 1783, 20);
OPTRY_SI_S(s_lsh, 1783, 21);
OPTRY_SI_S(s_rsh, -1024, 8);
OPTRY_SI_S(s_rsh, 475902857, 7);
OPTRY_SI_S(s_rsh, 475902857, 17);
return 0;
}
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