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/* Copyright (C) 2003, 2004  Free Software Foundation.
 
   Verify that built-in math function constant folding of log & exp is
   correctly performed by the compiler.
 
   Written by Kaveh Ghazi, 2003-09-05.  */
 
/* { dg-do link } */
/* { dg-options "-ffast-math" } */
 
/* Define "e" with as many bits as found in builtins.c:dconste.  */
#define M_E  2.7182818284590452353602874713526624977572470936999595749669676277241
#define M_EF 2.7182818284590452353602874713526624977572470936999595749669676277241F
#define M_EL 2.7182818284590452353602874713526624977572470936999595749669676277241L
/* Precision for comparison tests.  */
#define PREC  (sizeof (float) < sizeof (double) ? 0.0000001 : PRECF)
#define PRECF 0.0001F
#define PRECL (sizeof (float) < sizeof (long double)    \
               ? 0.0000000000001L : PRECF)
#define PROTOTYPE(FN) extern double FN(double); extern float FN##f(float); \
  extern long double FN##l(long double);
#define PROTOTYPE2(FN) extern double FN(double, double); \
  extern float FN##f(float, float); \
  extern long double FN##l(long double, long double);
 
PROTOTYPE(exp)
PROTOTYPE(exp2)
PROTOTYPE(exp10)
PROTOTYPE(log)
PROTOTYPE(log2)
PROTOTYPE(log10)
PROTOTYPE(pow10)
PROTOTYPE(sqrt)
PROTOTYPE(cbrt)
PROTOTYPE2(pow)
 
void test(double d1, double d2, float f1, float f2,
          long double ld1, long double ld2)
{
  /* Test logN(1) -> 0.  */
#define LOG_1(LOG) \
 extern void link_failure_##LOG##_1(void); \
 if (LOG(1.0) != 0.0 || LOG##f(1.0F) != 0.0F || LOG##l(1.0L) != 0.0L) \
    link_failure_##LOG##_1()
 
  LOG_1(log);
  LOG_1(log2);
  LOG_1(log10);
 
  /* Test logN(N) -> 1.  */
#define LOG_N(LOG, BASE) \
 extern void link_failure_##LOG##_N(void); \
 if (LOG(BASE) != 1.0 || LOG##f(BASE##F) != 1.0F || LOG##l(BASE##L) != 1.0L) \
    link_failure_##LOG##_N()
 
  LOG_N(log2, 2.0);
  LOG_N(log10, 10.0);
 
  /* Test logN(expN(x)) -> x.  */
#define LOGEXP_SAME(LOG, EXP) \
 extern void link_failure_##LOG##_##EXP##_same(void); \
 if (LOG(EXP(d1)) != d1 || LOG##f(EXP##f(f1)) != f1 \
  || LOG##l(EXP##l(ld1)) != ld1) link_failure_##LOG##_##EXP##_same()
 
  LOGEXP_SAME(log,exp);
  LOGEXP_SAME(log2,exp2);
  LOGEXP_SAME(log10,exp10);
  LOGEXP_SAME(log10,pow10);
 
  /* Test logN(expM(x)) -> x*logN(M).  */
#define LOGEXP(LOG, EXP, BASE) \
 extern void link_failure_##LOG##_##EXP(void); \
 if (LOG(EXP(d1)) != d1*LOG(BASE) || LOG##f(EXP##f(f1)) != f1*LOG##f(BASE##F) \
  || LOG##l(EXP##l(ld1)) != ld1*LOG##l(BASE##L)) link_failure_##LOG##_##EXP()
 
  LOGEXP(log,exp2,2.0);
  LOGEXP(log,exp10,10.0);
  LOGEXP(log,pow10,10.0);
  LOGEXP(log2,exp,M_E);
  LOGEXP(log2,exp2,2.0);
  LOGEXP(log2,exp10,10.0);
  LOGEXP(log2,pow10,10.0);
  LOGEXP(log10,exp,M_E);
  LOGEXP(log10,exp2,2.0);
  LOGEXP(log10,exp10,10.0);
  LOGEXP(log10,pow10,10.0);
 
  /* Test logN(sqrt(x)) -> 0.5*logN(x).  */
#define LOG_SQRT(LOG) \
 extern void link_failure_##LOG##_sqrt(void); \
 if (LOG(sqrt(d1)) != 0.5*LOG(d1) || LOG##f(sqrtf(f1)) != 0.5F*LOG##f(f1) \
  || LOG##l(sqrtl(ld1)) != 0.5L*LOG##l(ld1)) link_failure_##LOG##_sqrt()
 
  LOG_SQRT(log);
  LOG_SQRT(log2);
  LOG_SQRT(log10);
 
  /* Test sqrt(expN(x)) -> expN(x*0.5).  */
#define SQRT_EXP(EXP) \
 extern void link_failure_sqrt_##EXP(void); \
 if (sqrt(EXP(d1)) != EXP(d1*0.5) || sqrtf(EXP##f(f1)) != EXP##f(f1*0.5F) \
  || sqrtl(EXP##l(ld1)) != EXP##l(ld1*0.5L)) link_failure_sqrt_##EXP()
 
  SQRT_EXP(exp);
  SQRT_EXP(exp2);
  SQRT_EXP(exp10);
  SQRT_EXP(pow10);
 
  /* Test logN(cbrt(x)) -> (1/3)*logN(x).  */
#define LOG_CBRT(LOG) \
 extern void link_failure_##LOG##_cbrt(void); \
 if (LOG(cbrt(d1)) != (1.0/3)*LOG(d1) \
  || LOG##f(cbrtf(f1)) != (1.0F/3)*LOG##f(f1) \
  || LOG##l(cbrtl(ld1)) != (1.0L/3)*LOG##l(ld1)) link_failure_##LOG##_cbrt()
 
  LOG_CBRT(log);
  LOG_CBRT(log2);
  LOG_CBRT(log10);
 
  /* Test cbrt(expN(x)) -> expN(x/3).  */
#define CBRT_EXP(EXP) \
 extern void link_failure_cbrt_##EXP(void); \
 if (cbrt(EXP(d1)) != EXP(d1/3.0) || cbrtf(EXP##f(f1)) != EXP##f(f1/3.0F) \
  || cbrtl(EXP##l(ld1)) != EXP##l(ld1/3.0L)) link_failure_cbrt_##EXP()
 
  CBRT_EXP(exp);
  CBRT_EXP(exp2);
  CBRT_EXP(exp10);
  CBRT_EXP(pow10);
 
  /* Test logN(pow(x,y)) -> y*logN(x).  */
#define LOG_POW(LOG, POW) \
 extern void link_failure_##LOG##_##POW(void); \
 if (LOG(POW(d1,d2)) != d2*LOG(d1) || LOG##f(POW##f(f1,f2)) != f2*LOG##f(f1) \
  || LOG##l(POW##l(ld1,ld2)) != ld2*LOG##l(ld1)) link_failure_##LOG##_##POW()
 
  LOG_POW(log,pow);
  LOG_POW(log2,pow);
  LOG_POW(log10,pow);
 
  /* Test pow(expN(x),y)) -> expN(x*y).  */
#define POW_EXP(POW, EXP) \
 extern void link_failure_##POW##_##EXP(void); \
 if (POW(EXP(d1),d2) != EXP(d1*d2) || POW##f(EXP##f(f1),f2) != EXP##f(f1*f2) \
  || POW##l(EXP##l(ld1),ld2) != EXP##l(ld1*ld2)) link_failure_##POW##_##EXP()
 
  POW_EXP(pow, exp);
  POW_EXP(pow, exp2);
  POW_EXP(pow, exp10);
  POW_EXP(pow, pow10);
 
  /* Test expN(0) -> 1.  */
#define EXP_0(EXP) \
 extern void link_failure_##EXP##_0(void); \
 if (EXP(0.0) != 1.0 || EXP##f(0.0F) != 1.0F || EXP##l(0.0L) != 1.0L) \
  link_failure_##EXP##_0()
 
  EXP_0(exp);
  EXP_0(exp2);
  EXP_0(exp10);
  EXP_0(pow10);
 
  /* Test expN(1) -> N.  */
#define EXP_N(EXP, BASE) \
 extern void link_failure_##EXP##_N(void); \
 if (EXP(1.0) != BASE || EXP##f(1.0F) != BASE##F || EXP##l(1.0L) != BASE##L) \
  link_failure_##EXP##_N()
 
  EXP_N(exp, M_E);
  EXP_N(exp2, 2.0);
  EXP_N(exp10, 10.0);
  EXP_N(pow10, 10.0);
 
  /* Test expN(integer) -> N*N*N*...  */
#define EXP_INT(EXP, BASE) \
 extern void link_failure_##EXP##_INT(void); \
 if (EXP(5.0) < (BASE)*(BASE)*(BASE)*(BASE)*(BASE) - PREC \
  || EXP(5.0) > (BASE)*(BASE)*(BASE)*(BASE)*(BASE) + PREC \
  || EXP##f(5.0F) < (BASE##F)*(BASE##F)*(BASE##F)*(BASE##F)*(BASE##F) -PRECF \
  || EXP##f(5.0F) > (BASE##F)*(BASE##F)*(BASE##F)*(BASE##F)*(BASE##F) +PRECF \
  || EXP##l(5.0L) < (BASE##L)*(BASE##L)*(BASE##L)*(BASE##L)*(BASE##L) -PRECL \
  || EXP##l(5.0L) > (BASE##L)*(BASE##L)*(BASE##L)*(BASE##L)*(BASE##L) +PRECL) \
   link_failure_##EXP##_INT()
 
  EXP_INT(exp, M_E);
  EXP_INT(exp2, 2.0);
  EXP_INT(exp10, 10.0);
  EXP_INT(pow10, 10.0);
 
  /* Test expN(logN(x)) -> x.  */
#define EXPLOG_SAME(EXP, LOG) \
 extern void link_failure_##EXP##_##LOG##_same(void); \
 if (EXP(LOG(d1)) != d1 || EXP##f(LOG##f(f1)) != f1 \
  || EXP##l(LOG##l(ld1)) != ld1) link_failure_##EXP##_##LOG##_same()
 
  EXPLOG_SAME(exp, log);
  EXPLOG_SAME(exp2, log2);
  EXPLOG_SAME(exp10, log10);
  EXPLOG_SAME(pow10, log10);
 
  /* Test expN(x)*expN(y)) -> expN(x+y).  */
#define EXPXEXP(EXP) \
 extern void link_failure_##EXP##X##EXP(void); \
 if (EXP(d1)*EXP(d2) != EXP(d1+d2) || EXP##f(f1)*EXP##f(f2) != EXP##f(f1+f2) \
  || EXP##l(ld1)*EXP##l(ld2) != EXP##l(ld1+ld2)) link_failure_##EXP##X##EXP()
 
  EXPXEXP(exp);
  EXPXEXP(exp2);
  EXPXEXP(exp10);
  EXPXEXP(pow10);
 
  /* Test x/expN(y) -> x*expN(-y).  */
  /* Test expN(x)/expN(y) -> expN(x-y).  */
#define DIVEXP(EXP) \
 extern void link_failure_div1_##EXP(void); \
 if (d1/EXP(d2) != d1*EXP(-d2) || f1/EXP##f(f2) != f1*EXP##f(-f2) \
  || ld1/EXP##l(ld2) != ld1*EXP##l(-ld2)) link_failure_div1_##EXP(); \
 extern void link_failure_div2_##EXP(void); \
 if (EXP(d1)/EXP(d2) != EXP(d1-d2) || EXP##f(f1)/EXP##f(f2) != EXP##f(f1-f2) \
  || EXP##l(ld1)/EXP##l(ld2) != EXP##l(ld1-ld2)) link_failure_div2_##EXP()
 
  DIVEXP(exp);
  DIVEXP(exp2);
  DIVEXP(exp10);
  DIVEXP(pow10);
}
 
int main (void)
{
  return 0;
}

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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [torture/] [builtin-explog-1.c] - Blame information for rev 754

Line No.	Rev	Author	Line
1	689	jeremybenn	`/* Copyright (C) 2003, 2004 Free Software Foundation.`
2
3			`Verify that built-in math function constant folding of log & exp is`
4			`correctly performed by the compiler.`
5
6			`Written by Kaveh Ghazi, 2003-09-05. */`
7
8			`/* { dg-do link } */`
9			`/* { dg-options "-ffast-math" } */`
10
11			`/* Define "e" with as many bits as found in builtins.c:dconste. */`
12			`#define M_E 2.7182818284590452353602874713526624977572470936999595749669676277241`
13			`#define M_EF 2.7182818284590452353602874713526624977572470936999595749669676277241F`
14			`#define M_EL 2.7182818284590452353602874713526624977572470936999595749669676277241L`
15			`/* Precision for comparison tests. */`
16			`#define PREC (sizeof (float) < sizeof (double) ? 0.0000001 : PRECF)`
17			`#define PRECF 0.0001F`
18			`#define PRECL (sizeof (float) < sizeof (long double) \`
19			`? 0.0000000000001L : PRECF)`
20			`#define PROTOTYPE(FN) extern double FN(double); extern float FN##f(float); \`
21			`extern long double FN##l(long double);`
22			`#define PROTOTYPE2(FN) extern double FN(double, double); \`
23			`extern float FN##f(float, float); \`
24			`extern long double FN##l(long double, long double);`
25
26			`PROTOTYPE(exp)`
27			`PROTOTYPE(exp2)`
28			`PROTOTYPE(exp10)`
29			`PROTOTYPE(log)`
30			`PROTOTYPE(log2)`
31			`PROTOTYPE(log10)`
32			`PROTOTYPE(pow10)`
33			`PROTOTYPE(sqrt)`
34			`PROTOTYPE(cbrt)`
35			`PROTOTYPE2(pow)`
36
37			`void test(double d1, double d2, float f1, float f2,`
38			`long double ld1, long double ld2)`
39			`{`
40			`/* Test logN(1) -> 0. */`
41			`#define LOG_1(LOG) \`
42			`extern void link_failure_##LOG##_1(void); \`
43			`if (LOG(1.0) != 0.0 \|\| LOG##f(1.0F) != 0.0F \|\| LOG##l(1.0L) != 0.0L) \`
44			`link_failure_##LOG##_1()`
45
46			`LOG_1(log);`
47			`LOG_1(log2);`
48			`LOG_1(log10);`
49
50			`/* Test logN(N) -> 1. */`
51			`#define LOG_N(LOG, BASE) \`
52			`extern void link_failure_##LOG##_N(void); \`
53			`if (LOG(BASE) != 1.0 \|\| LOG##f(BASE##F) != 1.0F \|\| LOG##l(BASE##L) != 1.0L) \`
54			`link_failure_##LOG##_N()`
55
56			`LOG_N(log2, 2.0);`
57			`LOG_N(log10, 10.0);`
58
59			`/* Test logN(expN(x)) -> x. */`
60			`#define LOGEXP_SAME(LOG, EXP) \`
61			`extern void link_failure_##LOG##_##EXP##_same(void); \`
62			`if (LOG(EXP(d1)) != d1 \|\| LOG##f(EXP##f(f1)) != f1 \`
63			`\|\| LOG##l(EXP##l(ld1)) != ld1) link_failure_##LOG##_##EXP##_same()`
64
65			`LOGEXP_SAME(log,exp);`
66			`LOGEXP_SAME(log2,exp2);`
67			`LOGEXP_SAME(log10,exp10);`
68			`LOGEXP_SAME(log10,pow10);`
69
70			`/* Test logN(expM(x)) -> xlogN(M). /`
71			`#define LOGEXP(LOG, EXP, BASE) \`
72			`extern void link_failure_##LOG##_##EXP(void); \`
73			`if (LOG(EXP(d1)) != d1LOG(BASE) \|\| LOG##f(EXP##f(f1)) != f1LOG##f(BASE##F) \`
74			`\|\| LOG##l(EXP##l(ld1)) != ld1*LOG##l(BASE##L)) link_failure_##LOG##_##EXP()`
75
76			`LOGEXP(log,exp2,2.0);`
77			`LOGEXP(log,exp10,10.0);`
78			`LOGEXP(log,pow10,10.0);`
79			`LOGEXP(log2,exp,M_E);`
80			`LOGEXP(log2,exp2,2.0);`
81			`LOGEXP(log2,exp10,10.0);`
82			`LOGEXP(log2,pow10,10.0);`
83			`LOGEXP(log10,exp,M_E);`
84			`LOGEXP(log10,exp2,2.0);`
85			`LOGEXP(log10,exp10,10.0);`
86			`LOGEXP(log10,pow10,10.0);`
87
88			`/* Test logN(sqrt(x)) -> 0.5logN(x). /`
89			`#define LOG_SQRT(LOG) \`
90			`extern void link_failure_##LOG##_sqrt(void); \`
91			`if (LOG(sqrt(d1)) != 0.5LOG(d1) \|\| LOG##f(sqrtf(f1)) != 0.5FLOG##f(f1) \`
92			`\|\| LOG##l(sqrtl(ld1)) != 0.5L*LOG##l(ld1)) link_failure_##LOG##_sqrt()`
93
94			`LOG_SQRT(log);`
95			`LOG_SQRT(log2);`
96			`LOG_SQRT(log10);`
97
98			`/* Test sqrt(expN(x)) -> expN(x0.5). /`
99			`#define SQRT_EXP(EXP) \`
100			`extern void link_failure_sqrt_##EXP(void); \`
101			`if (sqrt(EXP(d1)) != EXP(d10.5) \|\| sqrtf(EXP##f(f1)) != EXP##f(f10.5F) \`
102			`\|\| sqrtl(EXP##l(ld1)) != EXP##l(ld1*0.5L)) link_failure_sqrt_##EXP()`
103
104			`SQRT_EXP(exp);`
105			`SQRT_EXP(exp2);`
106			`SQRT_EXP(exp10);`
107			`SQRT_EXP(pow10);`
108
109			`/* Test logN(cbrt(x)) -> (1/3)logN(x). /`
110			`#define LOG_CBRT(LOG) \`
111			`extern void link_failure_##LOG##_cbrt(void); \`
112			`if (LOG(cbrt(d1)) != (1.0/3)*LOG(d1) \`
113			`\|\| LOG##f(cbrtf(f1)) != (1.0F/3)*LOG##f(f1) \`
114			`\|\| LOG##l(cbrtl(ld1)) != (1.0L/3)*LOG##l(ld1)) link_failure_##LOG##_cbrt()`
115
116			`LOG_CBRT(log);`
117			`LOG_CBRT(log2);`
118			`LOG_CBRT(log10);`
119
120			`/* Test cbrt(expN(x)) -> expN(x/3). */`
121			`#define CBRT_EXP(EXP) \`
122			`extern void link_failure_cbrt_##EXP(void); \`
123			`if (cbrt(EXP(d1)) != EXP(d1/3.0) \|\| cbrtf(EXP##f(f1)) != EXP##f(f1/3.0F) \`
124			`\|\| cbrtl(EXP##l(ld1)) != EXP##l(ld1/3.0L)) link_failure_cbrt_##EXP()`
125
126			`CBRT_EXP(exp);`
127			`CBRT_EXP(exp2);`
128			`CBRT_EXP(exp10);`
129			`CBRT_EXP(pow10);`
130
131			`/* Test logN(pow(x,y)) -> ylogN(x). /`
132			`#define LOG_POW(LOG, POW) \`
133			`extern void link_failure_##LOG##_##POW(void); \`
134			`if (LOG(POW(d1,d2)) != d2LOG(d1) \|\| LOG##f(POW##f(f1,f2)) != f2LOG##f(f1) \`
135			`\|\| LOG##l(POW##l(ld1,ld2)) != ld2*LOG##l(ld1)) link_failure_##LOG##_##POW()`
136
137			`LOG_POW(log,pow);`
138			`LOG_POW(log2,pow);`
139			`LOG_POW(log10,pow);`
140
141			`/* Test pow(expN(x),y)) -> expN(xy). /`
142			`#define POW_EXP(POW, EXP) \`
143			`extern void link_failure_##POW##_##EXP(void); \`
144			`if (POW(EXP(d1),d2) != EXP(d1d2) \|\| POW##f(EXP##f(f1),f2) != EXP##f(f1f2) \`
145			`\|\| POW##l(EXP##l(ld1),ld2) != EXP##l(ld1*ld2)) link_failure_##POW##_##EXP()`
146
147			`POW_EXP(pow, exp);`
148			`POW_EXP(pow, exp2);`
149			`POW_EXP(pow, exp10);`
150			`POW_EXP(pow, pow10);`
151
152			`/* Test expN(0) -> 1. */`
153			`#define EXP_0(EXP) \`
154			`extern void link_failure_##EXP##_0(void); \`
155			`if (EXP(0.0) != 1.0 \|\| EXP##f(0.0F) != 1.0F \|\| EXP##l(0.0L) != 1.0L) \`
156			`link_failure_##EXP##_0()`
157
158			`EXP_0(exp);`
159			`EXP_0(exp2);`
160			`EXP_0(exp10);`
161			`EXP_0(pow10);`
162
163			`/* Test expN(1) -> N. */`
164			`#define EXP_N(EXP, BASE) \`
165			`extern void link_failure_##EXP##_N(void); \`
166			`if (EXP(1.0) != BASE \|\| EXP##f(1.0F) != BASE##F \|\| EXP##l(1.0L) != BASE##L) \`
167			`link_failure_##EXP##_N()`
168
169			`EXP_N(exp, M_E);`
170			`EXP_N(exp2, 2.0);`
171			`EXP_N(exp10, 10.0);`
172			`EXP_N(pow10, 10.0);`
173
174			`/* Test expN(integer) -> NNN... /`
175			`#define EXP_INT(EXP, BASE) \`
176			`extern void link_failure_##EXP##_INT(void); \`
177			`if (EXP(5.0) < (BASE)(BASE)(BASE)(BASE)(BASE) - PREC \`
178			`\|\| EXP(5.0) > (BASE)(BASE)(BASE)(BASE)(BASE) + PREC \`
179			`\|\| EXP##f(5.0F) < (BASE##F)(BASE##F)(BASE##F)(BASE##F)(BASE##F) -PRECF \`
180			`\|\| EXP##f(5.0F) > (BASE##F)(BASE##F)(BASE##F)(BASE##F)(BASE##F) +PRECF \`
181			`\|\| EXP##l(5.0L) < (BASE##L)(BASE##L)(BASE##L)(BASE##L)(BASE##L) -PRECL \`
182			`\|\| EXP##l(5.0L) > (BASE##L)(BASE##L)(BASE##L)(BASE##L)(BASE##L) +PRECL) \`
183			`link_failure_##EXP##_INT()`
184
185			`EXP_INT(exp, M_E);`
186			`EXP_INT(exp2, 2.0);`
187			`EXP_INT(exp10, 10.0);`
188			`EXP_INT(pow10, 10.0);`
189
190			`/* Test expN(logN(x)) -> x. */`
191			`#define EXPLOG_SAME(EXP, LOG) \`
192			`extern void link_failure_##EXP##_##LOG##_same(void); \`
193			`if (EXP(LOG(d1)) != d1 \|\| EXP##f(LOG##f(f1)) != f1 \`
194			`\|\| EXP##l(LOG##l(ld1)) != ld1) link_failure_##EXP##_##LOG##_same()`
195
196			`EXPLOG_SAME(exp, log);`
197			`EXPLOG_SAME(exp2, log2);`
198			`EXPLOG_SAME(exp10, log10);`
199			`EXPLOG_SAME(pow10, log10);`
200
201			`/* Test expN(x)expN(y)) -> expN(x+y). /`
202			`#define EXPXEXP(EXP) \`
203			`extern void link_failure_##EXP##X##EXP(void); \`
204			`if (EXP(d1)EXP(d2) != EXP(d1+d2) \|\| EXP##f(f1)EXP##f(f2) != EXP##f(f1+f2) \`
205			`\|\| EXP##l(ld1)*EXP##l(ld2) != EXP##l(ld1+ld2)) link_failure_##EXP##X##EXP()`
206
207			`EXPXEXP(exp);`
208			`EXPXEXP(exp2);`
209			`EXPXEXP(exp10);`
210			`EXPXEXP(pow10);`
211
212			`/* Test x/expN(y) -> xexpN(-y). /`
213			`/* Test expN(x)/expN(y) -> expN(x-y). */`
214			`#define DIVEXP(EXP) \`
215			`extern void link_failure_div1_##EXP(void); \`
216			`if (d1/EXP(d2) != d1EXP(-d2) \|\| f1/EXP##f(f2) != f1EXP##f(-f2) \`
217			`\|\| ld1/EXP##l(ld2) != ld1*EXP##l(-ld2)) link_failure_div1_##EXP(); \`
218			`extern void link_failure_div2_##EXP(void); \`
219			`if (EXP(d1)/EXP(d2) != EXP(d1-d2) \|\| EXP##f(f1)/EXP##f(f2) != EXP##f(f1-f2) \`
220			`\|\| EXP##l(ld1)/EXP##l(ld2) != EXP##l(ld1-ld2)) link_failure_div2_##EXP()`
221
222			`DIVEXP(exp);`
223			`DIVEXP(exp2);`
224			`DIVEXP(exp10);`
225			`DIVEXP(pow10);`
226			`}`
227
228			`int main (void)`
229			`{`
230			`return 0;`
231			`}`