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#include <sollya.h>
#include <mpfr.h>
#include <mpfi.h>
#include <stdlib.h>
#include <string.h>
int myownlog(mpfi_t result, mpfi_t x, int n) {
if(n==0) {
/* Implementation of the neperian logarithm */
if(mpfi_nan_p(x)) {
mpfr_t a;
mpfr_init2(a,mpfi_get_prec(result));
mpfi_interv_fr(result,a,a);
mpfr_clear(a);
return 0;
}
if(mpfi_has_zero(x)) {
mpfr_t a,b;
mpfr_init2(a,mpfi_get_prec(result));
mpfr_init2(b,mpfi_get_prec(result));
mpfr_set_inf(a,-1);
mpfi_get_right(b,x);
mpfr_log(b,b,GMP_RNDU);
mpfi_interv_fr(result, a, b);
mpfr_clear(a);
mpfr_clear(b);
return 0;
}
else {
mpfr_t a,b;
mpfr_init2(a,mpfi_get_prec(result));
mpfr_init2(b,mpfi_get_prec(result));
mpfi_get_left(a,x);
mpfr_log(a,a, GMP_RNDD);
mpfi_get_right(b,x);
mpfr_log(b,b,GMP_RNDU);
mpfi_interv_fr(result, a, b);
mpfr_clear(a);
mpfr_clear(b);
return 0;
}
}
if(n==1) {
/* Implementation of 1/x */
mpfi_inv(result,x);
return 0;
}
if(n==2) {
/* Implementation of -1/x^2 */
mpfi_t temp;
mpfi_init2(temp, mpfi_get_prec(result));
mpfi_sqr(temp, x);
mpfi_inv(temp, temp);
mpfi_neg(result, temp);
mpfi_clear(temp);
return 0;
}
/* else */
mpfr_t a,b;
mpfr_init2(a, mpfi_get_prec(result));
mpfr_init2(b, mpfi_get_prec(result));
mpfr_set_inf(a,-1);
mpfr_set_inf(b, 1);
mpfi_interv_fr(result,a,b);
mpfr_clear(a);
mpfr_clear(b);
return 0;
}
int stupid1(mpfi_t result, mpfi_t x, int n) {
(void)x; /* Avoiding "unused parameter" warning */
(void)n; /* Avoiding "unused parameter" warning */
mpfi_set_ui(result, 0);
return 0;
}
int stupid2(mpfi_t result, mpfi_t x, int n) {
(void)x; /* Avoiding "unused parameter" warning */
(void)n; /* Avoiding "unused parameter" warning */
mpfi_set_ui(result, 0);
return 0;
}
int stupid3(mpfi_t result, mpfi_t x, int n) {
(void)x; /* Avoiding "unused parameter" warning */
(void)n; /* Avoiding "unused parameter" warning */
mpfi_set_ui(result, 0);
return 0;
}
int stupid4(mpfi_t result, mpfi_t x, int n) {
(void)x; /* Avoiding "unused parameter" warning */
(void)n; /* Avoiding "unused parameter" warning */
mpfi_set_ui(result, 0);
return 0;
}
int stupid5(mpfi_t result, mpfi_t x, int n) {
(void)x; /* Avoiding "unused parameter" warning */
(void)n; /* Avoiding "unused parameter" warning */
mpfi_set_ui(result, 0);
return 0;
}
int main(void) {
sollya_obj_t f[14];
mpfr_t x,y;
int i;
void *ptr = malloc(1);
char str[256];
char str2[256];
sollya_lib_init();
f[0] = sollya_lib_free_variable();
/* Testing normal use */
f[1] = sollya_lib_build_function_libraryfunction(SOLLYA_X_, "superfunc", myownlog);
sollya_lib_printf("%b (expecting: superfunc)\n", f[1]);
mpfr_init2(x, 30);
mpfr_init2(y, 50);
mpfr_set_ui(x, 2, GMP_RNDN);
sollya_lib_evaluate_function_at_point(y, f[1], x, NULL);
sollya_lib_printf("%v (expecting: approximate value of log(2))\n", y);
sollya_lib_clear_obj(f[1]);
f[1] = sollya_lib_parse_string("diff(superfunc(sin(_x_)))");
sollya_lib_printf("%b (expecting: (diff(superfunc))(sin(_x_)) * cos(_x_))\n", f[1]);
sollya_lib_clear_obj(f[1]);
f[1] = sollya_lib_parse_string("diff(superfunc(_x_))");
sollya_lib_printf("%b (expecting: diff(superfunc))\n", f[1]);
sollya_lib_clear_obj(f[1]);
f[1] = sollya_lib_parse_string("superfunc");
/* Trying to rebind a function already bounded */
f[2] = sollya_lib_build_function_libraryfunction(SOLLYA_X_, "superfunc", myownlog);
sollya_lib_printf("%b (expecting superfunc)\n", f[2]);
f[3] = sollya_lib_build_function_libraryfunction(SOLLYA_X_, "foo", myownlog);
sollya_lib_printf("%b (expecting superfunc)\n", f[3]);
f[4] = sollya_lib_build_function_libraryfunction(SOLLYA_X_, NULL, myownlog);
sollya_lib_printf("%b (expecting superfunc)\n", f[4]);
f[5] = sollya_lib_build_function_libraryfunction(SOLLYA_X_, "exp", myownlog);
sollya_lib_printf("%b (expecting superfunc)\n", f[5]);
for(i=2;i<=5;i++) {
f[6] = sollya_lib_cmp_equal(f[1], f[i]);
sollya_lib_printf("%b (expecting true)\n", f[6]);
sollya_lib_clear_obj(f[6]);
}
/* Trying to bind a function to an already assigned name */
f[6] = sollya_lib_build_function_libraryfunction(SOLLYA_X_, "superfunc", stupid1);
sollya_lib_printf("%b (expecting superfunc_0)\n", f[6]);
/* Leaving NULL as second argument */
f[7] = sollya_lib_build_function_libraryfunction(SOLLYA_X_, NULL, stupid2);
sollya_lib_sprintf(str, "%b", f[7]);
sollya_lib_sprintf(str2, "func_%p", stupid2);
if (strcmp(str, str2)==0) sollya_lib_printf("The behavior when the second argument is NULL is conform to the semantic.\n");
else {
strcpy(str2, "stupid2");
if (strcmp(str, str2)==0) sollya_lib_printf("The behavior when the second argument is NULL is conform to the semantic.\n");
else sollya_lib_printf("The behavior when the second argument is *NOT* conform to the semantic.\n");
}
/* Unauthorized names */
f[8] = sollya_lib_build_function_libraryfunction(SOLLYA_X_, "e]xp", stupid3);
sollya_lib_printf("%b (expecting exp_0)\n", f[8]);
f[9] = sollya_lib_build_function_libraryfunction(SOLLYA_X_, "]0", stupid4);
sollya_lib_sprintf(str, "%b", f[9]);
sollya_lib_sprintf(str2, "func_%p", stupid4);
if (strcmp(str, str2)==0) sollya_lib_printf("The behavior when the second argument is NULL is conform to the semantic.\n");
else {
strcpy(str2, "stupid4");
if (strcmp(str, str2)==0) sollya_lib_printf("The behavior when the second argument is NULL is conform to the semantic.\n");
else sollya_lib_printf("The behavior when the second argument is *NOT* conform to the semantic.\n");
}
f[10] = sollya_lib_build_function_libraryfunction(SOLLYA_X_, "0]a", stupid5);
sollya_lib_printf("%b (expecting a)\n", f[10]);
/* Pointer to non-valid functions, together with NULL/illicit as second argument */
f[11] = sollya_lib_build_function_libraryfunction(SOLLYA_X_, NULL, (int (*)(mpfi_t, mpfi_t, int))(ptr));
sollya_lib_sprintf(str, "%b", f[11]);
sollya_lib_sprintf(str2, "func_%p", ptr);
if (strcmp(str, str2)==0) sollya_lib_printf("Testing NULL/invalid ptr combination: OK\n");
else sollya_lib_printf("Testing NULL/invalid ptr combination: *NOT* OK: %b versus %s\n", f[11], str2);
f[12] = sollya_lib_build_function_libraryfunction(SOLLYA_X_, "", (int (*)(mpfi_t, mpfi_t, int))(&x));
sollya_lib_sprintf(str, "%b", f[12]);
sollya_lib_sprintf(str2, "func_%p", &x);
if (strcmp(str, str2)==0) sollya_lib_printf("Testing NULL/invalid ptr combination: OK\n");
else sollya_lib_printf("Testing NULL/invalid ptr combination: *NOT* OK: %b versus %s\n", f[12], str2);
f[13] = sollya_lib_build_function_libraryfunction(SOLLYA_X_, "*]%", (int (*)(mpfi_t, mpfi_t, int))(ptr));
sollya_lib_sprintf(str, "%b", f[13]);
sollya_lib_sprintf(str2, "func_%p", ptr);
if (strcmp(str, str2)==0) sollya_lib_printf("Testing NULL/invalid ptr combination: OK\n");
else sollya_lib_printf("Testing NULL/invalid ptr combination: *NOT* OK: %b versus %s\n", f[13], str2);
for(i=0;i<=13;i++) sollya_lib_clear_obj(f[i]);
mpfr_clear(x);
mpfr_clear(y);
free(ptr);
sollya_lib_close();
return 0;
}
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