char *
mpc_get_str (int base, size_t n, mpc_srcptr op, mpc_rnd_t rnd)
{
size_t needed_size;
char *real_str;
char *imag_str;
char *complex_str = NULL;
if (base < 2 || base > 36)
return NULL;
real_str = get_pretty_str (base, n, MPC_RE (op), MPC_RND_RE (rnd));
imag_str = get_pretty_str (base, n, MPC_IM (op), MPC_RND_IM (rnd));
needed_size = strlen (real_str) + strlen (imag_str) + 4;
complex_str = mpc_alloc_str (needed_size);
MPC_ASSERT (complex_str != NULL);
strcpy (complex_str, "(");
strcat (complex_str, real_str);
strcat (complex_str, " ");
strcat (complex_str, imag_str);
strcat (complex_str, ")");
mpc_free_str (real_str);
mpc_free_str (imag_str);
return complex_str;
}
string mpcomplex::to_string(int precision) {
int base = 10;
char * stringRepresentation = mpc_get_str( base , precision , mpc_val , mpc_rnd );
string returnValue = stringRepresentation;
mpc_free_str( stringRepresentation );
return returnValue;
}
/* Extract from the stream the longest string of characters which are neither
whitespace nor brackets (except for an optional bracketed n-char_sequence
directly following nan or @nan@ independently of case).
The user must free the returned string. */
static char *
extract_string (FILE *stream)
{
int c;
size_t nread = 0;
size_t strsize = 100;
char *str = mpc_alloc_str (strsize);
size_t lenstr;
c = getc (stream);
while (c != EOF && c != '\n'
&& !isspace ((unsigned char) c)
&& c != '(' && c != ')') {
str [nread] = (char) c;
nread++;
if (nread == strsize) {
str = mpc_realloc_str (str, strsize, 2 * strsize);
strsize *= 2;
}
c = getc (stream);
}
str = mpc_realloc_str (str, strsize, nread + 1);
strsize = nread + 1;
str [nread] = '\0';
if (nread == 0)
return str;
lenstr = nread;
if (c == '(') {
size_t n;
char *suffix;
int ret;
/* (n-char-sequence) only after a NaN */
if ((nread != 3
|| tolower ((unsigned char) (str[0])) != 'n'
|| tolower ((unsigned char) (str[1])) != 'a'
|| tolower ((unsigned char) (str[2])) != 'n')
&& (nread != 5
|| str[0] != '@'
|| tolower ((unsigned char) (str[1])) != 'n'
|| tolower ((unsigned char) (str[2])) != 'a'
|| tolower ((unsigned char) (str[3])) != 'n'
|| str[4] != '@')) {
ungetc (c, stream);
return str;
}
suffix = extract_suffix (stream);
nread += strlen (suffix) + 1;
if (nread >= strsize) {
str = mpc_realloc_str (str, strsize, nread + 1);
strsize = nread + 1;
}
/* Warning: the sprintf does not allow overlap between arguments. */
ret = sprintf (str + lenstr, "(%s", suffix);
MPC_ASSERT (ret >= 0);
n = lenstr + (size_t) ret;
MPC_ASSERT (n == nread);
c = getc (stream);
if (c == ')') {
str = mpc_realloc_str (str, strsize, nread + 2);
strsize = nread + 2;
str [nread] = (char) c;
str [nread+1] = '\0';
nread++;
}
else if (c != EOF)
ungetc (c, stream);
mpc_free_str (suffix);
}
else if (c != EOF)
ungetc (c, stream);
return str;
}
int
mpc_inp_str (mpc_ptr rop, FILE *stream, size_t *read, int base,
mpc_rnd_t rnd_mode)
{
size_t white, nread = 0;
int inex = -1;
int c;
char *str;
if (stream == NULL)
stream = stdin;
white = skip_whitespace (stream);
c = getc (stream);
if (c != EOF) {
if (c == '(') {
char *real_str;
char *imag_str;
size_t n;
int ret;
nread++; /* the opening parenthesis */
white = skip_whitespace (stream);
real_str = extract_string (stream);
nread += strlen(real_str);
c = getc (stream);
if (!isspace ((unsigned int) c)) {
if (c != EOF)
ungetc (c, stream);
mpc_free_str (real_str);
goto error;
}
else
ungetc (c, stream);
white += skip_whitespace (stream);
imag_str = extract_string (stream);
nread += strlen (imag_str);
str = mpc_alloc_str (nread + 2);
ret = sprintf (str, "(%s %s", real_str, imag_str);
MPC_ASSERT (ret >= 0);
n = (size_t) ret;
MPC_ASSERT (n == nread + 1);
mpc_free_str (real_str);
mpc_free_str (imag_str);
white += skip_whitespace (stream);
c = getc (stream);
if (c == ')') {
str = mpc_realloc_str (str, nread +2, nread + 3);
str [nread+1] = (char) c;
str [nread+2] = '\0';
nread++;
}
else if (c != EOF)
ungetc (c, stream);
}
else {
if (c != EOF)
ungetc (c, stream);
str = extract_string (stream);
nread += strlen (str);
}
inex = mpc_set_str (rop, str, base, rnd_mode);
mpc_free_str (str);
}
error:
if (inex == -1) {
mpfr_set_nan (MPC_RE(rop));
mpfr_set_nan (MPC_IM(rop));
}
if (read != NULL)
*read = white + nread;
return inex;
}
static void
check_set_str (mpfr_exp_t exp_max)
{
mpc_t expected;
mpc_t got;
char *str;
mpfr_prec_t prec;
mpfr_exp_t exp_min;
int base;
mpc_init2 (expected, 1024);
mpc_init2 (got, 1024);
exp_min = mpfr_get_emin ();
if (exp_max <= 0)
exp_max = mpfr_get_emax ();
else if (exp_max > mpfr_get_emax ())
exp_max = mpfr_get_emax();
if (-exp_max > exp_min)
exp_min = - exp_max;
for (prec = 2; prec < 1024; prec += 7)
{
mpc_set_prec (got, prec);
mpc_set_prec (expected, prec);
base = 2 + (int) gmp_urandomm_ui (rands, 35);
/* uses external variable rands from random.c */
mpfr_set_nan (MPC_RE (expected));
mpfr_set_inf (MPC_IM (expected), prec % 2 - 1);
str = mpc_get_str (base, 0, expected, MPC_RNDNN);
if (mpfr_nan_p (MPC_RE (got)) == 0
|| mpfr_cmp (MPC_IM (got), MPC_IM (expected)) != 0)
{
printf ("Error: mpc_set_str o mpc_get_str != Id\n"
"in base %u with str=\"%s\"\n", base, str);
MPC_OUT (expected);
printf (" ");
MPC_OUT (got);
exit (1);
}
mpc_free_str (str);
test_default_random (expected, exp_min, exp_max, 128, 25);
str = mpc_get_str (base, 0, expected, MPC_RNDNN);
if (mpc_set_str (got, str, base, MPC_RNDNN) == -1
|| mpc_cmp (got, expected) != 0)
{
printf ("Error: mpc_set_str o mpc_get_str != Id\n"
"in base %u with str=\"%s\"\n", base, str);
MPC_OUT (expected);
printf (" ");
MPC_OUT (got);
exit (1);
}
mpc_free_str (str);
}
#ifdef HAVE_SETLOCALE
{
/* Check with ',' as a decimal point */
char *old_locale;
old_locale = setlocale (LC_ALL, "de_DE");
if (old_locale != NULL)
{
str = mpc_get_str (10, 0, expected, MPC_RNDNN);
if (mpc_set_str (got, str, 10, MPC_RNDNN) == -1
|| mpc_cmp (got, expected) != 0)
{
printf ("Error: mpc_set_str o mpc_get_str != Id\n"
"with str=\"%s\"\n", str);
MPC_OUT (expected);
printf (" ");
MPC_OUT (got);
exit (1);
}
mpc_free_str (str);
setlocale (LC_ALL, old_locale);
}
}
#endif /* HAVE_SETLOCALE */
/* the real part has a zero exponent in base ten (fixed in r439) */
mpc_set_prec (expected, 37);
mpc_set_prec (got, 37);
mpc_set_str (expected, "921FC04EDp-35 ", 16, GMP_RNDN);
str = mpc_get_str (10, 0, expected, MPC_RNDNN);
if (mpc_set_str (got, str, 10, MPC_RNDNN) == -1
|| mpc_cmp (got, expected) != 0)
{
printf ("Error: mpc_set_str o mpc_get_str != Id\n"
"with str=\"%s\"\n", str);
MPC_OUT (expected);
printf (" ");
MPC_OUT (got);
exit (1);
}
mpc_free_str (str);
str = mpc_get_str (1, 0, expected, MPC_RNDNN);
if (str != NULL)
{
printf ("Error: mpc_get_str with base==1 should fail\n");
exit (1);
}
mpc_clear (expected);
mpc_clear (got);
}
