#include "config.h"
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <float.h>
#include "libgfortran.h"
#include "../io/io.h"
char *filename = 0;
iexport_data(filename);
unsigned line = 0;
iexport_data(line);
static char buffer[32];
char *
gfc_itoa (int64_t n)
{
int negative;
char *p;
uint64_t t;
if (n == 0)
{
buffer[0] = '0';
buffer[1] = '\0';
return buffer;
}
negative = 0;
t = n;
if (n < 0)
{
negative = 1;
t = -n;
}
p = buffer + sizeof (buffer) - 1;
*p-- = '\0';
while (t != 0)
{
*p-- = '0' + (t % 10);
t /= 10;
}
if (negative)
*p-- = '-';
return ++p;
}
char *
xtoa (uint64_t n)
{
int digit;
char *p;
if (n == 0)
{
buffer[0] = '0';
buffer[1] = '\0';
return buffer;
}
p = buffer + sizeof (buffer) - 1;
*p-- = '\0';
while (n != 0)
{
digit = n & 0xF;
if (digit > 9)
digit += 'A' - '0' - 10;
*p-- = '0' + digit;
n >>= 4;
}
return ++p;
}
int
st_printf (const char *format, ...)
{
int count, total;
va_list arg;
char *p, *q;
stream *s;
total = 0;
s = init_error_stream ();
va_start (arg, format);
for (;;)
{
count = 0;
while (format[count] != '%' && format[count] != '\0')
count++;
if (count != 0)
{
p = salloc_w (s, &count);
memmove (p, format, count);
sfree (s);
}
total += count;
format += count;
if (*format++ == '\0')
break;
switch (*format)
{
case 'c':
count = 1;
p = salloc_w (s, &count);
*p = (char) va_arg (arg, int);
sfree (s);
break;
case 'd':
q = gfc_itoa (va_arg (arg, int));
count = strlen (q);
p = salloc_w (s, &count);
memmove (p, q, count);
sfree (s);
break;
case 'x':
q = xtoa (va_arg (arg, unsigned));
count = strlen (q);
p = salloc_w (s, &count);
memmove (p, q, count);
sfree (s);
break;
case 's':
q = va_arg (arg, char *);
count = strlen (q);
p = salloc_w (s, &count);
memmove (p, q, count);
sfree (s);
break;
case '\0':
return total;
default:
count = 2;
p = salloc_w (s, &count);
p[0] = format[-1];
p[1] = format[0];
sfree (s);
break;
}
total += count;
format++;
}
va_end (arg);
return total;
}
void
st_sprintf (char *buffer, const char *format, ...)
{
va_list arg;
char c, *p;
int count;
va_start (arg, format);
for (;;)
{
c = *format++;
if (c != '%')
{
*buffer++ = c;
if (c == '\0')
break;
continue;
}
c = *format++;
switch (c)
{
case 'c':
*buffer++ = (char) va_arg (arg, int);
break;
case 'd':
p = gfc_itoa (va_arg (arg, int));
count = strlen (p);
memcpy (buffer, p, count);
buffer += count;
break;
case 's':
p = va_arg (arg, char *);
count = strlen (p);
memcpy (buffer, p, count);
buffer += count;
break;
default:
*buffer++ = c;
}
}
va_end (arg);
}
void
show_locus (void)
{
if (!options.locus || filename == NULL)
return;
st_printf ("At line %d of file %s\n", line, filename);
}
#define MAGIC 0x20DE8101
static void
recursion_check (void)
{
static int magic = 0;
if (magic == MAGIC)
sys_exit (4);
magic = MAGIC;
}
void
os_error (const char *message)
{
recursion_check ();
show_locus ();
st_printf ("Operating system error: %s\n%s\n", get_oserror (), message);
sys_exit (1);
}
void
runtime_error (const char *message)
{
recursion_check ();
show_locus ();
st_printf ("Fortran runtime error: %s\n", message);
sys_exit (2);
}
iexport(runtime_error);
void
internal_error (const char *message)
{
recursion_check ();
show_locus ();
st_printf ("Internal Error: %s\n", message);
sys_exit (3);
}
const char *
translate_error (int code)
{
const char *p;
switch (code)
{
case ERROR_EOR:
p = "End of record";
break;
case ERROR_END:
p = "End of file";
break;
case ERROR_OK:
p = "Successful return";
break;
case ERROR_OS:
p = "Operating system error";
break;
case ERROR_BAD_OPTION:
p = "Bad statement option";
break;
case ERROR_MISSING_OPTION:
p = "Missing statement option";
break;
case ERROR_OPTION_CONFLICT:
p = "Conflicting statement options";
break;
case ERROR_ALREADY_OPEN:
p = "File already opened in another unit";
break;
case ERROR_BAD_UNIT:
p = "Unattached unit";
break;
case ERROR_FORMAT:
p = "FORMAT error";
break;
case ERROR_BAD_ACTION:
p = "Incorrect ACTION specified";
break;
case ERROR_ENDFILE:
p = "Read past ENDFILE record";
break;
case ERROR_BAD_US:
p = "Corrupt unformatted sequential file";
break;
case ERROR_READ_VALUE:
p = "Bad value during read";
break;
case ERROR_READ_OVERFLOW:
p = "Numeric overflow on read";
break;
default:
p = "Unknown error code";
break;
}
return p;
}
void
generate_error (int family, const char *message)
{
if (ioparm.iostat != NULL)
*ioparm.iostat = family;
switch (family)
{
case ERROR_EOR:
ioparm.library_return = LIBRARY_EOR;
if (ioparm.eor != 0)
return;
break;
case ERROR_END:
ioparm.library_return = LIBRARY_END;
if (ioparm.end != 0)
return;
break;
default:
ioparm.library_return = LIBRARY_ERROR;
if (ioparm.err != 0)
return;
break;
}
if (ioparm.iostat != NULL)
return;
if (message == NULL)
message =
(family == ERROR_OS) ? get_oserror () : translate_error (family);
runtime_error (message);
}