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#include <stdio.h>
#include <stdarg.h>
#include "umfileint.h"
static FILE *output = NULL;
static int verbose;
static const int do_debug = 1;
void switch_bug(const char *routine)
{
gripe("no match in switch statement in routine; "
"may indicate coding bug in umfile or unexpected header value");
}
void gripe(const char *routine)
{
if (verbose || do_debug)
{
fprintf(output, "umfile: error condition detected in routine %s\n",
routine);
fflush(output);
}
verbose = 0;
}
void error_mesg(const char *fmt, ...)
{
va_list args;
if (verbose || do_debug)
{
va_start(args, fmt);
vfprintf(output, fmt, args);
fprintf(output, "\n");
va_end(args);
fflush(output);
}
verbose = 0;
}
void debug(const char *fmt, ...)
{
va_list args;
if (do_debug)
{
va_start(args, fmt);
fprintf(output, "DEBUG: ");
vfprintf(output, fmt, args);
fprintf(output, "\n");
va_end(args);
fflush(output);
}
}
void errorhandle_init()
{
/* init sets verbose -- called at start of each of the interface routines --
* then first call to error will cause a diagnostic to be printed,
* but then unsets verbose to avoid series of knock-on messages
*/
verbose = 1;
if (output == NULL)
output = stderr;
}
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