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monitor: print the invalid char in error message 

It's more friendly to print which char is invalid to user, especially
when user tries to input a float value and expect the monitor to round
it to int. Since we don't round float number when we look for a integer,
telling which char is invalid is less confusing.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
Fam Zheng 2013-08-20 10:58:21 +08:00 committed by Luiz Capitulino
parent 3953e3a5d3
commit 277acfe8b3
1 changed files with 7 additions and 3 deletions
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10
monitor.c
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@ -3171,9 +3171,13 @@ static const MonitorDef monitor_defs[] = {
{ NULL },
};
static void expr_error(Monitor *mon, const char *msg)
static void expr_error(Monitor *mon, const char *fmt, ...)
{
monitor_printf(mon, "%s\n", msg);
va_list ap;
va_start(ap, fmt);
monitor_vprintf(mon, fmt, ap);
monitor_printf(mon, "\n");
va_end(ap);
siglongjmp(expr_env, 1);
}
@ -3291,7 +3295,7 @@ static int64_t expr_unary(Monitor *mon)
expr_error(mon, "number too large");
}
if (pch == p) {
expr_error(mon, "invalid char in expression");
expr_error(mon, "invalid char '%c' in expression", *p);
}
pch = p;
while (qemu_isspace(*pch))