/*
* convert string into decimal value, noting any size suffix
*/
int str_to_decimal(const char *str, long long *val, int kilo, void *data,
int is_seconds)
{
int len, base;
int rc = 1;
#ifdef CONFIG_ARITHMETIC
long long ival;
double dval;
double implied_units = 1.0;
#endif
len = strlen(str);
if (!len)
return 1;
#ifdef CONFIG_ARITHMETIC
if (is_seconds)
implied_units = 1000000.0;
if (str[0] == '(')
rc = evaluate_arithmetic_expression(str, &ival, &dval, implied_units);
if (str[0] == '(' && !rc) {
if (!kilo && is_seconds)
*val = ival / 1000000LL;
else
*val = ival;
}
#endif
if (rc == 1) {
if (strstr(str, "0x") || strstr(str, "0X"))
base = 16;
else
base = 10;
*val = strtoll(str, NULL, base);
if (*val == LONG_MAX && errno == ERANGE)
return 1;
}
if (kilo) {
unsigned long long mult;
int perc = 0;
mult = get_mult_bytes(str, len, data, &perc);
if (perc)
*val = -1ULL - *val;
else
*val *= mult;
} else
*val *= get_mult_time(str, len, is_seconds);
#ifdef CONFIG_ARITHMETIC
verify_exp_parser_decimal(str, *val, kilo, is_seconds);
#endif
return 0;
}
/*
* Convert string into a floating number. Return 1 for success and 0 otherwise.
*/
int str_to_float(const char *str, double *val, int is_time)
{
#ifdef CONFIG_ARITHMETIC
int rc;
long long ival;
double dval;
if (str[0] == '(') {
rc = evaluate_arithmetic_expression(str, &ival, &dval, 1.0, is_time);
if (!rc) {
*val = dval;
return 1;
}
}
#endif
return 1 == sscanf(str, "%lf", val);
}
/*
* These two verification functions are just to gain confidence that
* the arithmetic processing code is always getting the same answer as the
* original number parsing code. Once sufficiently sure that the arithmetic
* code is always getting the right answers, these can be removed.
*/
static void verify_exp_parser_float(const char *str, double implied_units)
{
long long ival;
double dval, tmpval;
if (sscanf(str, "%lf", &tmpval) != 1)
return;
if (evaluate_arithmetic_expression(str, &ival, &dval, implied_units) != 0) {
log_info("Arithmetic failed on '%s'\n", str);
return;
}
if (dval != tmpval) {
log_info("Arithmetic failed on: '%s' got %lf, expected %lf\n",
str, dval, tmpval);
}
}
static void verify_exp_parser_decimal(const char *str, long long val, int kilo, int is_seconds)
{
int rc;
long long ival;
double dval;
double implied_units = 1.0;
if (is_seconds)
implied_units = 1000000.0;
rc = evaluate_arithmetic_expression(str, &ival, &dval, implied_units);
if (!rc) {
if (ival != val)
log_info("Arithmetic failed on '%s', expected %lld, got %lld\n",
str, val, ival);
} else {
log_info("Arithmetic failed on '%s'\n", str);
}
}
