SR_API char *sr_period_string(uint64_t v_p, uint64_t v_q)
{
double freq, v;
- char *o;
- int prec, r;
+ int prec;
freq = 1 / ((double)v_p / v_q);
- o = g_malloc0(30 + 1);
-
if (freq > SR_GHZ(1)) {
v = (double)v_p / v_q * 1000000000000.0;
prec = ((v - (uint64_t)v) < FLT_MIN) ? 0 : 3;
- r = snprintf(o, 30, "%.*f ps", prec, v);
+ return g_strdup_printf("%.*f ps", prec, v);
} else if (freq > SR_MHZ(1)) {
v = (double)v_p / v_q * 1000000000.0;
prec = ((v - (uint64_t)v) < FLT_MIN) ? 0 : 3;
- r = snprintf(o, 30, "%.*f ns", prec, v);
+ return g_strdup_printf("%.*f ns", prec, v);
} else if (freq > SR_KHZ(1)) {
v = (double)v_p / v_q * 1000000.0;
prec = ((v - (uint64_t)v) < FLT_MIN) ? 0 : 3;
- r = snprintf(o, 30, "%.*f us", prec, v);
+ return g_strdup_printf("%.*f us", prec, v);
} else if (freq > 1) {
v = (double)v_p / v_q * 1000.0;
prec = ((v - (uint64_t)v) < FLT_MIN) ? 0 : 3;
- r = snprintf(o, 30, "%.*f ms", prec, v);
+ return g_strdup_printf("%.*f ms", prec, v);
} else {
v = (double)v_p / v_q;
prec = ((v - (uint64_t)v) < FLT_MIN) ? 0 : 3;
- r = snprintf(o, 30, "%.*f s", prec, v);
- }
-
- if (r < 0) {
- /* Something went wrong... */
- g_free(o);
- return NULL;
+ return g_strdup_printf("%.*f s", prec, v);
}
-
- return o;
}
/**
*/
SR_API char *sr_voltage_string(uint64_t v_p, uint64_t v_q)
{
- int r;
- char *o;
-
- o = g_malloc0(30 + 1);
-
if (v_q == 1000)
- r = snprintf(o, 30, "%" PRIu64 "mV", v_p);
+ return g_strdup_printf("%" PRIu64 "mV", v_p);
else if (v_q == 1)
- r = snprintf(o, 30, "%" PRIu64 "V", v_p);
+ return g_strdup_printf("%" PRIu64 "V", v_p);
else
- r = snprintf(o, 30, "%gV", (float)v_p / (float)v_q);
-
- if (r < 0) {
- /* Something went wrong... */
- g_free(o);
- return NULL;
- }
-
- return o;
+ return g_strdup_printf("%gV", (float)v_p / (float)v_q);
}
/**
/** @since 0.1.0 */
SR_API gboolean sr_parse_boolstring(const char *boolstr)
{
- if (!boolstr)
- return FALSE;
+ /*
+ * Complete absence of an input spec is assumed to mean TRUE,
+ * as in command line option strings like this:
+ * ...:samplerate=100k:header:numchannels=4:...
+ */
+ if (!boolstr || !*boolstr)
+ return TRUE;
if (!g_ascii_strncasecmp(boolstr, "true", 4) ||
!g_ascii_strncasecmp(boolstr, "yes", 3) ||