Introduce OutputFlag

[libsigrok.git] / src / strutil.c

diff --git a/src/strutil.c b/src/strutil.c
index 050f37bf7090532cc67282e07c10ce2867a985b6..ae2b7dd3cd55bb20398dc30584186b857c1522da 100644 (file)
--- a/src/strutil.c
+++ b/src/strutil.c
@@ -21,6 +21,7 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
 #include <errno.h>
 #include "libsigrok.h"
 #include "libsigrok-internal.h"
@@ -246,7 +247,7 @@ SR_API char *sr_si_string_u64(uint64_t x, const char *unit)
        const char *p, prefix[] = "\0kMGTPE";
        char fmt[16], fract[20] = "", *f;
 
-       if (unit == NULL)
+       if (!unit)
                unit = "";
 
        for (i = 0; (quot = x / divisor[i]) >= 1000; i++);