Use macro for isdigit

Arto Kinnunen · Arto Kinnunen · commit 69720f106865 · 2020-09-02T15:15:45.000+03:00
diff --git a/features/nanostack/nanostack-interface/Nanostack.cpp b/features/nanostack/nanostack-interface/Nanostack.cpp
@@ -44,6 +44,8 @@
 #define TRACE_DEEP(...)
 #endif
 
+#define NANOSTACK_ISDIGIT(c)    ((c) >= '0' && (c) <= '9')
+
 #define NS_INTERFACE_SOCKETS_MAX  16  //same as NanoStack SOCKET_MAX
 
 #define MALLOC  ns_dyn_mem_alloc
@@ -175,7 +177,7 @@ static int8_t nanostack_interface_id_parse(const char *interface_name)
         return -1;
     }
 
-    if ((strncmp("MES", interface_name, 3) == 0) && isdigit(interface_name[3])) {
+    if ((strncmp("MES", interface_name, 3) == 0) && NANOSTACK_ISDIGIT(interface_name[3])) {
         interface_id = atoi(&interface_name[3]);
     }
 

Original file line number	Diff line number	Diff line change
`@@ -44,6 +44,8 @@`
`44`	`44`	`#define TRACE_DEEP(...)`
`45`	`45`	`#endif`
`46`	`46`
	`47`	`+#define NANOSTACK_ISDIGIT(c) ((c) >= '0' && (c) <= '9')`
	`48`	`+`
`47`	`49`	`#define NS_INTERFACE_SOCKETS_MAX 16 //same as NanoStack SOCKET_MAX`
`48`	`50`
`49`	`51`	`#define MALLOC ns_dyn_mem_alloc`
`@@ -175,7 +177,7 @@ static int8_t nanostack_interface_id_parse(const char *interface_name)`
`175`	`177`	`return -1;`
`176`	`178`	`}`
`177`	`179`
`178`		`- if ((strncmp("MES", interface_name, 3) == 0) && isdigit(interface_name[3])) {`
	`180`	`+ if ((strncmp("MES", interface_name, 3) == 0) && NANOSTACK_ISDIGIT(interface_name[3])) {`
`179`	`181`	`interface_id = atoi(&interface_name[3]);`
`180`	`182`	`}`
`181`	`183`