add function to parse array of floats from json

1 files changed, 29 insertions, 0 deletions

diff --git a/redist/json_helpers.c b/redist/json_helpers.c
index c52301d..af7ddda 100644
--- a/redist/json_helpers.c
+++ b/redist/json_helpers.c
@@ -216,3 +216,32 @@ void json_load_file(const char* path) {
 	free(JSON_STRING);
 }
 
+int parse_float_array(char* str, jsmntok_t* token, FLT** f, uint8_t count) {
+	uint16_t i = 0;
+
+	if (count==0) return 0;
+
+	if (*f!=NULL) free(*f);
+	*f = malloc(sizeof(FLT) * count);
+
+	for(i=0;i<count;++i) {
+		char* end = str + token->end;
+		char* s = str+token->start;
+
+		#ifdef USE_DOUBLE
+		(*f)[i] = strtod(s, &end);
+		#else
+		(*f)[i] = strtof(s, &end);
+		#endif
+
+		if (s == end) {
+			free(*f);
+			*f=NULL;
+			return 0; //not a float
+		}
+		token++;
+	}
+
+
+	return count;
+}
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