fix: csv_write

1 files changed, 12 insertions, 8 deletions

diff --git a/csv.c b/csv.c
index e36e3ba..736c76d 100644
--- a/csv.c
+++ b/csv.c
@@ -458,22 +458,26 @@ csv_write_field(FILE *out, const char *field, const csv_options_t * const csv_op
 }
 
 void
-csv_write(FILE *out, int n, const char *fields[], const csv_options_t * const csv_options)
+csv_write(FILE *out, int n, const char *fields[], const csv_options_t * csv_options)
 {
-        assert(csv_options != NULL);
-        assert(fields != NULL);
         assert(out != NULL);
+        assert(fields != NULL);
+
+        if ( csv_options == NULL ) {
+                csv_options = &csv_default_options;
+        }
 
-        const char SEP = csv_options->quote_symbol;
+        const char SEP = csv_options->sep_symbol;
 
         /* process first field */
-        if ( 0 != n && fields[0] != NULL ) {
-                csv_write_field(out, fields[0], csv_options);
+        if ( 0 != n && *fields != NULL ) {
+                --n;
+                csv_write_field(out, *fields++, csv_options);
 
                 /* process next fields */
-                for ( int i = 1; i != n && fields[i] != NULL; ++i ) {
+                for ( ; n && *fields != NULL; --n, ++fields ) {
                         putc(SEP, out);
-                        csv_write_field(out, fields[i], csv_options);
+                        csv_write_field(out, *fields, csv_options);
                 }
         }
         fprintf(out, "\r\n");