Fix multiple long-standing bugs, improve test suite.
diff --git a/awk.h b/awk.h
index a36cdb1..70097b9 100644
--- a/awk.h
+++ b/awk.h
@@ -81,7 +81,8 @@
char *nval; /* name, for variables only */
char *sval; /* string value */
Awkfloat fval; /* value as number */
- int tval; /* type info: STR|NUM|ARR|FCN|FLD|CON|DONTFREE */
+ int tval; /* type info: STR|NUM|ARR|FCN|FLD|CON|DONTFREE|CONVC|CONVO */
+ char *fmt; /* CONVFMT/OFMT value used to convert from number */
struct Cell *cnext; /* ptr to next if chained */
} Cell;
@@ -109,6 +110,8 @@
#define FCN 040 /* this is a function name */
#define FLD 0100 /* this is a field $1, $2, ... */
#define REC 0200 /* this is $0 */
+#define CONVC 0400 /* string was converted from number via CONVFMT */
+#define CONVO 01000 /* string was converted from number via OFMT */
/* function types */