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-rw-r--r--unproto/vstring.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/unproto/vstring.h b/unproto/vstring.h
new file mode 100644
index 0000000..c2e1f88
--- /dev/null
+++ b/unproto/vstring.h
@@ -0,0 +1,15 @@
+/* @(#) vstring.h 1.2 92/01/15 21:53:19 */
+
+struct vstring {
+ char *str; /* string value */
+ char *last; /* last position */
+};
+
+extern struct vstring *vs_alloc(); /* initial allocation */
+extern char *vs_realloc(); /* string extension */
+extern char *vs_strcpy(); /* copy string */
+
+/* macro to add one character to auto-resized string */
+
+#define VS_ADDCH(vs,wp,c) \
+ ((wp < (vs)->last || (wp = vs_realloc(vs,wp))) ? (*wp++ = c) : 0)