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ZOOM: new setting apdufile
[yaz-moved-to-github.git]
/
include
/
yaz
/
wrbuf.h
diff --git
a/include/yaz/wrbuf.h
b/include/yaz/wrbuf.h
index
e7629d0
..
1d4f83b
100644
(file)
--- a/
include/yaz/wrbuf.h
+++ b/
include/yaz/wrbuf.h
@@
-242,11
+242,20
@@
YAZ_EXPORT int wrbuf_grow(WRBUF b, size_t minsize);
#define wrbuf_buf(b) ((b)->buf)
/** \brief returns WRBUF content as C-string
#define wrbuf_buf(b) ((b)->buf)
/** \brief returns WRBUF content as C-string
- \param b WRBUF
+ \param b WRBUF (may not be NULL)
\returns C-string
*/
YAZ_EXPORT const char *wrbuf_cstr(WRBUF b);
\returns C-string
*/
YAZ_EXPORT const char *wrbuf_cstr(WRBUF b);
+/** \brief returns WRBUF content as C-string or NULL
+ \param b WRBUF
+ \returns C-string or NULL
+
+ This function returns NULL if either b is NULL or length of buffer is 0
+*/
+YAZ_EXPORT
+const char *wrbuf_cstr_null(WRBUF b);
+
#define wrbuf_putc(b, c) \
((void) ((b)->pos >= (b)->size ? wrbuf_grow(b, 1) : 0), \
(b)->buf[(b)->pos++] = (c), 0)
#define wrbuf_putc(b, c) \
((void) ((b)->pos >= (b)->size ? wrbuf_grow(b, 1) : 0), \
(b)->buf[(b)->pos++] = (c), 0)