New module 'isnan-nolibm'.

[gnulib.git] / lib / striconveh.h

diff --git a/lib/striconveh.h b/lib/striconveh.h
index 2ea7d54..1e833a0 100644 (file)
--- a/lib/striconveh.h
+++ b/lib/striconveh.h
@@ -47,6 +47,10 @@ enum iconv_ilseq_handler
    (iconv_t)(-1) if FROM_CODESET is UTF-8).
    CD2 is the conversion descriptor from UTF-8 to TO_CODESET (or (iconv_t)(-1)
    if TO_CODESET is UTF-8).
+   If OFFSETS is not NULL, it should point to an array of SRCLEN integers; this
+   array is filled with offsets into the result, i.e. the character starting
+   at SRC[i] corresponds to the character starting at (*RESULTP)[OFFSETS[i]],
+   and other offsets are set to (size_t)(-1).
    *RESULTP and *LENGTH should initially be a scratch buffer and its size,
    or *RESULTP can initially be NULL.
    May erase the contents of the memory at *RESULTP.
@@ -58,6 +62,7 @@ extern int
        mem_cd_iconveh (const char *src, size_t srclen,
                       iconv_t cd, iconv_t cd1, iconv_t cd2,
                       enum iconv_ilseq_handler handler,
+                      size_t *offsets,
                       char **resultp, size_t *lengthp);
 
 /* Convert an entire string from one encoding to another, using iconv.
@@ -80,6 +85,26 @@ extern char *
 #endif
 
 /* Convert an entire string from one encoding to another, using iconv.
+   The original string is at [SRC,...,SRC+SRCLEN-1].
+   If OFFSETS is not NULL, it should point to an array of SRCLEN integers; this
+   array is filled with offsets into the result, i.e. the character starting
+   at SRC[i] corresponds to the character starting at (*RESULTP)[OFFSETS[i]],
+   and other offsets are set to (size_t)(-1).
+   *RESULTP and *LENGTH should initially be a scratch buffer and its size,
+   or *RESULTP can initially be NULL.
+   May erase the contents of the memory at *RESULTP.
+   Return value: 0 if successful, otherwise -1 and errno set.
+   If successful: The resulting string is stored in *RESULTP and its length
+   in *LENGTHP.  *RESULTP is set to a freshly allocated memory block, or is
+   unchanged if no dynamic memory allocation was necessary.  */
+extern int
+       mem_iconveh (const char *src, size_t srclen,
+                   const char *from_codeset, const char *to_codeset,
+                   enum iconv_ilseq_handler handler,
+                   size_t *offsets,
+                   char **resultp, size_t *lengthp);
+
+/* Convert an entire string from one encoding to another, using iconv.
    The original string is the NUL-terminated string starting at SRC.
    Both the "from" and the "to" encoding must use a single NUL byte at the
    end of the string (i.e. not UCS-2, UCS-4, UTF-16, UTF-32).