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shared/strbuf: add nm_str_buf_get_char() and nm_str_buf_get_str_at_unsafe() helpers

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Thomas Haller 2020-11-05 14:00:46 +01:00
parent a3aa3725e5
commit 336270edd5
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GPG key ID: 29C2366E4DFC5728
1 changed files with 26 additions and 1 deletions
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27
shared/nm-glib-aux/nm-str-buf.h
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@ -31,7 +31,7 @@ typedef struct _NMStrBuf {
/*****************************************************************************/
static inline void
_nm_str_buf_assert(NMStrBuf *strbuf)
_nm_str_buf_assert(const NMStrBuf *strbuf)
{
nm_assert(strbuf);
nm_assert((!!strbuf->_priv_str) == (strbuf->_priv_allocated > 0));
@ -361,6 +361,31 @@ nm_str_buf_get_str_unsafe(NMStrBuf *strbuf)
return strbuf->_priv_str;
}
static inline char *
nm_str_buf_get_str_at_unsafe(NMStrBuf *strbuf, gsize index)
{
_nm_str_buf_assert(strbuf);
/* it is acceptable to ask for a pointer at the end of the buffer -- even
* if there is no data there. The caller is anyway required to take care
* of the length (that's the "unsafe" part), and in that case, the length
* is merely zero. */
nm_assert(index <= strbuf->allocated);
if (!strbuf->_priv_str)
return NULL;
return &strbuf->_priv_str[index];
}
static inline char
nm_str_buf_get_char(const NMStrBuf *strbuf, gsize index)
{
_nm_str_buf_assert(strbuf);
nm_assert(index < strbuf->allocated);
return strbuf->_priv_str[index];
}
/**
* nm_str_buf_finalize:
* @strbuf: an initilized #NMStrBuf