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string: Split g_string_maybe_expand

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Split off g_string_expand, and inline just
the size check.
This commit is contained in:
Matthias Clasen 2023-01-13 22:19:55 -05:00
parent e9fc91550f
commit 34b7992fd6
1 changed files with 19 additions and 12 deletions
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17
glib/gstring.c
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@ -75,22 +75,29 @@
*/
static void
g_string_maybe_expand (GString *string,
g_string_expand (GString *string,
gsize len)
{
/* Detect potential overflow */
if G_UNLIKELY ((G_MAXSIZE - string->len - 1) < len)
g_error ("adding %" G_GSIZE_FORMAT " to string would overflow", len);
if (string->len + len >= string->allocated_len)
{
string->allocated_len = g_nearest_pow (string->len + len + 1);
/* If the new size is bigger than G_MAXSIZE / 2, only allocate enough
* memory for this string and don't over-allocate. */
* memory for this string and don't over-allocate.
*/
if (string->allocated_len == 0)
string->allocated_len = string->len + len + 1;
string->str = g_realloc (string->str, string->allocated_len);
}
static inline void
g_string_maybe_expand (GString *string,
gsize len)
{
if (G_UNLIKELY (string->len + len >= string->allocated_len))
g_string_expand (string, len);
}
/**
@ -113,7 +120,7 @@ g_string_sized_new (gsize dfl_size)
string->len = 0;
string->str = NULL;
g_string_maybe_expand (string, MAX (dfl_size, 64));
g_string_expand (string, MAX (dfl_size, 64));
string->str[0] = 0;
return string;