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Silence most -Wzero-as-null-pointer-constant diagnostics

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Replace 0 by NULL and {0} by {}.

Omit a few cases that aren't so trivial to fix.

Link: <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117059>
Link: <https://software.codidact.com/posts/292718/292759#answer-292759>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
This commit is contained in:
Alejandro Colomar
2024-11-16 16:51:31 +01:00
committed by Adhemerval Zanella
parent 83d4b42ded
commit 53fcdf5f74
97 changed files with 263 additions and 262 deletions
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14
support/blob_repeat.c
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@@ -92,7 +92,7 @@ allocate_malloc (size_t total_size, const void *element, size_t element_size,
{
void *buffer = malloc (total_size);
if (buffer == NULL)
return (struct support_blob_repeat) { 0 };
return (struct support_blob_repeat) {};
fill (buffer, element, element_size, count);
return (struct support_blob_repeat)
{
@@ -136,7 +136,7 @@ allocate_big (size_t total_size, const void *element, size_t element_size,
if (stride_size == 0)
{
errno = EOVERFLOW;
return (struct support_blob_repeat) { 0 };
return (struct support_blob_repeat) {};
}
/* Ensure that the stride size is at least maximum_small_size. This
@@ -154,7 +154,7 @@ allocate_big (size_t total_size, const void *element, size_t element_size,
void *target = mmap (NULL, total_size, PROT_NONE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
if (target == MAP_FAILED)
return (struct support_blob_repeat) { 0 };
return (struct support_blob_repeat) {};
/* Create the backing file for the repeated mapping. Call mkstemp
directly to remove the resources backing the temporary file
@@ -191,7 +191,7 @@ allocate_big (size_t total_size, const void *element, size_t element_size,
xmunmap (target, total_size);
xclose (fd);
errno = saved_errno;
return (struct support_blob_repeat) { 0 };
return (struct support_blob_repeat) {};
}
if (ptr != target)
FAIL_EXIT1 ("mapping of %zu bytes moved from %p to %p",
@@ -235,7 +235,7 @@ allocate_big (size_t total_size, const void *element, size_t element_size,
xmunmap (target, total_size);
xclose (fd);
errno = saved_errno;
return (struct support_blob_repeat) { 0 };
return (struct support_blob_repeat) {};
}
if (ptr != current)
FAIL_EXIT1 ("MAP_PRIVATE mapping of %zu bytes moved from %p to %p",
@@ -263,7 +263,7 @@ repeat_allocate (const void *element, size_t element_size,
if (__builtin_mul_overflow (element_size, count, &total_size))
{
errno = EOVERFLOW;
return (struct support_blob_repeat) { 0 };
return (struct support_blob_repeat) {};
}
if (total_size <= maximum_small_size)
return allocate_malloc (total_size, element, element_size, count);
@@ -297,5 +297,5 @@ support_blob_repeat_free (struct support_blob_repeat *blob)
xmunmap (blob->start, blob->size);
errno = saved_errno;
}
*blob = (struct support_blob_repeat) { 0 };
*blob = (struct support_blob_repeat) {};
}