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Use NULL for pointers only.

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* src/bdf/bdflib.c (*): Code changes.
* include/freetype/freetype.h: Comments only.
* src/cff/cffload.c, src/cff/cffobjs.c: Ditto.
* src/winfonts/winfnt.c: Ditto.
This commit is contained in:
Alexei Podtelezhnikov 2021-09-23 23:10:26 -04:00
parent 6d19b29fbc
commit a29e020059
5 changed files with 29 additions and 29 deletions
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4
include/freetype/freetype.h
View File

@ -2100,7 +2100,7 @@ FT_BEGIN_HEADER
*
* pathname ::
* A pointer to an 8-bit file pathname, which must be a C~string (i.e.,
* no NULL bytes except at the very end). The pointer is not owned by
* no null bytes except at the very end). The pointer is not owned by
* FreeType.
*
* stream ::
@ -2189,7 +2189,7 @@ FT_BEGIN_HEADER
* @note:
* The `pathname` string should be recognizable as such by a standard
* `fopen` call on your system; in particular, this means that `pathname`
* must not contain NULL bytes. If that is not sufficient to address all
* must not contain null bytes. If that is not sufficient to address all
* file name possibilities (for example, to handle wide character file
* names on Windows in UTF-16 encoding) you might use @FT_Open_Face to
* pass a memory array or a stream object instead.

46
src/bdf/bdflib.c
View File

@ -170,7 +170,7 @@
/* An auxiliary macro to parse properties, to be used in conditionals. */
/* It behaves like `strncmp' but also tests the following character */
/* whether it is a whitespace or NULL. */
/* whether it is a whitespace or null. */
/* `property' is a constant string of length `n' to compare with. */
#define _bdf_strncmp( name, property, n ) \
( ft_strncmp( name, property, n ) || \
@ -346,7 +346,7 @@
unsigned long i, u;
if ( list == 0 || list->used == 0 || n == 0 )
if ( list == NULL || list->used == 0 || n == 0 )
return;
if ( n >= list->used )
@ -377,7 +377,7 @@
*alen = 0;
if ( list == 0 || list->used == 0 )
if ( list == NULL || list->used == 0 )
return 0;
dp = list->field[0];
@ -436,7 +436,7 @@
/* In the original code, if the `separators' parameter is NULL or */
/* empty, the list is split into individual bytes. We don't need */
/* this, so an error is signaled. */
if ( separators == 0 || *separators == 0 )
if ( separators == NULL || *separators == 0 )
{
error = FT_THROW( Invalid_Argument );
goto Exit;
@ -504,7 +504,7 @@
if ( final_empty )
list->field[list->used++] = (char*)empty;
list->field[list->used] = 0;
list->field[list->used] = NULL;
Exit:
return error;
@ -529,7 +529,7 @@
FT_Error error = FT_Err_Ok;
if ( callback == 0 )
if ( callback == NULL )
{
error = FT_THROW( Invalid_Argument );
goto Exit;
@ -697,7 +697,7 @@
unsigned long v;
if ( s == 0 || *s == 0 )
if ( s == NULL || *s == 0 )
return 0;
for ( v = 0; sbitset( ddigits, *s ); s++ )
@ -722,7 +722,7 @@
long v, neg;
if ( s == 0 || *s == 0 )
if ( s == NULL || *s == 0 )
return 0;
/* Check for a minus sign. */
@ -755,7 +755,7 @@
unsigned short v;
if ( s == 0 || *s == 0 )
if ( s == NULL || *s == 0 )
return 0;
for ( v = 0; sbitset( ddigits, *s ); s++ )
@ -780,7 +780,7 @@
short v, neg;
if ( s == 0 || *s == 0 )
if ( s == NULL || *s == 0 )
return 0;
/* Check for a minus. */
@ -883,7 +883,7 @@
size_t* propid;
if ( name == 0 || *name == 0 )
if ( name == NULL || *name == 0 )
return 0;
if ( ( propid = ft_hash_str_lookup( name, &(font->proptbl) ) ) == NULL )
@ -974,7 +974,7 @@
FT_UNUSED( lineno ); /* only used in debug mode */
if ( font == 0 || font->name == 0 || font->name[0] == 0 )
if ( font == NULL || font->name == NULL || font->name[0] == 0 )
{
error = FT_THROW( Invalid_Argument );
goto Exit;
@ -1182,7 +1182,7 @@
{
case BDF_ATOM:
fp->value.atom = 0;
if ( value != 0 && value[0] )
if ( value && value[0] )
{
if ( FT_STRDUP( fp->value.atom, value ) )
goto Exit;
@ -1496,7 +1496,7 @@
{
/* Unencoded glyph. Check whether it should */
/* be added or not. */
if ( p->opts->keep_unencoded != 0 )
if ( p->opts->keep_unencoded )
{
/* Allocate the next unencoded glyph. */
if ( font->unencoded_used == font->unencoded_size )
@ -1677,7 +1677,7 @@
/* If the BDF_CORRECT_METRICS flag is set, then adjust the SWIDTH */
/* value if necessary. */
if ( p->opts->correct_metrics != 0 )
if ( p->opts->correct_metrics )
{
/* Determine the point size of the glyph. */
unsigned short sw = (unsigned short)FT_MulDiv(
@ -1884,7 +1884,7 @@
/* comments before the STARTFONT line for some reason. */
if ( _bdf_strncmp( line, "COMMENT", 7 ) == 0 )
{
if ( p->opts->keep_comments != 0 && p->font != 0 )
if ( p->opts->keep_comments && p->font )
{
linelen -= 7;
@ -1917,7 +1917,7 @@
}
p->flags = BDF_START_;
font = p->font = 0;
font = p->font = NULL;
if ( FT_NEW( font ) )
goto Exit;
@ -2176,7 +2176,7 @@
if ( FT_NEW( p ) )
goto Exit;
p->opts = (bdf_options_t*)( ( opts != 0 ) ? opts : &_bdf_opts );
p->opts = (bdf_options_t*)( opts ? opts : &_bdf_opts );
p->minlb = 32767;
p->size = stream->size;
p->memory = memory; /* only during font creation */
@ -2188,7 +2188,7 @@
if ( error )
goto Fail;
if ( p->font != 0 )
if ( p->font )
{
/* If the font is not proportional, set the font's monowidth */
/* field to the width of the font bounding box. */
@ -2269,9 +2269,9 @@
}
}
if ( p->font != 0 )
if ( p->font )
{
/* Make sure the comments are NULL terminated if they exist. */
/* Make sure the comments are null terminated if they exist. */
if ( p->font->comments_len > 0 )
{
if ( FT_QRENEW_ARRAY( p->font->comments,
@ -2316,7 +2316,7 @@
FT_Memory memory;
if ( font == 0 )
if ( font == NULL )
return;
memory = font->memory;
@ -2385,7 +2385,7 @@
size_t* propid;
if ( font == 0 || font->props_size == 0 || name == 0 || *name == 0 )
if ( font == NULL || font->props_size == 0 || name == NULL || *name == 0 )
return 0;
propid = ft_hash_str_lookup( name, (FT_Hash)font->internal );

2
src/cff/cffload.c
View File

@ -400,7 +400,7 @@
/* Allocate a table containing pointers to an index's elements. */
/* The `pool' argument makes this function convert the index */
/* entries to C-style strings (this is, NULL-terminated). */
/* entries to C-style strings (this is, null-terminated). */
static FT_Error
cff_index_get_pointers( CFF_Index idx,
FT_Byte*** table,

4
src/cff/cffobjs.c
View File

@ -689,13 +689,13 @@
/* In Multiple Master CFFs, two SIDs hold the Normalize Design */
/* Vector (NDV) and Convert Design Vector (CDV) charstrings, */
/* which may contain NULL bytes in the middle of the data, too. */
/* which may contain null bytes in the middle of the data, too. */
/* We thus access `cff->strings' directly. */
for ( idx = 1; idx < cff->num_strings; idx++ )
{
FT_Byte* s1 = cff->strings[idx - 1];
FT_Byte* s2 = cff->strings[idx];
FT_PtrDist s1len = s2 - s1 - 1; /* without the final NULL byte */
FT_PtrDist s1len = s2 - s1 - 1; /* without the final null byte */
FT_PtrDist l;

2
src/winfonts/winfnt.c
View File

@ -885,7 +885,7 @@
}
family_size = font->header.file_size - font->header.face_name_offset;
/* Some broken fonts don't delimit the face name with a final */
/* NULL byte -- the frame is erroneously one byte too small. */
/* null byte -- the frame is erroneously one byte too small. */
/* We thus allocate one more byte, setting it explicitly to */
/* zero. */
if ( FT_QALLOC( font->family_name, family_size + 1 ) )