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Fix libpng compilation warning (#757)

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According to the reported issue this warning appears when using
gcc 13.1.0 (rev7, MinGW-W64).

it's very likely a new warning and a false positive because the
buffer is used as an output parameter, but anyway.
This commit is contained in:
Albrecht Schlosser
2023-07-19 13:48:43 +02:00
parent d331a697ed
commit 1e890ea4e4
1 changed files with 2 additions and 2 deletions
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png/pngerror.c
+2 -2
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@@ -255,7 +255,7 @@ void
png_warning_parameter_unsigned(png_warning_parameters p, int number, int format, png_warning_parameter_unsigned(png_warning_parameters p, int number, int format,
png_alloc_size_t value) png_alloc_size_t value)
{ {
char buffer[PNG_NUMBER_BUFFER_SIZE]; char buffer[PNG_NUMBER_BUFFER_SIZE] = {0}; /* FLTK Issue #757 */
png_warning_parameter(p, number, PNG_FORMAT_NUMBER(buffer, format, value)); png_warning_parameter(p, number, PNG_FORMAT_NUMBER(buffer, format, value));
} }
@@ -265,7 +265,7 @@ png_warning_parameter_signed(png_warning_parameters p, int number, int format,
{ {
png_alloc_size_t u; png_alloc_size_t u;
png_charp str; png_charp str;
char buffer[PNG_NUMBER_BUFFER_SIZE]; char buffer[PNG_NUMBER_BUFFER_SIZE] = {0}; /* FLTK Issue #757 */
/* Avoid overflow by doing the negate in a png_alloc_size_t: */ /* Avoid overflow by doing the negate in a png_alloc_size_t: */
u = (png_alloc_size_t)value; u = (png_alloc_size_t)value;