Rewrite various initializations for the benefit of various compilers
Mark the initialization of `png_signature[]` as static const inside the
function `png_sig_cmp`. This might be helpful to optimizing compilers.
Initialize the arrays `number_buf[]`, `digits[]` and `buffer[]` inside
the functions `png_convert_to_rfc1123_buffer`, `png_ascii_from_fixed`,
`png_warning_parameter_unsigned` and `png_warning_parameter_signed`.
Although these initializations are redundant, compilers such as gcc-13
fail to see the redundancy.
2 files changed
