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authorNRK <nrk@disroot.org>2022-03-18 17:03:34 +0600
committerHiltjo Posthuma <hiltjo@codemadness.org>2022-03-18 12:20:27 +0100
commitef0551932fb162f907b40185d2f48c3b497708ee (patch)
tree7051a47cfe413c345ca707d3550be21e00081556 /x.o%252525252525252525252525252525253fid%252525252525252525252525252525253d83168f5447ed5465b06673052aa8c6c8e3c40e38%2525252525252525252525252525253fid%2525252525252525252525252525253d83168f5447ed5465b06673052aa8c6c8e3c40e38&id2%2525252525252525252525252525253d9846a56bd7fdc86bf788db04bbbcbde7b7eb9952%25252525252525252525252525253fid%25252525252525252525252525253d83168f5447ed5465b06673052aa8c6c8e3c40e38%252525252525252525252525253fid%252525252525252525252525253d83168f5447ed5465b06673052aa8c6c8e3c40e38%2525252525252525252525253fid%2525252525252525252525253d83168f5447ed5465b06673052aa8c6c8e3c40e38&id2%2525252525252525252525253d9846a56bd7fdc86bf788db04bbbcbde7b7eb9952%25252525252525252525253fid%25252525252525252525253d83168f5447ed5465b06673052aa8c6c8e3c40e38%252525252525252525253fid%252525252525252525253d83168f5447ed5465b06673052aa8c6c8e3c40e38%2525252525252525253fid%2525252525252525253da8fbe5f5021f1951a6342663e5bb4e845dd08104%25252525252525253fid%25252525252525253dd9e6811d41e0ff5741e2f719c356af760b931f7b%252525252525253fid%252525252525253d6bc9bf97bcc0b53d84d0e73c1dfb74c644f5d7bd%2525252525253fid%2525252525253d6bc9bf97bcc0b53d84d0e73c1dfb74c644f5d7bd%25252525253fid%25252525253d6bc9bf97bcc0b53d84d0e73c1dfb74c644f5d7bd%252525253fid%252525253d8ca98e929725c8c8577789be80536adb24d5569f%2525253fid%2525253ddd0c22024f9732c2d8d0153f45440f7bedb20742%25253fid%25253dbaa9357e96d2478baa52a3301e70ac80a229b726%253fid%253dbaa9357e96d2478baa52a3301e70ac80a229b726%3fid%3d8629d9a1da72cc18568a8f146307b0e939b77ebf?id=ef0551932fb162f907b40185d2f48c3b497708ee
parentaf3bb68add1c40d19d0dee382009e21b0870a38f (diff)
base64_digits: reduce scope, implicit zero, +1 size
the array is not accessed outside of base64dec() so it makes sense to limit it's scope to the related function. the static-storage duration of the array is kept intact. this also removes unnecessary explicit zeroing from the start and end of the array. anything that wasn't explicitly zero-ed will now be implicitly zero-ed instead. the validity of the new array can be easily confirmed via running this trivial loop: for (int i = 0; i < 255; ++i) assert(base64_digits[i] == base64_digits_old[i]); lastly, as pointed out by Roberto, the array needs to have 256 elements in order to able access it as any unsigned char as an index; the previous array had 255. however, this array will only be accessed at indexes which are isprint() || '=' (see `base64dec_getc()`), so reducing the size of the array to the highest printable ascii char (127 AFAIK) + 1 might also be a valid strategy.
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