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util.ringbuffer: Ensure unsigned chars are always returned from :byte()

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This commit is contained in:
Matthew Wild 2020-06-24 12:34:20 +01:00
parent f7614d491a
commit b9a670dace
2 changed files with 10 additions and 3 deletions
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6
util-src/ringbuffer.c
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@ -262,15 +262,15 @@ static int rb_byte(lua_State *L) {
if(calc_splice_positions(b, start, end, &wrapped_start, &wrapped_end)) {
if(wrapped_end <= wrapped_start) {
for(i = wrapped_start; i < (long)b->alen; i++) {
lua_pushinteger(L, b->buffer[i]);
lua_pushinteger(L, (unsigned char)b->buffer[i]);
}
for(i = 0; i < wrapped_end; i++) {
lua_pushinteger(L, b->buffer[i]);
lua_pushinteger(L, (unsigned char)b->buffer[i]);
}
return wrapped_end + (b->alen - wrapped_start);
} else {
for(i = wrapped_start; i < wrapped_end; i++) {
lua_pushinteger(L, b->buffer[i]);
lua_pushinteger(L, (unsigned char)b->buffer[i]);
}
return wrapped_end - wrapped_start;
}