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15 lines
443 B
15 lines
443 B
#include "byte.h" |
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/* byte_copyr copies in[len-1] to out[len-1], in[len-2] to out[len-2], |
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* ... and in[0] to out[0] */ |
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void byte_copyr(void* out, unsigned int len, const void* in) { |
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register char* s=out+len; |
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register const char* t=in; |
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register const char* u=t+len; |
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for (;;) { |
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if (t>=u) break; --u; --s; *s=*u; |
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if (t>=u) break; --u; --s; *s=*u; |
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if (t>=u) break; --u; --s; *s=*u; |
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if (t>=u) break; --u; --s; *s=*u; |
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} |
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}
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