dfilter.c:366:2: warning: implicit declaration of function 'byteswap4' is invalid in C99 [-Wimplicit-function-declaration]
byteswap4(mem); /* step 1: byte-swap each piece */
^
dfilter.c:368:2: warning: implicit declaration of function 'byteswap8' is invalid in C99 [-Wimplicit-function-declaration]
byteswap8(mem); /* step 2: convert to little endian format */
^
dfilter.c:370:2: warning: implicit declaration of function 'byteswap8' is invalid in C99 [-Wimplicit-function-declaration]
byteswap8(mem); /* step 1: convert to little endian format */
^
dfilter.c:371:2: warning: implicit declaration of function 'byteswap4' is invalid in C99 [-Wimplicit-function-declaration]
byteswap4(mem); /* step 2: byte-swap each piece */
^
dfilter.c:681:1: error: static declaration of 'byteswap8' follows non-static declaration
byteswap8(unsigned char* mem)
^
dfilter.c:368:2: note: previous implicit declaration is here
byteswap8(mem); /* step 2: convert to little endian format */
^
dfilter.c:700:1: error: static declaration of 'byteswap4' follows non-static declaration
byteswap4(unsigned char* mem)
^
dfilter.c:366:2: note: previous implicit declaration is here
byteswap4(mem); /* step 1: byte-swap each piece */
^
4 warnings and 2 errors generated.
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