Compilare: main.cpp: In function 'void init()': main.cpp:19:17: warning: array subscript has type 'char' [-Wchar-subscripts] alphaTable[c] = c - 'a' + 1; ^ main.cpp: In function 'int encode(char)': main.cpp:23:22: warning: array subscript has type 'char' [-Wchar-subscripts] return alphaTable[c]; ^ main.cpp: In function 'bool bitReverse(bitset&, complex*, unsigned int, unsigned int)': main.cpp:192:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'unsigned int solve(bitset&, complex*, complex*, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int)': main.cpp:212:69: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] noMatches += (((int)(fftPattern[i + length - 1].a + 0.5)) << 1) == constPattern + getSum(i, length); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~