Compilare: main.cpp: In function 'int main()': main.cpp:96:20: warning: narrowing conversion of 'n' from 'int' to 'char' inside { } [-Wnarrowing] c[1] = {1,1,n,n}; ^ main.cpp:96:20: warning: narrowing conversion of 'n' from 'int' to 'char' inside { } [-Wnarrowing] main.cpp:112:28: warning: narrowing conversion of '(x + 1)' from 'int' to 'char' inside { } [-Wnarrowing] c[++u] = {x+1,y,x2,y2}; ~^~ main.cpp:112:38: warning: narrowing conversion of 'y' from 'int' to 'char' inside { } [-Wnarrowing] c[++u] = {x+1,y,x2,y2}; ^ main.cpp:112:38: warning: narrowing conversion of 'x2' from 'int' to 'char' inside { } [-Wnarrowing] main.cpp:112:38: warning: narrowing conversion of 'y2' from 'int' to 'char' inside { } [-Wnarrowing] main.cpp:126:38: warning: narrowing conversion of 'x' from 'int' to 'char' inside { } [-Wnarrowing] c[++u] = {x,y+1,x2,y2}; ^ main.cpp:126:30: warning: narrowing conversion of '(y + 1)' from 'int' to 'char' inside { } [-Wnarrowing] c[++u] = {x,y+1,x2,y2}; ~^~ main.cpp:126:38: warning: narrowing conversion of 'x2' from 'int' to 'char' inside { } [-Wnarrowing] c[++u] = {x,y+1,x2,y2}; ^ main.cpp:126:38: warning: narrowing conversion of 'y2' from 'int' to 'char' inside { } [-Wnarrowing] main.cpp:140:38: warning: narrowing conversion of 'x' from 'int' to 'char' inside { } [-Wnarrowing] c[++u] = {x,y,x2-1,y2}; ^ main.cpp:140:38: warning: narrowing conversion of 'y' from 'int' to 'char' inside { } [-Wnarrowing] main.cpp:140:33: warning: narrowing conversion of '(x2 - 1)' from 'int' to 'char' inside { } [-Wnarrowing] c[++u] = {x,y,x2-1,y2}; ~~^~ main.cpp:140:38: warning: narrowing conversion of 'y2' from 'int' to 'char' inside { } [-Wnarrowing] c[++u] = {x,y,x2-1,y2}; ^ main.cpp:154:38: warning: narrowing conversion of 'x' from 'int' to 'char' inside { } [-Wnarrowing] c[++u] = {x,y,x2,y2-1}; ^ main.cpp:154:38: warning: narrowing conversion of 'y' from 'int' to 'char' inside { } [-Wnarrowing] main.cpp:154:38: warning: narrowing conversion of 'x2' from 'int' to 'char' inside { } [-Wnarrowing] main.cpp:154:36: warning: narrowing conversion of '(y2 - 1)' from 'int' to 'char' inside { } [-Wnarrowing] c[++u] = {x,y,x2,y2-1}; ~~^~ main.cpp: In member function 'char InParser::read_ch()': main.cpp:16:29: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, 4096, fin); ^