Compilare: user.c: In function ‘main’: user.c:56:17: warning: implicit declaration of function ‘strndup’ [-Wimplicit-function-declaration] p[pair_index++].key = strndup( line + prev, position - prev ); ^ user.c:56:37: warning: assignment makes pointer from integer without a cast [enabled by default] p[pair_index++].key = strndup( line + prev, position - prev ); ^ user.c:70:37: warning: assignment makes pointer from integer without a cast [enabled by default] p[pair_index++].key = strndup( line + prev, position - prev ); ^ user.c:90:43: warning: assignment makes pointer from integer without a cast [enabled by default] p[ pair_index - 1 ].value = strndup( line + prev, position - prev ); ^ user.c:98:43: warning: assignment makes pointer from integer without a cast [enabled by default] p[ pair_index - 1 ].value = strndup( line + prev, position - prev ); ^