{ // const content const char * c; // *(c+1) = 'c'; c = NULL; // const pointer char * const p = NULL; * (p + 1 ) = ' c ' ; // p = NULL; } { // const content, array, such as const char* c0; ...; const char* c99; const char * c[ 100 ]; c[ 0 ] = NULL; // *c[ 0 ] = 'c'; // const pointer, array, such as char* const p0; ...; char* const p99; char * const p[ 100 ] = { NULL, NULL }; // p[ 0 ] = NULL; * p[ 0 ] = ' c ' ; }