Question

NSString *query =  [[NSString alloc] initWithFormat:@"SELECT * FROM objects ", catIdS];
sqlite3_stmt *statement;
    if (sqlite3_prepare_v2(database, [query UTF8String], -1, &statement, nil) == SQLITE_OK) {
        while (sqlite3_step(statement) == SQLITE_ROW) {
            char *nameChar = sqlite3_column_text(statement, 1);

            NSString *title = [[NSString alloc] initWithUTF8String:nameChar];
       }

       sqlite3_finalize(statement);
    }

Semantic issue “initializing char * with an expression of type const char discards qualifiers” in line char *nameChar = sqlite3_column_text(statement, 1)

if change char *nameChar to char *nameChar
Semantic issue “Sending unsigned char * to parameter of type const char *” converts between pointers to integer types with different sign

Answer 1

Casting it should solve your problem.

char *nameChar = (char *)sqlite3_column_text(statement, 1);

or

const unsigned char *nameChar = sqlite3_column_text(statement, 1);

Please look at the method’s signature,

SQLITE_API const unsigned char *sqlite3_column_text(sqlite3_stmt*, int iCol);