CODEWITHSUNDEEP
csqlitefunction
user3402727
user3402727

Reputation: 41

C user defined function issues

I am testing sqlite3 with C and I decided to make a simple program that takes a username and password from input in a function and passes it to be inserted into a sqlite3 database table. Problem I have is that whenever I mention the function I wrote anywhere in my code I get an error like this for each mention:

error: expected identifier or ‘(’ before ‘register’
 void *register(const char *u,const char *p)

Here is my code:

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<sqlite3.h>

void register(const char *u,const char *p)
{
 printf("Enter your desired username: \n");
 scanf("%s", u);
 printf("Enter your desired password: \n");
 scanf("%s", p);    
}


int main()
{
const char new_user[50];
const char new_pass[50];
sqlite3 *db;
sqlite3_stmt *stmt;
int rc = sqlite3_open("test.db", &db);
if(rc != SQLITE_OK)
{
    fprintf(stderr, "Problem opening Database: %s\n", sqlite3_errmsg(db));
    return 0;
}


char *sql = "INSERT INTO Users VALUES(?, ?, '0335804828', 'Strada userului nr 9', NULL, 0);";
rc = sqlite3_prepare_v2(db, sql, -1, &stmt, 0);

 if (rc == SQLITE_OK) 
{        
    sqlite3_bind_text(stmt, 1, "blala", -1, SQLITE_STATIC);
    sqlite3_bind_text(stmt, 2, "blabla", -1, SQLITE_STATIC);
} 
else 
{        
        fprintf(stderr, "Failed to execute statement: %s\n", sqlite3_errmsg(db));
    }

return 0;
}

As you can see code is not yet finished but it does not compile because of the mentioned error. I've searched for similar answers but nothing worked in my case. I've tried changing the function and its types but nothing works.

Upvotes: 0

Views: 50

Answers (2)

0___________
0___________

Reputation: 68023

void register(const char *u,const char *p)
{
 printf("Enter your desired username: \n");
 scanf("%s", u);
 printf("Enter your desired password: \n");
 scanf("%s", p);    
}

Two issues. You use register as a function name, but it is the C keyword which cannot be used.

When you change the name your function parameters are wrong. const char *u means that bytes referenced by 'u' are const and cannot be changed.

void foo(char *u,char *p);

or if the pointers do not change

void foo(char * const u,char * const p);

Upvotes: 1

Some programmer dude
Some programmer dude

Reputation: 409472

register is a keyword in C. You can't use keywords for names.

Upvotes: 0

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