append to text file

Attachment 12068

Code:

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


int main()
{
        FILE *fpstream;
        char ch[50];
       
        printf("Input: ");
        scanf("%[^\n]", ch);


        if ( (fpstream = fopen("sales.txt","a") ) == NULL)
                printf("Cannot open sales.txt file.");
        else{
                fputs(ch,fpstream);
                fclose(fpstream);
        }
        printf("\n");
        system("pause");
        return 0;
}

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How to append string to newline instead of last line?

Huh? Just output the newline with your data.

Code:

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            fputc('\n', fpstream);
            fpust(ch, fpstream);

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Note: the variable named ch invokes a single character rather than a string. Using it with the meaning of string may become troublesome in the future when you review your code (and don't remember most if it)

Make sure you always close every file stream you open. If you dont, the OS will do it for you, but it is good practice to close it

bluechip: there is an fclose call in the code posted.

Quote:

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Originally Posted by bluechip

Make sure you always close every file stream you open. If you dont, the OS will do it for you, but it is good practice to close it

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It's not the OS that does it, but the C library's exit code.