CODEWITHSUNDEEP
cscanf
jacob87
jacob87

Reputation: 1

Scanf not reading first character

I have this, when I put the function in main the input is 'hello' and the output is 'ello'.

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

void getString() {
     char enter;
     printf("Type input below"); 
     scanf("%c", &enter);
     system("cls");
}

void scanString () {
     char target[100];
     scanf("%s", &target);
     printf("%s", target);
}

int main () {
     getString();
     scanString();
}

Upvotes: 0

Views: 738

Answers (3)

Josh
Josh

Reputation: 19

If you omit

scanf("%c", &enter);
system("cls");

and correct your scanf statement for the string like below

scanf("%s", target); /* no need to use & with an array */

your code will work as you expect.

For more help, try my channel on YouTube, "Computing Foundations". I love helping beginners. https://www.youtube.com/channel/UCAZFaacJMNRm3JIn3nNR1cQ

Upvotes: 0

jacob87
jacob87

Reputation: 1

void getTarget () {
     char target[100];
     printf("Type input below and press ENTER");
     scanf("%99s", &target);
}

I moved the call to scanf to the same function where the user enters it so the variable is set when the user presses enter, not after.

Upvotes: 0

ShadowRanger
ShadowRanger

Reputation: 155363

Your getString is explicitly eating a single character from stdin with scanf("%c", &enter) and ignoring it, so the second scanf in scanString doesn't receive that character. From the names used, it seems like you think you're consuming a newline the user already put in stdin, but in fact, the user is not entering a newline, they just enter hello, and you consume and discard the h, clear the screen, then consume and print the ello.

Upvotes: 1

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