Read values into an array fails - c

Question

I want to use a function to scanf up to 10 values for an array with the size 10, and also keep track of the number of values that are in the array because I'll need it later for solving some maths about the array, (max value, min value, etc.).
#include <stdio.h>
int enter(int MeasurmentData[], int nrOfmeasurments)
{
for(int i=0;i<10;++i)
{
int MeasurmentData[10];
scanf("%d",&MeasurmentData[i]);
int nrOfmeasurments = 0;
nrOfmeasurments ++;
return nrOfmeasurments;
}
int main()
{
int MeasurmentData[10];
int nrOfmeasurments;
char menuoption;
while (1)
{
printf("Measurment tool 2.0\n");
printf("v (View)\n");
printf("e (Enter)\n");
printf("c (Compute)\n");
printf("r (Reset)\n");
printf("q (Quit)\n");
printf("enter your option:\n");
scanf(" %c", &menuoption);
if (menuoption =='e') \\ enter values
{
int MeasurmentData[10];
int nrOfmeasurments;
enter(MeasurmentData, nrOfmeasurments);
}
else if(menuoption == 'v') \\\ view values
{
//printf("%d", MeasurmentData[]);
}
else if(menuoption == 'c')
{
}
if(menuoption == 'q')
{
printf("Exiting Measurment tool 2.0\n");
return 0;
}
}
}
When I run the program it should print Measurment tool 2.0, after the the user has the choice of inputting e(enter) which will scan in up to 10 values into an array, if the user clicks q(quit) while in the enter option already he will be returned to the main menu where he can do whatever.
V(view) prints out the array for the user so that he can view what elements are inside.
C(compute) uses the elements inside and the nr of elements to calculate the highest value element, lowest.

Answer 1

There are some errors in your code. Ill try to explain. You have over declared your variables too many times. And since you have a fixed loop you don't need to count the measurements you will always read 10 measurements.
Below are the code with some modifications. Feel free to ask anything about it.
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define MAXIMUM_MEASURMENT 10
int enter(int MeasurmentData[])
{
char input[100];
int nrMeasurement = 0;
// reseting Measurment data
for(int i=0;i<MAXIMUM_MEASURMENT;++i) MeasurmentData[i] = 0;
for(int i=0;i<MAXIMUM_MEASURMENT;++i)
{
scanf("%99s", input);
if(strcmp(input, "q") == 0) {
break;
}
MeasurmentData[i] = (int) strtol(input, (char **)NULL, 10);
nrMeasurement++;
}
return nrMeasurement;
}
void showMeasurments(int* MeasurmentData, int length) {
int i = 0;
printf(" ======== Measurment ======== \n");
for(i = 0; i < length; i++) {
printf("%d ", MeasurmentData[i]);
}
printf("\n");
}
int main()
{
int MeasurmentData[MAXIMUM_MEASURMENT];
int nrOfmeasurments;
char menuoption;
while (1)
{
printf("Measurment tool 2.0\n" "v (View)\n" "e (Enter)\n" "c (Compute)\n" "r (Reset)\n" "q (Quit)\n enter your option:\n");
scanf(" %c", &menuoption);
if (menuoption =='e') // enter values
{
enter(MeasurmentData);
}
else if(menuoption == 'v') // view values
{
// show
showMeasurments(MeasurmentData, MAXIMUM_MEASURMENT);
}
else if(menuoption == 'c')
{
}
if(menuoption == 'q')
{
printf("Exiting Measurment tool 2.0\n");
break;
}
}
return 0;
}
Edit: i have updated the code. So i have read the comments of your question and there you have explained a little better what you are trying to accomplish. So since you have the requirement to press 'q' to stop reading values. I have to read all measurments as string and convert to integer if it is not the character q.
Edit 2: Thanks to #user3629249 to point out some of the flaws from the code ill update with his suggestions.