C Exercises: Convert a string to an integer
C Variable Type : Exercise-13 with Solution
Write a C program to convert a string to an integer.
Sample Solution:
C Code:
#include<stdio.h>
#include<stdlib.h>
int main ()
{
int num1;
char my_array [256];
printf ("\nInput a number : ");
fgets (my_array, 256, stdin);
num1 = atoi (my_array);
printf ("The value Input is %d.\n\n", num1);
return 0;
}
Sample Output:
Input a number : 100 The value Input is 100.
Flowchart:

C Programming Code Editor:
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Next: Write a C program to convert a string to a double.
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C Programming: Tips of the Day
Static function in C
Making a function static hides it from other translation units, which helps provide encapsulation.
helper_file.c
intf1(int); /* prototype */ staticintf2(int); /* prototype */ intf1(int foo){ return f2(foo); /* ok, f2 is in the same translation unit */ /* (basically same .c file) as f1 */ } intf2(int foo){ return42 + foo; }
main.c:
intf1(int); /* prototype */ intf2(int); /* prototype */ intmain(void){ f1(10); /* ok, f1 is visible to the linker */ f2(12); /* nope, f2 is not visible to the linker */ return0; }
Ref : https://bit.ly/3slAgzt
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