Header file:
ctype.h
Synopsis:
int toupper (int input)
Description:
converts the given input to lower case if possible
Return Value:
returns upper case of "input", if "input" is in lower case. Otherwise "input" is returned unchanged.
toupper function C example:
#include<stdio.h>
#include<ctype.h>
int main() {
char c;
printf("Enter your input:");
c = getchar();
printf("Result for the given input: %c\n", toupper(c));
return 0;
}
#include<ctype.h>
int main() {
char c;
printf("Enter your input:");
c = getchar();
printf("Result for the given input: %c\n", toupper(c));
return 0;
}
Output:
jp@jp-VirtualBox:~/cpgms$ ./a.out
Enter your input:a
Result for the given input: A
Enter your input:a
Result for the given input: A
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ReplyDeleteFunction toupper takes a character as input in form of an integer. When we pass a value of type char to toupper function, corresponding ASCII value of that character is passed. toupper function in C
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