C String uppercase

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C String uppercase

In this section, you will learn how to convert a string value in to uppercase. In the given example, we have define a string in lowercase characters.

In this section, you will learn how to convert a string value in to uppercase. In the given example, we have define a string in lowercase characters.

C String uppercase

     

In this section, you will learn how to convert a string value in to uppercase. In the given example, we have define a string in lowercase characters. Therefore, in order to convert the characters of string in uppercase (A to Z), we have used the library function toupper() provided by the header file <ctype.h>.

<ctype.h> - This header file is used for testing and converting characters. 

Here is the code:

 

 

 

STRINGUP.C

#include <ctype.h>
#include <stdio.h>
#include <conio.h>

int main(void) {
  char st[40]="hello world";
  int i;
  for (i = 0; st[i]; i++)
  st[i= toupper(st[i]);
  printf("The uppercase of String= %s\n", st);
  getch();
  return 0;
}

Output will be displayed as:

STRINGUP.EXE

Download Source Code:

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