CODEWITHSUNDEEP
cstringindexingmpi
Thomas
Thomas

Reputation: 43

How to modify the string using index in C file with MPI?

I'm trying to encrypt my string so I have a simple code where I need to modify the string by accessing its indices and modify each character in the string. I was running it as a normal file with gcc command at first and it worked but when I try to include it in my C file with MPI then it gives me error.

The expected result will be if the string input is "Hello" then the output will be "Khoor".

char str[10] = "Hello";

for(int i = 0; i < strlen(str); i++)
     str[i] = str[i] + 3; //the key for encryption is 3 that is added to ASCII value

printf("\nEncrypted string: %c\n", str);

The error:

error: subscripted value is not an array, pointer, or vector str[i] = str[i] + 3; //the key for encryption is 3 that i...

Upvotes: 0

Views: 89

Answers (1)

Adrian Mole
Adrian Mole

Reputation: 51915

Your problem is trivial and the solution is simple! When you want to print a string (character array) with printf use the %s format specifier; the %c format is for a single character! So, try this:

printf("\nEncrypted string: %s\n", str);

Upvotes: 1

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