C program to String to lower case - STRLWR

Below is C program to String to lower case - STRLWR.

Program:

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/* STRING TO LOWER CASE - STRLWR */   #include<stdio.h>   int main() {  char str[100];  int i;  printf("Please enter a string: ");    // gets(str);  // fgets is a better option over gets to read multiword string .    fgets(str, 100, stdin);    // Following can be added for extra precaution for '\n' character  // if(str[length(str)-1] == '\n') str[strlen(str)-1]=NULL;     for(i=0;str[i]!=NULL;i++)  {   if(str[i]>='A'&&str[i]<='Z')    str[i]+=32;  }     printf("String in lower case is: %s",str);    return 0; }