I have try modifying my code to work, i tried different compilers and i"m still getting a link error message. please help me. I'm using Turbo C++
insertdata.cppCode:#include <conio.h> #include <stdio.h> #include<stdlib.h> #include <string.h> #include<ctype.h> void print(char [],char []); void change(char [],char []); int main() { FILE *input; char in[80],out[80]; char *str; input = fopen("data.txt","r"); if(input == NULL) { printf("Error opening input file\n"); system("pause"); return 0; } str=fgets(in,80,input); change(in,out); print(in,out); fclose(input); getch(); return 0; } void change(char in[],char out[]) {int i; for(i=0;i<strlen(in);i++) {if(isalpha(in[i])) out[i]=toupper(in[i]); else out[i]=in[i]; } out[i]='\0'; } void print(char in[],char out[]) {printf("Before: "); puts(in); printf("After: "); puts(out); printf("\n"); }