#Find word in file c++ how to

* C program to find last occurrence of a word in file. Program to find last occurrence of a word in file /** However, I have written program to find last index of a word in file. I am leaving logic to you, so that you can practice a bit. Logic to find last occurrence of a word is almost similar. Learning C programming at Codeforwin is simple and easy. I am learning C programming at Codeforwin. Then, please give a moment to read pointer arithmetic in C programming. Wondering how (pos - str) gives index of occurrence of word.

If word is not found then set line to -1 While ((fgets(str, BUFFER_SIZE, fptr)) != NULL) Int indexOf(FILE *fptr, const char *word, int *line, int *col) * Finds, first index of a word in given file. Printf(''%s' found at line: %d, col: %d ', word, line + 1, col + 1) Printf('Please check you have read/write previleges. ') * Exit if file not opened successfully */ Printf('Enter word to search in file: ') * C program to find first occurrence of a word in file. Program to find occurrence of a word in file /**

Close fptr file to release all resources.

Check if(pos != NULL) then find column index using col = pos - str. Pos will point to first occurrence of word in str if exists, otherwise points to NULL. To find first occurrence of word in str use pos = strstr(str, word) (where pos is pointer to character). It returns pointer to first occurrence of a given word in a string. If word is found in str then print line and col which is required index and jump to step 8.

Find first index of word in str and store it in col.

Read a line from file, store it in str.

They will store index of line and column of searched word in file. Initialize two variables line = -1 and col = -1.Input word to search in file, store it in some variable say word.Input source file in which you need to search, store its reference to fptr.Step by step descriptive logic to find first occurrence of a word in file.

#Find word in file c++ how to

How to search first and last occurrence of a word in file in C programming.īasic Input Output, String, Functions, Pointers, File Handling Logic to find occurrence of a word in file Logic to find occurrence of a word in file in C program. How to find first or last occurrence of a word in file in C programming. Write a C program to find occurrence of a word in file.