The strcmp() function is an in-built function of C programming Which is basically used to compare two strings str1 and str2.
If two strings are same then strcmp() returns 0, otherwise, it returns a non-zero value.
This function compares strings character by character using ASCII value of the characters. The comparison stops when either end of the string is reached or corresponding characters are not same.
strcmp(str1, str2);
Enter first string: Welcome Enter second string: Prayag Entered strings are not same! ------------------------------ Enter first string: aimtocode Enter second string: aimtocode You entered the same string two times --------------------------------
The strings str1 and str2 are equal -----------------------------------
| Functions | Description |
|---|---|
| strcat( ) | The strcat() function is used to concatenate one string(source) at the end of another string(destination). |
| strncat( ) | Appends first n characters of a string at the end of another. |
| strcpy( ) | Copies from str2 into str1 |
| strncpy( ) | Copies given number of characters of one string to another |
| strlen( ) | Gives the length of str1 |
| strcmp( ) | Returns 0 if str1 is same as str2. Returns <0 if strl < str2. Returns >0 if str1 > str2 |
| strcmpi( ) | Same as strcmp() function. But, this function negotiates case. “A” and “a” are treated as same. |
| strchr( ) | Returns pointer to first occurrence of char in str1 |
| strrchr( ) | last occurrence of given character in a string is found. |
| strstr( ) | Returns pointer to first occurrence of str2 in str1 |
| strrstr( ) | Returns pointer to last occurrence of str2 in str1 |
| strdup( ) | Duplicates the string |
| strlwr( ) | Converts string to lowercase |
| strupr( ) | Converts string to uppercase |
| strrev( ) | Reverses the given string |
| strset( ) | Sets all character in a string to given character |
| strnset( ) | It sets the portion of characters in a string to given character |
| strtok( ) | Tokenizing given string using delimiter |