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# C Library Function - strcmp() [ C Standard Library - ](#) ## Description The C library function **int strcmp(const char *str1, const char *str2)** compares the string pointed to by **str1** to the string pointed to by **str2**. ## Declaration Below is the declaration for the strcmp() function. int strcmp(const char *str1, const char *str2) ## Parameters * **str1** -- The first string to be compared. * **str2** -- The second string to be compared. ## Return Value This function returns values as follows: * If the return value is less than 0, it indicates str1 is less than str2. * If the return value is greater than 0, it indicates str1 is greater than str2. * If the return value is equal to 0, it indicates str1 is equal to str2. ## Example The following example demonstrates the usage of the strcmp() function. ## Example #include#includeint main(){char str1; char str2; int ret; strcpy(str1, "abcdef"); strcpy(str2, "ABCDEF"); ret = strcmp(str1, str2); if(ret0){printf("str1 is greater than str2"); }else{printf("str1 is equal to str2"); }return(0); } Let us compile and run the above program, which will produce the following result: str1 is greater than str2 [ C Standard Library - ](#)