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Standard Library function in C

Below is a sample program explaining the standard library function in C. This tutorial is meant for beginners and has a very simple syntax to try.

#include <stdio.h>
#include <string.h>

int main(void) {
	char source[] = "hello";
	char destination[50];
	int length;

	length = strlen(source);
	printf("length of source string = %d\n", length);

	strcpy(destination, source);
	printf("destination string after copying source is now: %s\n", destination);

	strcat(destination, " world!");
	printf("destination string after appending another string is now: %s\n", destination);

	if (!strcmp(source, "test string")) {
		printf("source and \"hello\" string is same\n");
	} else {
		printf("source is certainly not same as \"test string\"\n");
	}

	return 0;
}

We hope this tutorial is of help. In case you have any other suggestions or questions, do let us know in the comments!

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