string.h functions

[dunsta]

sorry, simple mistakes, fixed now

From lesson 9 C strings (cprogrmming.com)

This program builds with no errors, but 2 warnings.
But the problem is when I run it, after I enter the first input (name) I get
"Program received signal: “EXC_BAD_ACCESS”.
sharedlibrary apply-load-rules all
(gdb)"

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

//this fuction removes newline from string entered by fgets
void strip_newline(char *str, int size){
	int i;
	for (i = 0; i < size; ++i) {
		if (str[i] == '\n') {
			str[i] = '\0';
			return; // we're donr  so exit the function by returning
		}
	}
	//if we get this there must be no newline
}

int main() 
{
	char name[50];
	char lastname[50];
	char fullname[100]; // big enough to hold name + last name
	printf("Please enter your first name: ");
	fgets(name, 50, stdin);
	strip_newline(name, 50);
	
	//strcmp returns 0 when 2 names are equal
	if (strcmp (name, 'Alex') == 0 ) {
		printf("That's my name too!\n");
	}
	else {
		printf("That's not my name.\n");
	}

	//find the length of your name
	printf("Your name is %d letters long", strlen, name);
	
	printf("Enter last name");
	fgets(lastname, 50, stdin);
	strip_newline(lastname, 50);
	
	fullname[0] = '\0'; //strcat will look for 0 and add second string 
						//starting from that location
	strcat(fullname, name); //copy name to full name
	strcat(fullname, " "); //add space between names
	strcat(fullname, lastname);
	printf("Your full name is %s\n", fullname);
	getchar();
	return 0;
}

[Adak]

This looks like a simple error. Calling strlen(), with no parameters:

printf("Your name is %d letters long", strlen, name);

[Salem]

> This program builds with no errors, but 2 warnings.
Yes, and I bet one of them was about a large character constant for 'Alex' right?

> But the problem is when I run it, after I enter the first input (name) I get
You ignored warnings you didn't understand.

When you compile code, try this
gcc -W -Wall -ansi -pedantic -Werror prog.c
It will tell you about a lot of dumb things which should be avoided.