Parameter passing Char to sting (C or C++) - Overclock.net

KoolMan · 04-02-09

hello
hope there are some of you guys who know C or C++

anyway i have to do pass a char as a sting (ithink

)

Code:

#include<stdio.h>

void load(char *name, int *z, int *b, int *t)
{
	printf("Name");
	gets(name);
	printf("enter 3 values ");
	scanf("%d%d%d", &(*z), &(*b), &(*t));
}

void print(char name, int x, int y, int z, float avg)
{
	printf("%sn", name);
	printf("The 3 numbers are %d  %d  %dn", x, y, z);
	printf("the avg is %fn", avg);
}

float calc(int a, int b, int c)

{ 
	int sum;
	float avg;
	sum = a + b + c;
	avg = sum / (float) 3 ;
	return avg;
} 

void main()
{ 
	int a,b,c;
	float avg;
	char name;
	load(&name, &a, &b, &c);
	avg = calc(a, b, c);
	print(name, a, b,c, avg);
}

so without the char name the program works fine once i add it it does not work. asks for Name , then the 3 #, and stops get a windows box saying program stooped working.
hope you guys can help me.
thanks

Spotswood · 04-02-09

The code failed to allocate an array of chars to read the name into i.e. pointer versus array.

Code:

#define GUESS_AS_TO_HOW_MANY_CHARS_NEEDED_FOR_NAME_BUFFER  256

void main()
{ 
	int a,b,c;
	float avg;
	char name[GUESS_AS_TO_HOW_MANY_CHARS_NEEDED_FOR_NAME_BUFFER];
	load(name, &a, &b, &c);
	avg = calc(a, b, c);
	print(name, a, b,c, avg);
}

In my early days of coding, I would remind myself of the difference between the two by declaring string buffers as "arrays":

Code:

void load(char name[], int *z, int *b, int *t)
{
	printf("Name");
	gets(name);
	printf("enter 3 values ");
	scanf("%d %d %d", z, b, t);
}

void print(char name[], int x, int y, int z, float avg)
{
	printf("%sn", name);
	printf("The 3 numbers are %d  %d  %d\n", x, y, z);
	printf("the avg is %f\n", avg);
}

Good luck!

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Parameter passing Char to sting (C or C++)

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