Answer / shriku322

NULL is a macro defined in for the null pointer.
NUL is the name of the first character in the ASCII
character set. It corresponds to a zero value. There's no
standard macro NUL in C, but some people like to define it.
The digit 0 corresponds to a value of 80, decimal.
Don't confuse the digit 0 with the value of '' (NUL)!
NULL can be defined as ((void*)0), NUL as ''.

Answer / abhijit

NULL is a macro defined in <stddef.h> for the null pointer.
<br>NUL is the name of the first character in the ASCII
character set. It corresponds to a zero value. There?s no
<br>standard macro NUL in C, but some people like to define
it. <br>The digit 0 corresponds to a value of 80, decimal.
Don?t confuse the digit 0 with the value of ?? (NUL)!
<br>NULL can be defined as ((void*)0), NUL as ??. <br>

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Answer / bryan olson

Neither NULL nor NUL is a keyword in C.
[International Standard ISO/IEC 9899:1999, Programming
Languages -- C, Section 6.4.1 Keywords]

That said, Abhijit did a good job explaining them.

main() { int i=1; while (i<=5) { printf("%d",i); if (i>2) goto here; i++; } } fun() { here: printf("PP"); }

3 Answers   ME,

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write a c program to do the following: a) To find the area of a triangle. b) To convert the temperature from Fahrenheit to Celsius. c) To convert the time in hours : minutes : seconds to seconds.

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what is difference between #include<stdio.h> and #include"stdio.h"

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Write a C program linear.c that creates a sequence of processes with a given length. By sequence it is meant that each created process has exactly one child. Let's look at some example outputs for the program. Here the entire process sequence consists of process 18181: Sara@dell:~/OSSS$ ./linear 1 Creating process sequence of length 1. 18181 begins the sequence. An example for a sequence of length three: Sara@dell:~/OSSS$ ./linear 3 Creating process sequence of length 3. 18233 begins the sequence. 18234 is child of 18233 18235 is child of 18234 ........ this is coad .... BUt i could not compleate it .....:( #include <stdio.h> #include <sys/types.h> #include <unistd.h> #include <stdlib.h> int main(int argc, char *argv[]) { int N; pid_t pid; int cont; if (argc != 2) { printf("Wrong number of command-line parameters!\n"); return 1; } N = atoi(argv[1]); printf("Creating process sequence of length %d.\n",N); printf("%d begins the sequence.\n",getpid()); /* What I have to do next ?????? */ }

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What is a #include preprocessor?

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String concatenation

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i have a written test for microland please give me test pattern

0 Answers   Microland,

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If I have a char * variable pointing to the name of a function ..

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Write a program to reverse a string.

0 Answers   Global Logic, iNautix, TCS, Wipro,

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sir i wanted to know how we wap in c to add numbers without using arithmetic operator in which digits are entered by user?

2 Answers  

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1. Write a function to display the sum of two numbers in the following ways: By using (i) pass by value (ii) pass by address a. function with argument and with return value b. function with argument and without return value c. without argument , with return value d. without argument , without return value Note: Use pass by address.

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what is difference between procedural language and functional language ?

4 Answers   Wipro,

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