How do you get the line numbers in C?

How do you get the line numbers in C?

Use __LINE__ (that’s double-underscore LINE double-underscore), the preprocessor will replace it with the line number on which it is encountered.

What is __ line __ in C?

__LINE__ is a preprocessor macro that expands to current line number in the source file, as an integer. __LINE__ is useful when generating log statements, error messages intended for programmers, when throwing exceptions, or when writing debugging code.

How do I print line numbers?

Use the –number flag to print line numbers before each line. Alternatively, -n does the same thing. To skip empty lines when counting lines, use the –number-nonblank , or simply -b .

How do I insert line numbers?

Add line numbers to a section or to multiple sections

1. Click in a section or select multiple sections.
2. On the Layout tab, in the Page Setup group, click Line Numbers.
3. Click Line Numbering Options, and then click the Layout tab.
4. In the Apply to list, click Selected sections.
5. Click Line Numbers.

What is Stdc in C language?

2 correct, STDC is used to mark the beginning of standard compiler commands. Compilers are free to add their own pragma commands. A standard compliant compiler is supposed to look for STDC after each #pragma in the preprocessing phrase.

How do you enter a string?

Example of next() method

1. import java.util.*;
2. class UserInputDemo2.
3. {
4. public static void main(String[] args)
5. {
6. Scanner sc= new Scanner(System.in); //System.in is a standard input stream.
7. System.out.print(“Enter a string: “);
8. String str= sc.next(); //reads string before the space.

How do I add line numbers?

Add line numbers to a section or to multiple sections

1. Click in a section or select multiple sections.
2. On the Page Layout tab, in the Page Setup group, click Line Numbers.
3. Click Line Numbering Options, and then click the Layout tab.
4. In the Apply to list, click Selected sections.
5. Click Line Numbers.

How do I add Line Numbers to a PDF?

On the Layout tab, in the Page Setup group, click Line Numbers. Click Line Numbering Options, and then click the Layout tab. In the Apply to list, click Selected sections. Select the Add line numbering check box, and then select the options that you want.

How can I get the line number in C/C++ compilers?

In the sake of debugging purposes, can I get the line number in C /C++ compilers? (standard way or specific ways for certain compilers) Show activity on this post. You should use the preprocessor macro __LINE__ and __FILE__. They are predefined macros and part of the C/C++ standard.

What is a line number and string in C++?

They are predefined macros and part of the C/C++ standard. During preprocessing, they are replaced respectively by a constant string holding an integer representing the current line number and by the current file name.

How does Getline work in C++?

During this first call, getline () allocates a buffer, reads the first line and places the line’s contents in the new buffer. On subsequent calls, getline () updates the same buffer and only reallocates the buffer when it is no longer large enough to fit the whole line.

What is the meaning of__line in C++?

LINE The presumed line number (within the current source file) of the current source line (an integer constant). As an integer constant, code can often assume the value is __LINE__ <= INT_MAX and so the type is int. To print in C, printf () needs the matching specifier: “%d”. This is a far lesser concern in C++ with cout.