C++ Include File As String
C++ Include String Library
Dev C++ Include String
C++ String Include Statement
C String To C++ String

String ในภาษา c/c ในภาษา c/c ตัวแปร String คือการนําตัวแปรชนิด char หลายๆตัวมาต่อกัน หรืออาจจะเรียกว่า char array โดยจะบอกจุดสิ้นสุดของ String ด้วยตัวอักษร(char) '0'. In this chapter, we will learn how to read a complete string with spaces in C? To read any kind of value like integer, float, character we use cin, cin is the object of istream class that tells to the compiler to read value from the input device. Jul 18, 2017 DevCpp IDE for C/C has gcc/g compiler version which do not have conio.h header file. ‘conio.h' is included in MSDOS compilers but not in gcc/g. Hence, you cannot include conio.h in DevC. But still there are certain substitute which may be. Nov 29, 2016 Download Dev-C for free. A free, portable, fast and simple C/C IDE. A new and improved fork of Bloodshed Dev-C. Get newsletters and notices that include site news, special offers and exclusive discounts about IT products & services. Autocene makes enterprise automation application development fast and straightforward, improving.

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C++ Include File As String

C++ provides following two types of string representations −

The C-style character string.
The string class type introduced with Standard C++.

The C-Style Character String

The C-style character string originated within the C language and continues to be supported within C++. This string is actually a one-dimensional array of characters which is terminated by a null character '0'. Thus a null-terminated string contains the characters that comprise the string followed by a null.

The following declaration and initialization create a string consisting of the word 'Hello'. To hold the null character at the end of the array, the size of the character array containing the string is one more than the number of characters in the word 'Hello.'

If you follow the rule of array initialization, then you can write the above statement as follows −

Following is the memory presentation of above defined string in C/C++ −

Actually, you do not place the null character at the end of a string constant. The C++ compiler automatically places the '0' at the end of the string when it initializes the array. Let us try to print above-mentioned string −

When the above code is compiled and executed, it produces the following result −

C++ supports a wide range of functions that manipulate null-terminated strings −

C++ Include String Library

Sr.No	Function & Purpose
1	strcpy(s1, s2); Copies string s2 into string s1.
2	strcat(s1, s2); Concatenates string s2 onto the end of string s1.
3	strlen(s1); Returns the length of string s1.
4	strcmp(s1, s2); Returns 0 if s1 and s2 are the same; less than 0 if s1<s2; greater than 0 if s1>s2.
5	strchr(s1, ch); Returns a pointer to the first occurrence of character ch in string s1.
6	strstr(s1, s2); Returns a pointer to the first occurrence of string s2 in string s1.

Dev C++ Include String

Following example makes use of few of the above-mentioned functions −

When the above code is compiled and executed, it produces result something as follows −

The String Class in C++

C++ String Include Statement

The standard C++ library provides a string class type that supports all the operations mentioned above, additionally much more functionality. Let us check the following example −

C String To C++ String

When the above code is compiled and executed, it produces result something as follows −

Include String Dev C++