how c compiler is written in c itself?
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Any modern C language compiler is mostly written in C with optional assembly code here and there. So compilers like GCC, clang or Visual C++ is nothing but huge C/C++ projects in its source format.
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GCC is an integrated distribution of compilers for several major programming languages. These languages currently include C, C++, Objective-C, Objective-C++, Java, Fortran, and Ada. ... The goal is to make the system interpret the C code and convert it into a machine language that the system understands.
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In the gcc manual it is given that "The C standard library itself is stored in '/usr/lib/libc.
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 The structured programming languages allows the program to be splied into multiple blocks of execution.  In C, you can split the program into such named blocks called functions.  That is why it is called a structured programming language.
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The sizeof operator is the most common operator in C. It is a compile-time unary operator and used to compute the size of its operand. It returns the size of a variable. ... When sizeof() is used with the data types, it simply returns the amount of memory allocated to that data type.
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The GNU gcc compiler is one of the most widely used C/C++ compilers in the world. ... The GNU compilers are highly optimizing compilers that support both the C and C++ languages. The GNU C compiler (gcc) supports the C language, while the GNU C++ compiler (G++) supports the C++ language.
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C - Header Files. A header file is a file with extension . h which contains C function declarations and macro definitions to be shared between several source files. There are two types of header files: the files that the programmer writes and the files that comes with your compiler.
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Built-in & user-defined data types is supported in C++. C is a function driven language because C is a procedural programming language. C++ is an object driven language because it is an object oriented programming. Function and operator overloading is not supported in C.
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There are two types of functions in C programming: Library Functions: are the functions which are declared in the C header files such as scanf(), printf(), gets(), puts(), ceil(), floor() etc. User-defined functions: are the functions which are created by the C programmer, so that he/she can use it many times.
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C Compiler: It compiles C code to native machine code. ... Java Compiler: It compiles JAVA code into an intermediate form called bytecode (Java bytecode ). When you run compiled Java binary, it is compiled again to native machine codes using another compiler called Just In Time Compiler (Just-in-time compilation ).
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Introduction To C C provides standard functions scanf() and printf(), for performing formatted input and output . These functions accept, as parameters, a format specification string and a list of variables.
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C source code files are always compiled into binary code by a program called a "compiler" and then executed. This is actually a multi-step process which we describe in some detail here.
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C Preprocessor directives: Before a C program is compiled in a compiler, source code is processed by a program called preprocessor. This process is called preprocessing. Commands used in preprocessor are called preprocessor directives and they begin with “#” symbol.
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Real programmers can write object-oriented code in ANY language. But no, C is not an 'object-oriented' language. It has no concept of classes, objects, polymorphism, inheritance.
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Although numerous computer languages are used for writing computer applications, the computer programming language, C, is the most popular language worldwide. Everything from microcontrollers to operating systems is written in C since it's very flexible and versatile, allowing maximum control with minimal commands.
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['int main()', '{', 'int n, i;', 'printf("Enter a Number ");', 'scanf("%d",&n);', 'i=1;', 'while(i<=10){', 'printf("%d * %d = %d \\n", n, i, n*i);']
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GCC was originally written as the compiler for the GNU operating system . Good Compiler ? In terms of freedom, Yes it is best, developed to be 100% free software, free in the sense that it respects the user's freedom . In terms of Cost, Yes it is best, It's a freeware.