Chapter 19 - The Preprocessor

Nov 23, 2012

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2. 19.1 Introduction. PreprocessingOccurs before program compiledInclusion of external filesDefinition of symbolic constantsMacrosConditional compilationConditional executionAll directives begin with

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Chapter 19 - The Preprocessor

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Chapter 13 - The Preprocessor

Chapter 13 - The Preprocessor. Outline 13.1 Introduction 13.2 The #include Preprocessor Directive 13.3 The #define Preprocessor Directive: Symbolic Constants 13.4 The #define Preprocessor Directive: Macros 13.5 Conditional Compilation

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The Preprocessor

The Preprocessor. #include <stdio.h> #define N 10. C program. Preprocessor. Modified C program. Preprocessor. Object codes. Caution. The preprocessor has only a limited knowledge of C. As a result, it’s quite capable of creating illegal programs as it executes directives.

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C Preprocessor

C Preprocessor. Overview Preprocessor Directives Conditional Compilation Predefined Symbolic Constants. Overview. Six phases to execute C: Edit Preprocess Compile Link Load Execute. C Preprocessor. All preprocessor directives begin with # Possible actions Inclusion of other files

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The Preprocessor

The Preprocessor. Introduction. The preprocessor is a program that processes that source code before it passes through the compiler. It operates under the control of directives . Directives are placed before the main lines. Directives begin with the symbol #. Preporecessor. Compiler.

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C Preprocessor

C Preprocessor. C How to Program, 6/e. 13.1 Introduction. The C preprocessor executes before a program is compiled.

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14. THE PREPROCESSOR

14. THE PREPROCESSOR. Preprocessor Directives. • Preprocessing involves making changes to the text of the source program. • Preprocessing is (apparently) done before actual compilation begins. • The preprocessor doesn’t know (very much) C. • Major kinds of preprocessor directives:

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L1Calo PreProcessor Module

L1Calo PreProcessor Module. New MCM. We would like to develop a pin-, size- and latency-compatible substitute for the MCM based on today's components: AD9218 -- dual 105,MHz 10,bit FADC Xilinx Spartan-6 (SC6SLX45) FPGA in the CSG324 (15x15) package

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NASM Preprocessor

NASM Preprocessor. NASM preprocessor. NASM contains a powerful macro processor, which supports conditional assembly, multi-level file inclusion, two forms of macro (single-line and multi-line), and a `context stack' mechanism for extra macro power.

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Preprocessor

Preprocessor. All preprocessor directives or commands begin with a #. E.g. #include <stdio.h> C program → Modified C program → Object Code Can appear anywhere in the program No “;” in the end. preprocessor. compiler. Preprocessor Directives. Macro definition #define, #undef

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C Preprocessor

C Preprocessor. Muldner Chapter 6. 6: Preview. macros (with and without parameters) conditional compilation file inclusion predefined macros applications for debugging macro macro replacement macro substitution. 6: Parameterless Macros. #define macroName macroValue

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Preprocessor Directives

Structure of a C program. Preprocessor Directives. Global Declarations. int main(void) { }. Local Declarations. Executable Statements. Preprocessor Directives.

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The C Preprocessor

The C Preprocessor. Constants. #define MAXSIZE 256 This will lead to the value 256 being substituted for each occurrence of the word MAXSIZE in the file. Macros. Here is an example of a macro which won't work . #define DOUBLE(x) x+x For statement: a = DOUBLE(b) * c;

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Programming in C Chapter 10 The Preprocessor

Programming in C Chapter 10 The Preprocessor. # include “filename” # include <filename>. The Use of #include. file2.c. # include “file2.c”. B. A. A. file2.c. file1.c. file1.c. The Use of #include(cont.). file3.c. file2.c. file1.c. A. # include “file2.c”.

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PREPROCESSOR

PREPROCESSOR. Code replacement Pre-compiler does this # indicates a preprocessor command #include <filename> includes a file before compiling No ending semicolon ; needed, must be in a single line (to continue on the next line use backslash )

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Chapter 17 - The Preprocessor

Chapter 17 - The Preprocessor. Outline 17.1 Introduction 17.2 The #include Preprocessor Directive 17.3 The #define Preprocessor Directive: Symbolic Constants 17.4 The #define Preprocessor Directive: Macros 17.5 Conditional Compilation

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Preprocessor

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Chapter 19 - The Preprocessor

Chapter 19 - The Preprocessor. Outline 19.1 Introduction 19.2 The #include Preprocessor Directive 19.3 The #define Preprocessor Directive: Symbolic Constants 19.4 The #define Preprocessor Directive: Macros 19.5 Conditional Compilation

242 views • 18 slides

The Preprocessor

The Preprocessor. Kernighan/Ritchie: Kelley/Pohl:. Chapter 4.11 Chapter 8. Lecture Overview. The use of #include The use of #define and #undef Macros with arguments Conditional compilation. The Use of #include. The #include preprocessing directive:

522 views • 43 slides

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