c include files

Two cases are differentiated:1, #include <> compiler will only go to the System file directory to find, can not find the error.2, #include "" The compiler will look in the user directory first, then to the compiler set directory to find, and finally

From: http://blog.csdn.net/suwei19870312/article/details/6665305 In some large projects, there may be dozens of basic classes, which are inevitably referenced by each other (not satisfying the inheritance relationship, but composite relationship ).

Tip: cannot open include file: 'stdafx. H': no such file or directory # Include "stdafx. H" before # include, that is, the beginning of the program. To use the precompiled header file, you need to put it at the beginning of the program, otherwise

Improve the compilation speed of c ++ builder by pre-compiling header files C++ Builder is one of the fastest C ++ compilers. It can be said that it is also the fastest win32C ++ compiler. In addition to the speed, the performance of C ++ builder

<> First, find the header file in the system directory. If the file is not found in the current directory. So use this method like standard header files stdio. h and stdlib. h. "" Is first searched in the current directory. If it cannot be found,

 A simple question: differences between. C and. H files After learning C language for a few months, I feel more and more ignorant. It is also a subroutine, which can be defined in the. c file or in the. h file. What is the difference between the two

Problem Description:1. When compiling a 32-bit architecture binary package for a QT project, the above error occurred, with the specific error message as followsQmake-qt5-o productlicense/makefile Productlicense/productlicense.pro

A simple question: differences between. C and. H filesAfter learning C language for a few months, I feel more and more ignorant. It is also a subroutine, which can be defined in the. c file or in the. h file. What is the difference between the two

The role of file inclusion The so-called "file contains" processing means that a source file can include the entire contents of another source file, which will be included in the document. C + + provides the #include command to implement the "file

The  include (), require () statement contains and runs the specified file. The two structures are exactly the same on the containing file, and the only difference is the handling of the error. The require () statement stops when it encounters a