backslash definition

Want to know backslash definition? we have a huge selection of backslash definition information on

Mastering the use of backslash continuation in C + + programming _c language

1 used in the macro definition: #define CV_ARE_SIZES_EQ (MAT1, mat2) \ ((mat1)->rows = = (MAT2)->rows && (mat1)->cols = = (MAT2)-> Cols 2 used in printf, sometimes the statement in printf is too long, need to be split, then use the

PHP-PCRE regular expression escape sequence (backslash)

PHP extension text processing -- PCRE regular expression syntax 3 -- escape sequence (backslash) backlash has multiple usage. First, if it is followed by a non-alphanumeric character, it indicates that the special meaning represented by this

PHP Returns a function addslashes () with a backslash before a predefined character

Instance Add a backslash before each double quotation mark ("): Definition and usage The Addslashes () function returns a string that adds a backslash before a predefined character. The predefined characters are: Single quotation mark (') Double

PHP Returns a function addcslashes () that refers to the character before the backslash

instance Add a backslash before the character "W": Definition and usage The Addcslashes () function returns a string that adds a backslash before the specified character. Note: the Addcslashes () function is case-sensitive. Note: Be careful when

The backslash in C ++ acts as "\"

Today, I checked some of the content in the header file provided by VC. Many statements are followed by backslashes. In my impression, only // indicates the annotation function, however, the backslash is only an escape character. But I have never

The phpstripcslashes () function deletes the backslash added by the addcslashes () function.

The phpstripcslashes () function is used to delete the backslash added by the addcslashes () function. This function can be used to clear data retrieved from a database or an HTML form, this article introduces the usage and basic instances of

PHP removes the backslash function added by the addcslashes () function stripcslashes ()

Instance Remove the backslash in front of "world!": Definition and usage The Stripcslashes () function deletes a backslash added by the addcslashes () function. Tip: This function can be used to clean up data retrieved from a database or from an

newline character "\" macro definition \ string multiple line writing

When there is too much code in your code, it is especially inconvenient to read the code, and you need to use a newline character "\". Be aware of two points when using line breaks: The 1.c compiler is based on ";" To determine if it is a statement,

Detailed definition of macro (#define)

There are many places in the C language where macro definitions are used, such as in header files to prevent header files from being repeatedly included: #ifndef ctest_header_h #define CTEST_HEADER_H /header file content #endif Many macro

About the definition of a macro function

I used to think that the definition of macro is very simple, there is no long macro function, the most commonly used is the definition of Max (), when writing a macro function today, relative to Max (), A little bit longer, and then stepped on a

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