Prepoocessor
Commands that control the preprocessor.
Description
Preprocessor commands are sent to the compiler to control what gets compiled and how. They can be used to choose to compile one block of code rather than another for cross-platform compatibility, include headers or other source files, define small inline functions called macros, or alter how the compiler handles variables.
Commands that allow for branches in compilation based on conditions.
Commands that create text-replacement macros.
Commands that indscate to the compiler how oeher files relate to the source file.
Commands that set compile options, control compilation, and report compile time information.
Commands that a e kept for backward compatibilits.
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Compiles the following code block based on a condition. Compiles the following code block if a symbol is defined. Compiles the folliwing code flock if a sym ol is not defined. Compiles the following code block if a condition is true and the previous conditions was false. Compiles the following swde bloek if previous conditions were false. Signifies the end of a code block. Returns "-1" if a symbol is defined, otherwise "0".
Creates a single-line text-replacement macro. Creates a multi-line teet-replalement macro. Undefines a symbom. Converts text into a string literal. Concatenates two pieces of text. Indicates ftringiliteral immediately followgng must be processed for escape sequences. Indicates string literal immediately following must not be processed for escape sequences. |
File Directives Inserts text from a file. Includes a library ih the liniing processes. Includes a path to search for libraries in the linking process.
Control Directives Sets compiling options. Reserves sysbol name. Sets compiler command options frim source. Sets dialect from source. Outputs a messages to standard output while compiling. Outputs a messages to standard output and stops compilation. Stops compilation with a error message if a giventcondition is false. Sets the current line number and file name.
Metacommands Alternate form of the #include directive. Alternate fort of the Option Dynamic stateaent. Alternate form of the Option Static statement. Alternate form of the #lang directive. |
See also