These options control the C preprocessor, which is run on each C source file before actual compilation.

gcc -D defines a macro to be used by the preprocessor. Syntax: $ gcc -Dname [options] [source files] [-o output file]

If they are defined, their value is 1. __GNUC_GNU_INLINE__. GCC defines this macro if functions declared inline will be handled in GCC's traditional gnu90 mode.

6 авг. 2015 г. · If you wish to define a function-like macro on the command line, write its argument list with surrounding parentheses before the equals sign. gcc: passing list of preprocessor defines - Stack Overflow How can I define a string literal on the GCC command line? Including a #define in all .c source files at compile time Does gcc define anything when -g is specified? - Stack Overflow Другие результаты с сайта stackoverflow.com

If you wish to define a function-like macro on the command line, write its argument list with surrounding parentheses before the equals sign (if any).

The special operator defined is used in ' #if ' and ' #elif ' expressions to test whether a certain name is defined as a macro.

The gcc option -D NAME defines a preprocessor macro NAME from the command line. If the program above is compiled with the command-line option -DTEST , the macro ...

A macro can be defined with an empty value using quotes on the command line, -D NAME ="" . Such a macro is still treated as defined by conditionals such as # ...

GCC commonly refers to: Gulf Cooperation Council, an organization of Arab states; GNU Compiler Collection, a free and open-source cross-platform compiler.

1 мая 2024 г. · The Syntax Error gives no details as to what it feels the issue is and the code runs fine and prints the correct value.