GNU Fortran Compiler Options Quiz

Enables OpenMP extensions, allowing for parallel processing using !$omp directives. It also links the OpenMP runtime library for execution.

Disables range checking for simplified constant expressions during compilation. For example, it allows division by zero without raising an error.

Specifies the Fortran standard for the program. Options include 'f95', 'f2003', 'f2008', 'gnu', and 'legacy'.

Enables the preprocessor, a tool that transforms source code before compilation. Automatically invoked for files with extensions like '.fpp', '.FPP', '.F', '.FOR', etc.

Disables preprocessing, preventing the preprocessor from modifying the source code before compilation.

A free replacement for the unix f95 command.

The GNU Fortran compiler supports the Fortran 77, 90 and 95 standards completely, parts of the Fortran 2003 and Fortran 2008 standards, and several vendor extensions.

The process of translating the user's program into instructions a computer can carry out more quickly.

The result after compiling a program, code designed to be efficiently translated and processed by a machine.

Mistakes made in the source code that prevent compilation.

Messages provided by the compiler that point out mistakes in the source code.

The compiler's ability to generate information about why it's unable to compile the source code.

The process of converting source code, which is written in a human-readable language, into machine code, which is understood by a computer.

A debugging option for GNU Fortran that outputs the program's syntax tree before generating code. It's primarily useful for debugging the compiler itself.

A GNU Fortran option used to trigger specific floating-point exceptions during program execution, causing a signal that interrupts the program and generates a debugging file.

A special type of exception that occurs when a floating-point operation yields a value that is invalid, like the square root of a negative number.

A floating-point exception that arises when the result of a calculation is too large to be represented in the allocated memory for the given data type.

A floating-point exception that occurs if the result of a calculation is very close to zero, but not exactly zero, causing a loss of precision.

GNU Fortran is a compiler for the Fortran programming language that is part of the GNU Compiler Collection (GCC).

A floating-point exception that occurs if a floating-point operation loses precision, like when the result of a calculation cannot be accurately represented in the allocated memory.

A floating-point exception that occurs if a floating-point operation generates a 'denormal' value.

GCC is composed of front ends for different languages, a middle end for optimization, and back ends for different systems.

GENERIC is a language-independent code format that results from the front end's translation of source code.

A floating-point exception that occurs if a floating-point operation produces a value that is deemed 'zero'.

The driver program (gcc) manages the compilation process, calling the appropriate front end, assembler, and linker.

GNU Fortran compiles source code with the '.f', '.for', '.ftn', '.f90', '.f95', '.f03', and '.f08' extensions.

Fixed form Fortran uses a specific format for source code, while free form uses a more flexible and modern layout.

The C preprocessor (CPP) helps with conditional compilation, allowing code sections to be included or excluded based on certain conditions.

The GNU C Preprocessor (in traditional mode) is used for conditional compilation in GNU Fortran.

Specifies the maximum size in bytes for an array allocated on the stack. Exceeding this limit might force the array to be placed in static memory instead.

Tells the compiler to pack the members of a derived type as tightly as possible in memory, potentially saving space.

Instructs the compiler to copy non-contiguous array sections into a contiguous block of memory at runtime, potentially improving access speed.

Makes the compiler choose the smallest integer type that can fit the values in an enumeration set.

Enables the use of BLAS (Basic Linear Algebra Subprograms) functions for matrix operations like MATMUL if the matrix size exceeds a certain threshold.

Tells the compiler to optimize procedures without the RECURSIVE attribute, as well as parallel programs, for stack usage.

Forces the compiler to never allocate local arrays on the stack, instead using static memory.

Enables the use of BLAS functions for matrix operations like MATMUL, if the matrix size is larger than a given limit. The limit is set using the '-fblas-matmul-limit' option.

Returns the address of a variable.

Returns the address of the procedure in C.

Converts C procedure pointer to Fortran procedure pointer.

Converts C pointer to Fortran pointer.

Returns the C address of an object.

Returns the size in bytes of an expression.

Returns the size in bits of an entity (integer, real, etc.).

Returns the value of the bit at a given position in an integer.

Returns the current working directory.

Returns the value of an environment variable.

Returns the process ID of the currently executing program.

Returns the user ID of the currently executing program.

Determines if a given optional dummy argument was specified.

Determines the shape of an array.

Returns the smallest representable number of a given type.