Fortran Sum
Fortran do-loop sum — realistic numerical snippet.
program sumdemo
implicit none
integer :: i, total
total = 0
do i = 1, 10
total = total + i
end do
print *, total
end program sumdemo
Specifications
- Language
- fortran
- Role
- idiomatic sample
- Line Endings
- LF
- Wave
- G
What is a .f90 file?
Fortran 90 (.f90) source files contain modern free-form Fortran programs used in numerical and scientific computing.
How to use this file
Use example .f90 files to test Fortran highlighters and compilers on modules, loops, and intentionally invalid samples.
How to use this file for testing
“Fortran Sum” is a deterministic Novus Examples fixture for Syntax highlighting, Code parsing, Editor testing. Idiomatic hello-world programs and realistic snippets across sixteen languages, exercising comments, string escapes, interpolation, numeric literals, and language keywords — for testing syntax highlighters, editor themes, and tree-sitter grammars.
Documented properties for this file: idiomatic sample · fortran · LF. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.
Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such — expect parsers to fail loudly rather than silently accept them.
This is a short, known-correct source file. Run it through your syntax highlighter, linter, formatter, tree-sitter grammar, or parser, and open it in the in-browser editor to tweak and re-download. Each snippet exercises comments, string escapes, literals, and language keywords.
Code examples
gfortran sum.f90 -o prog && ./progRelated files
- f90Fortran HelloMinimal Fortran 90 hello for gfortran / highlighter fixtures.
- f90Fortran ModuleFortran module with a pure-ish helper for module parsers.
- cC — Hello WorldThe classic hello-world in C — an include, main, and printf — for testing highlighters, C compilers, and parsers against the canonical first program.
- cC — Linked list (structs, malloc, pointers)A realistic C program: a singly linked list with a typedef struct, malloc/free memory management, pointer walking, and error handling — for testing highlighters, compilers, and static analysers.
- cC StructC struct SAMPLE for clangd / highlighter fixtures.
- csC# FibonacciA small C# iterator Fibonacci utility — realistic snippet for language tooling.
Generated by generation/code_wave_g.py. Free for any use, no attribution required — license.