gtool4/Fortran90 reference - index

# gtool4 Fortran90 tools/library

# documentations

2001-09-25 TOYODA Eizi

## Note

The gtool4 is a developing tools/library. And documentations are mainly written in Japanese, and translated into English. The work is always in progress and incomplete. If you have found inconvenience, please report to davis-ml@gfd-dennou.org.

## Introduction

- before installation - what is needed?
- installation of gtool4
- goal of gtool4
- tutorials

## Concepts

- gtool variable
- gtool variable name

## Commands

- gtview - variable viewer
- gtattr - to set or remove attribute of a variable
- gtvar - to make or remove variable
- gtprint - to print value of variable
- gtlist - listing of variables or attributes
- gtcopy - copy a variable
- gtunary - unary operator
- gtbinary - binary operator
- gtput - to make structured variable

## Library

- library structure of gtool4/Fortran90
- object-oriented coding style in Fortran 90
- list of derived types in gtool4
- naming conventions of procedures
- list of procedures
- about data types
- character string handling
- error handling

## References

- GFD-Dennou Club davis project
- gtool4 netCDF conventions
- other references