What is ISO/IEC 1539‑1 about?
ISO/IEC 1539‑1 specifies the form and establishes the interpretation of programs expressed in the base Fortran language.
ISO/IEC 1539‑1 specifies
- the forms that a program written in the Fortran language can take
- the rules for interpreting the meaning of a program and its data
- the form of the input data to be processed by such a program, and
- the form of the output data resulting from the use of such a program
Note: This document does not specify:
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the mechanism by which programs are transformed for use on computing systems and determining the number of images of a program
- the operations required for setup and control of the use of programs on computing systems
- the method of transcription of programs or their input or output data to or from a storage medium
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the maximum number of images, or the size or complexity of a program and its data that will exceed the capacity of any particular computing system or the capability of a particular processor
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the physical properties of an image or the relationship between images and the computational elements of a computing system
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the physical properties of the representation of quantities and the method of rounding, approximating, or computing numeric values on a particular processor, except by reference to ISO/IEC/IEEE 60559:2011 under conditions specified in Clause 17
- the physical properties of input/output records, files, and units
- the physical properties and implementation of storage
Who is ISO/IEC 1539‑1 for?
ISO/IEC 1539‑1 on the Fortran language is applicable to:
- software engineers
- fortran application developers
- software testers
- application debuggers
- end users of fortran applications
Why should you use ISO/IEC 1539‑1?
ISO/IEC 1539‑1 helps to promote portability, reliability, maintainability, and efficient execution of Fortran programs for use on a variety of computing systems. It provides guidelines to interpret the Fortran language. So, the users and programmers can interpret the Fortran language better and make better applications using it.
What’s changed since the last update?
ISO/IEC 1539‑1:2018 supersedes ISO/IEC 1539‑1:2010, which is withdrawn.
ISO/IEC 1539‑1:2018 cancels and replaces the third edition (ISO 1539-1:2010), which has been technically revised.
The main changes compared to the previous edition are as follows:
- the technical specifications iso/iec ts 29113:2012 and iso/iec ts 18508:2015 have been incorporated.
- support for IEEE floating-point arithmetic has been updated to iso/iec/ieee 60559:2011