Fortran 77 Language Reference: 5 - Input and Output.
The Fortran language is still evolving; Fortran77 is an internationally agreed standard to which nearly all current compilers conform, but there is now a revised standard, Fortran90, which has been agreed but which has not yet been widely implemented. However, many compilers, including that available on this machine, already incorporate some of the new features of the Fortran90 standard as.
This manual refers to Fortran 77 as Fortran, except where specific distinctions between Fortran 77 and Fortran 66 are discussed. The compiler can convert source programs written in VMS Fortran into machine programs executable under IRIX. Intended Audience This manual is intended as a reference manual, rather than a tutorial, and assumes familiarity with an algebraic language or prior exposure.
One of the things in Fortran I always have some doubt is the format specification fields of FORMAT statement. Time to time I see myself looking for its specification fields. PRINT, WRITE, READ and FORMAT are the ones that uses the formating specifications. Here is the list of the most important ones. FORMAT SPECIFICATION FIELDS: Format field Properties Data type; Iw(.m) w - width m - leading.
The FORMAT statement is a non-executable statement that defines a format specification.It has the following syntax: xx FORMAT fs. where xx is a statement number that is used as an identifier in a READ, WRITE, PRINT, or ASSIGN(label) statement. fs is a format specification. Format Specification. The syntax of a format specification fs is ((flist))where flist is a list of format specifiers of.
Fortran by Fortran: The Format statement. One of the things in Fortran I always have some doubt is the format specification fields of FORMAT statement. Time to time I see myself looking for its specification fields. PRINT, WRITE, READ and FORMAT are the ones that uses the formating specifications. Here is the list of the most important ones. FORMAT SPECIFICATION FIELDS: Format field Properties.
Blank spaces are ignored in Fortran 77. If you remove all blanks in a Fortran 77 program, the program is still acceptable to a compiler but almost unreadable to humans. Column position rules Fortran 77 is not a free-format language, but has a very strict set of rules for how the source code should be formatted. The most important rules are the.
In FORTRAN 77 you had to use single quotes to encapsulate any character string marked for output, but in FORTRAN 90 it is equally valid to use double quotes. If you have a need to output a character string that contains either a single quote or double quote, you'll can place two quotes in a row as in the following example so the computer knows that the quotes are not being used to mark the end.