Contents

Preface

1. Fortran Library Routines

Data Type Considerations
64-Bit Environments
Fortran Math Functions
abort: Terminate and Write Core File
access: Check File Permissions or Existence
alarm: Call Subroutine After a Specified Time
bit: Bit Functions: and, or, ..., bit, setbit, ...
chdir: Change Default Directory
chmod: Change the Mode of a File
date: Get Current Date as a Character String
date_and_time: Get Date and Time
dtime, etime: Elapsed Execution Time
exit: Terminate a Process and Set the Status
fdate: Return Date and Time in an ASCII String
flush: Flush Output to a Logical Unit
fork: Create a Copy of the Current Process
free: Deallocate Memory Allocated by Malloc
fseek, ftell: Determine Position and Reposition a File
fseeko64, ftello64: Determine Position and Reposition a Large File
getarg, iargc: Get Command-Line Arguments
getc, fgetc: Get Next Character
getcwd: Get Path of Current Working Directory
getenv: Get Value of Environment Variables
getfd: Get File Descriptor for External Unit Number
getlog: Get User's Login Name
getpid: Get Process ID
getuid, getgid: Get User or Group ID of Process
hostnm: Get Name of Current Host
index,rindex,lnblnk: Index or Length of Substring
inmax: Return Maximum Positive Integer
ioinit: Initialize I/O Properties
itime: Current Time
kill: Send a Signal to a Process
link, symlnk: Make a Link to an Existing File
loc: Return the Address of an Object
long, short: Integer Object Conversion
longjmp, isetjmp: Return to Location Set by isetjmp
malloc, malloc64: Allocate Memory and Get Address
mvbits: Move a Bit Field
perror, gerror, ierrno: Get System Error Messages
putc, fputc: Write a Character to a Logical Unit
qsort,qsort64: Sort the Elements of a One-Dimensional Array
ran: Generate a Random Number Between 0 and 1
rand, drand, irand: Return Random Values
rename: Rename a File
secnds: Get System Time in Seconds, Minus Argument
sh: Fast Execution of an sh Command
signal: Change the Action for a Signal
sleep: Suspend Execution for an Interval
stat64, lstat64, fstat64: Get File Status
system: Execute a System Command
time, ctime, ltime, gmtime: Get System Time
topen, tclose, tread,..., tstate: Tape I/O
ttynam, isatty: Get Name of a Terminal Port
unlink: Remove a File
wait: Wait for a Process to Terminate

Index

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