Run-Time Message Display and Format

Fortran run-time messages have the following format:

forrtl: severity (number): message-text

where:

• forrtl
  Identifies the source as the Intel Fortran run-time system (Run-Time Library or RTL).

• severity
  The severity levels are: severe, error, warning, or info.

• number
  This is the message number; also the IOSTAT value for I/O statements.

• message-text
  Explains the event that caused the message.

The following table explains the severity levels of run-time messages, in the order of greatest to least severity. The severity of the run-time error message determines whether program execution continues:

For a description of each Intel Fortran run-time error message, see Overview of Run-Time Error Messages and related topics.

The following example applies to Linux and Mac OS systems:

In some cases, stack trace information is produced by the compiled code at run time to provide details about the creation of array temporaries.

(If FOR_DISABLE_STACK_TRACE is set, no stack trace information is produced.)

The following program generates an error at line 12:

program ovf                     
real*4 x(5),y(5)
integer*4 i

x(1) = -1e32
x(2) = 1e38
x(3) = 1e38
x(4) = 1e38
x(5) = -36.0

do i=1,5
y(i) = 100.0*(x(i))
print *, 'x = ', x(i), ' x*100.0 = ',y(i)
end do
end
The following command line produces stack trace information for the program executable.
> ifort -O0 -fpe0 -traceback ovf.f90 -o ovf.exe
> ovf.exe

x =  -1.0000000E+32  x*100.0 =  -1.0000000E+34  
forrtl: error (72): floating overflow
Image        PC         Routine       Line      Source
ovf.exe      08049E4A   MAIN__             14   ovf.f90
ovf.exe      08049F08   Unknown       Unknown   Unknown
ovf.exe      400B3507   Unknown       Unknown   Unknown
ovf.exe      08049C51   Unknown       Unknown   Unknown
Abort
The following suppresses stack trace information because the FOR_DISABLE_STACK_TRACE environment variable is set.
> setenv FOR_DISABLE_STACK_TRACE true
> ovf.exe

x =  -1.0000000E+32  x*100.0 =  -1.0000000E+34
forrtl: error (72): floating overflow              
Abort

Run-Time Library Message Catalog File Location

The libifcore, libirc, and libm run-time libraries ship message catalogs.  When a message by one of these libraries is to be displayed, the library searches for its message catalog in a directory specified by either the NLSPATH (Linux and Mac OS), or %PATH% (Windows) environment variable.  If the message catalog cannot be found, the message is displayed in English.

The names of the three message catalogs are as follows: