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:

Severity	Description
`severe`	Must be corrected. The program's execution is terminated when the error is encountered unless the program's I/O statements use the END, EOR, or ERR branch specifiers to transfer control, perhaps to a routine that uses the IOSTAT specifier. (See Using the END, EOR, and ERR Branch Specifiers and Using the IOSTAT Specifier and Fortran Exit Codes and Methods of Handling Errors.) For severe errors, stack trace information is produced by default, unless the environment variable `FOR_DISABLE_STACK_TRACE` is set. If the command line option -traceback (Linux* OS and Mac OS* X) or /traceback (Windows* OS) is specified, the stack trace information contains program counters set to symbolic information. Otherwise, the information contains merely hexadecimal program counter information. In some cases stack trace information is also 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.
`error`	Should be corrected. The program might continue execution, but the output from this execution might be incorrect. For errors of severity type error, stack trace information is produced by default, unless the environment variable `FOR_DISABLE_STACK_TRACE` is set. If the command line option -traceback (Linux OS and Mac OS X) or /traceback (Windows) is specified, the stack trace information contains program counters set to symbolic information. Otherwise, the information contains merely hexadecimal program counter information. In some cases stack trace information is also 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.
`warning`	Should be investigated. The program continues execution, but output from this execution might be incorrect.
`info`	For informational purposes only; the program continues.

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

The following example applies to Linux OS and Mac OS X:

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 OS and Mac OS X), or %PATH% (Windows OS) 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:

libifcore message catalogs and related text message files	Linux OS and Mac OS X	ifcore_msg.cat ifcore_msg.msg
libifcore message catalogs and related text message files	Windows OS	ifcore_msg.dll ifcore_msg.mc
libirc message catalogs and related text message files	Linux OS and Mac OS X	irc_msg.cat irc_msg.msg
libirc message catalogs and related text message files	Windows OS	irc_msg.dll irc_msg.mc
libm message catalogs and related text message files	Linux OS and Mac OS X	libm.cat libm.msg
libm message catalogs and related text message files	Windows OS	libmUI.dll libmUI.mc