These messages report valid but questionable use of the language being compiled. The compiler displays warnings by default. You can suppress warning messages by using the -W0 option. Warnings do not stop translation or linking. Warnings do not interfere with any output files. Some representative warning messages are:
constant truncated - precision too great
non-blank characters beyond column 72 ignored
Hollerith size exceeds that required by the context
The warning messages report possible errors and use of non-standard features in the source file.
The following options suppress or enable warning messages.
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-cerrs[-] |
Causes error and warning messages to be generated in a terse format:
-cerrs- disables -cerrs. |
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-w |
Suppresses all warning messages. |
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-w0 |
Suppresses all warning messages generated by preprocessing and compilation. Error messages are still be displayed. |
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-w1 |
Display warning messages. This is the default. |
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-w90 |
Suppresses warning messages about non-standard Fortran 95 features used. |
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-WB |
On a bound check violation, issues a warning instead of an error. (This is to accommodate old FORTRAN code, in which array bounds of dummy arguments were frequently declared as 1.) |
For example, the following command compiles newprog.f and displays compiler errors, but not warnings:
IA-32 compiler:
prompt>ifc -W0 newprog.f
Itanium(TM) compiler:
prompt>efc -W0 newprog.f