F.7.2 Translation

1

During translation the IEC 60559 default modes are in effect:

• The rounding direction mode is rounding to nearest.

• The rounding precision mode (if supported) is set so that results are not shortened.

• Trapping or stopping (if supported) is disabled on all floating-point exceptions.

Recommended practice

2

The implementation should produce a diagnostic message for each translation-time floating-point exception, other than “inexact”;[1] the implementation should then proceed with the translation of the program.

Footnotes

[1]

As floating constants are converted to appropriate internal representations at translation time, their conversion is subject to default rounding modes and raises no execution-time floating-point exceptions (even where the state of the FENV_ACCESS pragma is “on”). Library functions, for example strtod, provide execution-time conversion of numeric strings.