STDC pragma

The standard C11 defines 3 pragmas. They are used to control some aspects of floating point arithmetics. The C/C++ compiler accepts these pragmas syntactically in the language modes C11, C++ 2017 and C++ 2020, but they have no effect. All compilations occur as if the following values are set:

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#pragma STDC CX_LIMITED_RANGE ON

#pragma STDC FENV_ACCESS OFF

#pragma STDC FP_CONTRACT ON

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