Compiler Error C2021

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The latest version of this topic can be found at Compiler Error C2021.

expected exponent value, not 'character'

The character used as the exponent of a floating-point constant is not a valid number. Be sure to use an exponent that is in range.

The following sample generates C2021:

// C2021.cpp  
float test1=1.175494351E;   // C2021  

Possible resolution:

// C2021b.cpp  
// compile with: /c  
float test2=1.175494351E8;