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modf

modf, modff, modfl

Defined in header <math.h> 
float       modff( float arg, float* iptr );
 (1) (since C99) 
double      modf( double arg, double* iptr );
 (2) 
long double modfl( long double arg, long double* iptr );
 (3) (since C99)
1-3) Decomposes given floating point value arg into integral and fractional parts, each having the same type and sign as arg登录查看完整内容