copysign : copysign « math.h « C Tutorial

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C Tutorial » math.h » copysign   19. 11. 1. copysign Item Value Header file math.h Declaration float copysignf(float val, float signval); double copysign(double val, double signval); long double copysignl(long double val, long double signval); Function gives val the same sign as signval, and return the result. #include <math.h>   #include <stdio.h>   int main(void)   {     printf("%f", copysignf(1.0, -2.0));       } -1.000000 19. 11. copysign 19. 11. 1.  copysign

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