ARM VERSION 1.2 Fiche technique télécharger pdf (Page 182)

The C and C++ Libraries

Mathematical functions

The mathematical functions shown in Table 4-17, when supplied with out-of-range

arguments, respond in the way shown.

Table 4-17 Mathematical functions

Function Condition Returned value Error number

acos(x) abs(x) > 1 QNaN EDOM

asin(x) abs(x) > 1 QNaN EDOM

atan2(x,y) x =0, y = 0 QNaN EDOM

atan2(x,y) x = Inf, y = Inf QNaN EDOM

cos(x) x=Inf QNaN EDOM

cosh(x)

Overflow

+Inf ERANGE

exp(x)

Overflow

+Inf ERANGE

exp(x)

Underflow

+0 ERANGE

fmod(x,y) x=Inf QNaN EDOM

fmod(x,y) y = 0 QNaN EDOM

log(x) x < 0 QNaN EDOM

log(x) x = 0 -Inf EDOM

log10(x) x < 0 QNaN EDOM

log10(x) x = 0 -Inf EDOM

pow(x,y)

Overflow

+Inf ERANGE

pow(x,y)

Underflow

0 ERANGE

pow(x,y) x=0 or x=Inf, y=0 +1 EDOM

pow(x,y) x=+0, y<0 -Inf EDOM

pow(x,y) x=-0, y<0 and y integer -Inf EDOM

pow(x,y) x= -0, y<0 and y noninteger QNaN EDOM

pow(x,y) x<0, y noninteger QNaN EDOM

pow(x,y) x=1, y=Inf QNaN EDOM

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ARM VERSION 1.2 Fiche technique Page 182