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    JS_DoubleIsInt32

    This article covers features introduced in SpiderMonkey 17

    Compare double value and int32_t value.

    Syntax

    bool
    JS_DoubleIsInt32(double d, int32_t *ip);
    
    Name Type Description
    d double A double value to compare
    ip int32_t * A pointer to int32_t value to compare

    Description

    JS_DoubleIsInt32 returns true if d i sequal to *ip.

    (comment from mozilla::NumberEqualsInt32) Casting a floating-point value that doesn't truncate to int32_t, to int32_t, induces undefined behavior. We should definitely fix this (bug 744965), but as apparently it "works" in practice, it's not a pressing concern now.

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    Contributors to this page: Sheppy, markg, arai
    Last updated by: arai,
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