JS_DoubleToInt32 编辑

Obsolete since JSAPI 38
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

This article covers features introduced in SpiderMonkey 17

Convert a C floating-point number of type double to 32-bit integer per ECMA spec.

Syntax

int32_t
JS_DoubleToInt32(double d);

uint32_t
JS_DoubleToUint32(double d);

Description

JS_DoubleToInt32 converts a C floating-point number of type double to int32, a signed 32-bit integer.

JS_DoubleToUint32 converts a C floating-point number of type double to uint32, an unsigned 32-bit integer.

See Also

• MXR ID Search for JS_DoubleToInt32
• MXR ID Search for JS_DoubleToUint32
• bug 631132
• bug 1112774