Warning: This is the manual of the legacy Guile 2.2 series. You may want to read the manual of the current stable series instead.

6.6.12.5 Interpreting Bytevector Contents as Floating Point Numbers

Bytevector contents can also be accessed as IEEE-754 single- or double-precision floating point numbers (respectively 32 and 64-bit long) using the procedures described here.

Scheme Procedure: bytevector-ieee-single-ref bv index endianness

Scheme Procedure: bytevector-ieee-double-ref bv index endianness

C Function: scm_bytevector_ieee_single_ref (bv, index, endianness)

C Function: scm_bytevector_ieee_double_ref (bv, index, endianness)

Return the IEEE-754 single-precision floating point number from bv at index according to endianness.

Scheme Procedure: bytevector-ieee-single-set! bv index value endianness

Scheme Procedure: bytevector-ieee-double-set! bv index value endianness

C Function: scm_bytevector_ieee_single_set_x (bv, index, value, endianness)

C Function: scm_bytevector_ieee_double_set_x (bv, index, value, endianness)

Store real number value in bv at index according to endianness.

Specialized procedures are also available:

Scheme Procedure: bytevector-ieee-single-native-ref bv index

Scheme Procedure: bytevector-ieee-double-native-ref bv index

C Function: scm_bytevector_ieee_single_native_ref (bv, index)

C Function: scm_bytevector_ieee_double_native_ref (bv, index)

Return the IEEE-754 single-precision floating point number from bv at index according to the host’s native endianness.

Scheme Procedure: bytevector-ieee-single-native-set! bv index value

Scheme Procedure: bytevector-ieee-double-native-set! bv index value

C Function: scm_bytevector_ieee_single_native_set_x (bv, index, value)

C Function: scm_bytevector_ieee_double_native_set_x (bv, index, value)

Store real number value in bv at index according to the host’s native endianness.