PMDF Programmer's Reference Manual
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PMDFoptionGetReal

Get the value of an single precision, floating point-valued option from an option file.

PASCAL

status = PMDF_option_get_real

(opt_context, name, value)

argument information
Argument Data type Access Mechanism
opt_context context pointer read value
name descriptor read reference
value single precision real write reference

C

status = PMDFoptionGetReal

(opt_context, name, name_len, value)

argument information 


int PMDFoptionGetReal(PMDF_opt *opt_context, 
                      char     *name, 
                      int       name_len, 
                      float    *value)

Arguments

opt_context

Pointer to context information generated by a previous call to PMDFoptionRead.

name

Name of the option to obtain the value of. Name can not exceed a length in bytes of SHORT_ALFA. Option names are treated as case insensitive strings.

name_len

Length in bytes of the option name.

value

Value of the specified option.

Description

PMDFoptionGetReal returns in value the value of the specified option. If the option was not specified in the option file or if opt_context is zero (nil), then the content of value is left unchanged.

Return Values

PMDF__OK Normal, successful completion.
PMDF__INVSTRDES Invalid string descriptor for name: descriptor has an invalid value in its DSC$B_CLASS field. No option value returned.
PMDF__STRTRUERR Supplied name string exceeds the maximum permitted length. No option value returned.

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