sousa-gecko/docs/nspr/reference/plhashcomparator.md

PLHashComparator

(plhashcomparator-syntax)=

Syntax

#include <plhash.h>

typedef PRIntn (PR_CALLBACK *PLHashComparator)(
  const void *v1,
  const void *v2);

(plhashcomparator-description)=

Description

{ref}PLHashComparator is a function type that compares two values of an unspecified type. It returns a nonzero value if the two values are equal, and 0 if the two values are not equal. {ref}PLHashComparator defines the meaning of equality for the unspecified type.

For convenience, two comparator functions are provided. {ref}PL_CompareStrings compare two character strings using strcmp. {ref}PL_CompareValues compares the values of the arguments v1 and v2 numerically.

(plhashcomparator-remark)=

Remark

The return value of {ref}PLHashComparator functions should be of type {ref}PRBool.

(plhashcomparator-see-also)=

See Also

{ref}PL_CompareStrings, {ref}PL_CompareValues