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-rw-r--r--scm/extent-sampling/wrap.scm20
1 files changed, 20 insertions, 0 deletions
diff --git a/scm/extent-sampling/wrap.scm b/scm/extent-sampling/wrap.scm
index 6bf0972..439a57d 100644
--- a/scm/extent-sampling/wrap.scm
+++ b/scm/extent-sampling/wrap.scm
@@ -324,6 +324,17 @@
%null-pointer))
(extent-oracle extent-oracle)))
+(define maybe-procedure->integrand
+ (match-lambda
+ ((? procedure? integrand)
+ (make-integrand
+ (procedure->pointer double
+ (lambda (r x params)
+ (integrand r x))
+ (list double '* '*))
+ %null-pointer))
+ (integrand integrand)))
+
(define-public (volume extent-oracle true-volume dimension rtol)
(let ((stats (rstat-alloc)))
((pointer->procedure double
@@ -333,3 +344,12 @@
true-volume %gsl-random-state dimension rtol stats)
(rstat-n stats)))
+(define-public (integral integrand extent-oracle true-integral dimension rtol)
+ (let ((stats (rstat-alloc)))
+ ((pointer->procedure double
+ (dynamic-func "integral" lib-extentsampling)
+ (list '* '* double '* unsigned-int double '*))
+ (maybe-procedure->integrand integrand)
+ (maybe-procedure->extent-oracle extent-oracle)
+ true-integral %gsl-random-state dimension rtol stats)
+ (rstat-n stats)))