Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - bibli2.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30773-2078653b96) Lines: 1240 1295 95.8 % Date: 2026-04-04 09:27:12 Functions: 116 121 95.9 % Legend: Lines: hit not hit

Function Name	Hit count
QXQ_reverse	6111
RgV_polint	224
RgV_polint_fast	224
RgXQ_reverse	189
ZC_union_shallow	182
ZM_merge_factor	30955
ZV_indexsort	3773
ZV_search	1074708
ZV_sort	63
ZV_sort_inplace	1991394
ZV_sort_shallow	1288
ZV_sort_uniq	66248
ZV_sort_uniq_shallow	39864
ZV_union_shallow	39354
ZV_union_shallow_t	39536
binomial	102719
binomial0	1848
binomial_lval	3206
binomialuu	81259
check_dy	16188
check_positive_entries	133
closurecmp	7909
cmp_Flx	323077
cmp_RgX	126094
cmp_RgX_Rg	4492
cmp_nodata	649595479
cmp_prime_ideal	705447
cmp_prime_over_p	3476327
cmp_small	77
convol	14
dirdiv	434322
dirmul	441
dirval	869526
err_hermite	21
err_lag	21
err_reverse	7
eulerianpol	77
gen_cmp_RgX	5565500
gen_indexsort	856716
gen_indexsort_uniq	76208
gen_search	24027969
gen_setminus	259
gen_sort	5139936
gen_sort_inplace	40885854
gen_sort_shallow	419263
gen_sort_uniq	353892
gen_sortspec	191646362
gen_sortspec_uniq	2292909
gprec	91
gprec_w	14179771
gprec_wensure	6101886
gprec_wtrunc	4116661
gtoset	227122
inC	17357
indexlexsort	0
indexsort	205500
indexvecsort	42
init_sort	47731821
key_search	7
laplace	35
lexsort	127981
mathilbert	133
matqpascal	4809
merge_factor	692245
merge_sort_uniq	454078
modreverse	28
polchebyshev	4284
polchebyshev1	2156
polchebyshev1_eval	14
polchebyshev1_eval_aux	70
polchebyshev2	2135
polchebyshev2_eval	35
polchebyshev2_eval_aux	91
polchebyshev_eval	4333
polcyclo	635198
polcyclo_eval	100319
polcyclo_prime	508423
polhermite	1442
polhermite_eval	0
polhermite_eval0	1477
polint	329
polint_i	329
polintspec	16223
pollaguerre	2128
pollaguerre_eval	0
pollaguerre_eval0	2163
pollaplace	14
pollegendre	2163
pollegendre_eval	0
pollegendre_eval0	2177
pollegendre_reduced	0
polrecip	161
serlaplace	14
setbinop	21
setdelta	14
setintersect	7
setisset	14
setminus	259
setsearch	536431
setunion	7
setunion_i	7
sort	2096670
sort_extract	3234970
sort_factor	9934595
sort_factor_pol	2004964
sort_function	126889
stirling	301
stirling1	154
stirling2	1694
tablesearch	1148708
triv_sort	2258843
vandermondeinverse	54122
vandermondeinverseinit	85012
vec_equiv	1141
vec_reduce	22470
vecbinomial	7188303
veccmp	295015
vecsearch	126147
vecsort	2954
vecsort0	742
zv_search	13067243

Generated by: LCOV version 1.16