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 30702-bddb8d6928) Lines: 1235 1295 95.4 % Date: 2026-02-23 02:23:56 Functions: 116 121 95.9 % Legend: Lines: hit not hit

Function Name	Hit count
indexlexsort	0
polhermite_eval	0
pollaguerre_eval	0
pollegendre_eval	0
pollegendre_reduced	0
key_search	5
setintersect	5
setunion	5
setunion_i	5
err_reverse	6
convol	10
polchebyshev1_eval	10
pollaplace	10
setdelta	10
setisset	10
serlaplace	11
err_hermite	15
err_lag	15
setbinop	15
modreverse	21
polchebyshev2_eval	25
laplace	26
indexvecsort	36
polchebyshev1_eval_aux	50
ZV_sort	54
cmp_small	55
eulerianpol	62
polchebyshev2_eval_aux	65
gprec	74
check_positive_entries	103
mathilbert	114
polrecip	126
ZC_union_shallow	130
stirling1	132
RgXQ_reverse	158
check_dy	182
RgV_polint	191
RgV_polint_fast	191
polintspec	212
gen_setminus	221
setminus	221
stirling	258
polint	280
polint_i	280
dirmul	377
vecsort0	612
vec_equiv	902
polhermite	1030
polhermite_eval0	1055
ZV_sort_shallow	1100
inC	1126
binomial0	1427
stirling2	1452
pollaguerre	1520
polchebyshev2	1525
polchebyshev1	1540
pollaguerre_eval0	1545
pollegendre	1545
pollegendre_eval0	1555
vecsort	2532
binomial_lval	2735
ZV_indexsort	3002
polchebyshev	3060
polchebyshev_eval	3095
matqpascal	3499
cmp_RgX_Rg	3814
QXQ_reverse	5181
closurecmp	6766
vec_reduce	18946
ZM_merge_factor	24009
ZV_union_shallow	33697
ZV_union_shallow_t	33827
ZV_sort_uniq_shallow	34091
vandermondeinverse	45995
ZV_sort_uniq	56720
gen_indexsort_uniq	65212
binomialuu	66413
vandermondeinverseinit	72433
polcyclo_eval	85681
binomial	87546
lexsort	91555
cmp_RgX	105820
vecsearch	108087
sort_function	108699
gtoset	174434
indexsort	175392
veccmp	252830
cmp_Flx	273741
gen_sort_uniq	282753
gen_sort_shallow	358959
dirdiv	372275
merge_sort_uniq	384408
polcyclo_prime	434441
setsearch	459793
polcyclo	542944
merge_factor	590828
cmp_prime_ideal	602347
gen_indexsort	730178
dirval	745304
ZV_search	920959
tablesearch	984217
sort	1629501
ZV_sort_inplace	1656591
sort_factor_pol	1679366
triv_sort	1761510
gen_sortspec_uniq	1894473
sort_extract	2713010
cmp_prime_over_p	2945217
gprec_wtrunc	3444230
gen_sort	4191772
gen_cmp_RgX	4646040
gprec_wensure	5025817
vecbinomial	6158751
sort_factor	8458621
zv_search	10699036
gprec_w	11759613
gen_search	17320616
gen_sort_inplace	33011855
init_sort	38640749
gen_sortspec	155223294
cmp_nodata	515141269

Generated by: LCOV version 1.16