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) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 95.4 % 1295 1235 Test Date: 2026-07-23 17:04:59 Functions: 95.9 % 121 116 Legend: Lines:     hit not hit

Function Name	Hit count
indexlexsort	0
polhermite_eval	0
pollaguerre_eval	0
pollegendre_eval	0
pollegendre_reduced	0
err_reverse	7
key_search	7
setintersect	7
setunion	7
setunion_i	7
convol	14
polchebyshev1_eval	14
pollaplace	14
serlaplace	14
setdelta	14
setisset	14
err_hermite	21
err_lag	21
setbinop	21
modreverse	28
laplace	35
polchebyshev2_eval	35
indexvecsort	42
ZV_sort	63
polchebyshev1_eval_aux	70
cmp_small	77
eulerianpol	77
gprec	91
polchebyshev2_eval_aux	91
check_positive_entries	133
mathilbert	133
stirling1	154
polrecip	161
ZC_union_shallow	182
RgXQ_reverse	189
RgV_polint	224
RgV_polint_fast	224
gen_setminus	259
setminus	259
stirling	301
polint	329
polint_i	329
dirmul	441
vecsort0	742
vec_equiv	1141
ZV_sort_shallow	1288
polhermite	1442
polhermite_eval0	1477
stirling2	1694
binomial0	1855
pollaguerre	2128
polchebyshev2	2135
polchebyshev1	2156
pollaguerre_eval0	2163
pollegendre	2163
pollegendre_eval0	2177
vecsort	2954
binomial_lval	3206
ZV_indexsort	3773
polchebyshev	4284
polchebyshev_eval	4333
cmp_RgX_Rg	4661
matqpascal	5061
QXQ_reverse	6111
closurecmp	7909
check_dy	16188
polintspec	16223
inC	17357
vec_reduce	23044
ZM_merge_factor	30790
ZV_union_shallow	39354
ZV_union_shallow_t	39536
ZV_sort_uniq_shallow	39850
vandermondeinverse	54838
binomialuu	63139
ZV_sort_uniq	66248
binomial	74592
gen_indexsort_uniq	76271
vandermondeinverseinit	85729
polcyclo_eval	100294
lexsort	127981
vecsearch	128247
sort_function	128989
cmp_RgX	130371
indexsort	205791
gtoset	227122
veccmp	295015
cmp_Flx	326390
gen_sort_uniq	353892
gen_sort_shallow	424249
dirdiv	434322
merge_sort_uniq	455057
polcyclo_prime	487804
setsearch	536431
polcyclo	614587
merge_factor	692080
cmp_prime_ideal	705492
gen_indexsort	859980
dirval	869526
ZV_search	1074432
tablesearch	1148558
ZV_sort_inplace	1991692
sort_factor_pol	2017050
sort	2098490
triv_sort	2260643
gen_sortspec_uniq	2292965
sort_extract	3237340
cmp_prime_over_p	3477958
gen_sort	5144098
gen_cmp_RgX	5652934
gprec_wtrunc	5824449
gprec_wensure	6842542
vecbinomial	7190588
sort_factor	9949266
zv_search	13164210
gprec_w	19822603
gen_search	24034171
gen_sort_inplace	40890012
init_sort	47748530
gen_sortspec	191727987
cmp_nodata	649770642

Generated by: LCOV version 2.0-1