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 30622-caa25a75db) Lines: 1235 1295 95.4 % Date: 2026-01-22 09:18:00 Functions: 116 121 95.9 % Legend: Lines: hit not hit

Function Name	Hit count
QXQ_reverse	5607
RgV_polint	224
RgV_polint_fast	224
RgXQ_reverse	189
ZC_union_shallow	182
ZM_merge_factor	30408
ZV_indexsort	3721
ZV_search	1073309
ZV_sort	63
ZV_sort_inplace	1990882
ZV_sort_shallow	1227
ZV_sort_uniq	61413
ZV_sort_uniq_shallow	39589
ZV_union_shallow	34766
ZV_union_shallow_t	34948
binomial	102717
binomial0	1845
binomial_lval	3206
binomialuu	81039
check_dy	16188
check_positive_entries	133
closurecmp	7909
cmp_Flx	310323
cmp_RgX	118512
cmp_RgX_Rg	4134
cmp_nodata	648071243
cmp_prime_ideal	669698
cmp_prime_over_p	3344000
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	5373503
gen_indexsort	817037
gen_indexsort_uniq	74965
gen_search	24027969
gen_setminus	259
gen_sort	5015991
gen_sort_inplace	40858885
gen_sort_shallow	371177
gen_sort_uniq	348828
gen_sortspec	190605595
gen_sortspec_uniq	2285756
gprec	91
gprec_w	13634593
gprec_wensure	6101886
gprec_wtrunc	4020812
gtoset	227086
inC	17357
indexlexsort	0
indexsort	196997
indexvecsort	42
init_sort	47486890
key_search	7
laplace	35
lexsort	127980
mathilbert	133
matqpascal	4109
merge_factor	691698
merge_sort_uniq	400703
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	631146
polcyclo_eval	100088
polcyclo_prime	504674
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	2069230
sort_extract	3136624
sort_factor	9327329
sort_factor_pol	1934332
sort_function	126889
stirling	301
stirling1	154
stirling2	1694
tablesearch	1141759
triv_sort	2228192
vandermondeinverse	50413
vandermondeinverseinit	76970
vec_equiv	1141
vec_reduce	22120
vecbinomial	7175008
veccmp	295015
vecsearch	126147
vecsort	2954
vecsort0	742
zv_search	13050841

Generated by: LCOV version 1.16