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 v2.19.0 lcov report (development 31057-89c4d54ba6) Lines: 95.3 % 1305 1244 Test Date: 2026-07-25 17:02:42 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
mathilbert	133
check_positive_entries	140
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	749
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	30792
ZV_union_shallow	39354
ZV_union_shallow_t	39536
ZV_sort_uniq_shallow	39850
vandermondeinverse	54839
binomialuu	63139
ZV_sort_uniq	66248
binomial	74592
gen_indexsort_uniq	76271
vandermondeinverseinit	85730
polcyclo_eval	100293
lexsort	127981
vecsearch	128247
sort_function	128996
cmp_RgX	130371
indexsort	205793
gtoset	227122
veccmp	295183
cmp_Flx	326390
gen_sort_uniq	353892
gen_sort_shallow	424249
dirdiv	434322
merge_sort_uniq	455057
polcyclo_prime	487799
setsearch	536431
polcyclo	614581
merge_factor	692082
cmp_prime_ideal	705492
gen_indexsort	859982
dirval	869526
ZV_search	1074432
tablesearch	1148558
ZV_sort_inplace	1991692
sort_factor_pol	2017052
sort	2098400
triv_sort	2260553
gen_sortspec_uniq	2292965
sort_extract	3237348
cmp_prime_over_p	3477963
gen_sort	5144016
gen_cmp_RgX	5653778
gprec_wtrunc	5824448
gprec_wensure	6842542
vecbinomial	7190614
sort_factor	9949280
zv_search	13191589
gprec_w	19822811
gen_search	24034171
gen_sort_inplace	40890012
init_sort	47748450
gen_sortspec	191728173
cmp_nodata	649770776

Generated by: LCOV version 2.0-1