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 - lfunutils.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30702-bddb8d6928) Lines: 1645 1789 92.0 % Date: 2026-02-23 02:23:56 Functions: 167 177 94.4 % Legend: Lines: hit not hit

Function Name	Hit count
c4c6_ap	0
c4c6_testp	0
ellsympow_abelian_twist	0
ellsympow_goodred	0
ellsympow_isabelian2	0
ellsympow_isabelian3	0
ellsympow_rootno2	0
eulerf_conj	0
eulerf_genus2	0
safe_Z_pvalrem	0
ellsymsq_bad3	12
eulerf_div	12
eulerf_twist	12
poles_translate	12
lfunabelrel	18
lfunzetakinit_artin	18
vecchar_renormalize	18
ellsympow_deltam2	24
ellsympow_goodred2	24
ellsympow_inertia2	24
ellsymsq_bad2	24
eulerf_artin	24
eulerf_chigen	24
eulerf_ellsympow	24
pole_translate	24
ellsympow_rootno3	30
ellsymsq_badp	36
eulerf_abelrel	36
eulerf_chiZ	36
eulerf_mul	36
lfungenus2	36
lfunmfspec	36
lfunmfspec_i	36
etaselfdual	42
lfunetaquo	42
eulerf_bad	48
eulerf_shift	48
lfunconvolinv	48
lfundiv	48
lfundivpoles	48
lfunvgasub	48
lfunmul	54
elldiscfix	60
ellsympow_deltam3	60
ellsympow_goodred3	60
ellsympow_inertia3	60
eulerf_closure	60
lfunellmfpeters	60
lfunellmfpetersmintwist	60
lfunellsymsqmintwist	60
lfunsympow	60
mfpeters	60
eulerf_hgm	72
lfunconj	72
lfunconvol	72
lfunmul_k	72
lfunmulpoles	72
lfunqf	78
ellsympow_epsm	84
ellsympow_multred	84
ellsympow_nonabelian	84
RgV_Rg_translate	90
lfunshift	90
artin_charfromgens	102
vecan_conj	108
check_0	114
check_real	114
lfunparams	114
ellsympow_gamma	120
lfuncombdual	120
lfunellsympow	120
vecan_eta	126
eulerf_zetak	144
vecan_abelrel	144
closure2ldata	156
rtopoles	156
ellminimaldotwist	162
ellsympow_betam	168
etachar	174
lfunellnf	174
vecan_genus2	174
etacuspidal	198
etaquotype	222
galois_get_conj	226
simple_pole	234
orderpole	240
lfundualpoles	252
eta_product_ZXn	276
lfunproduct	282
lfunzetakinit_quotient	282
deg1ser_shallow	288
qfiseven	288
vecan_ellsympow	294
vecan_qf	342
vecan_mul	354
chigenkerfind	456
lfunabelianrelinit	456
vec_classes	456
veclfunchiinit	456
lfunabelrel_i	474
ginvvec	498
artin_ind	534
lfuncreate_tag	540
vecan_div	540
lfundual	552
linit_get_mat	564
lfuneuler	618
vecan_shift	648
lfunzetak	714
ldata_eulerf	780
dirgenus2_worker	792
lfunzetakinit	822
char_renormalize	1032
eta_ZXn	1042
lfunzetak_i	1080
lfunchiinit	1098
artin_badprimes	1182
artin_gamma	1182
char_is_real	1182
lfunchigen	1314
vecan_chigen	1332
handle_zeta	1368
idealfrobenius_hard	1368
lfunartin	1380
vecan_closure	1697
dirzetak	1806
dirzetak0	1806
Flx_difftable	1836
Flx_genus2trace_naive	1836
artin_ram	1956
dirgenus2	1986
gamma_imagchi	2052
char_dim	2418
char_expand	2448
vecan_twist	2472
cyclotos	2478
vecan_artin	2526
ellsympow_abelian	2682
artin_dim	2754
lfunmisc_to_ldata	3018
vecan_chiZ	3120
vecan_Kronecker	3140
lfunellQ	3306
lfuncreate	3468
lfunell	3480
lfunzeta	3512
vec01	4044
lfuntwist	4446
mkvchi	4452
direllsympow_worker	4848
cyclo_is_real	5568
lfunchiquad	5908
cyclotoi	6600
lfunchiZ	7227
dirartin_worker	13428
lfundatatype	15208
lfunmisc_to_ldata_shallow_i	18195
tag	22600
ldata_vecan	27999
ldata_newprec	28377
idealfrobenius_easy	44916
dirartin	46284
localfactor	50532
chigenevalvec	74340
ellsympow_trace	74526
ellsympow	77184
lfunmisc_to_ldata_shallow	84995
chigeneval_i	90966
checkldata	91396
is_tagged	91492
lfunmisc_to_ldata_i	106208
is_ldata	109946
_direuler_abelrel	589614
abelrel_factor	589650
abelrel_pfactor	848958
gaddmulvec	1551102
gaddmul	1638336

Generated by: LCOV version 1.16