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

Generated by: LCOV version 1.16