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 - polarit3.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30571-c0dfe82732) Lines: 1903 2156 88.3 % Date: 2025-12-11 09:22:11 Functions: 205 225 91.1 % Legend: Lines: hit not hit

Function Name	Hit count
FlxX_resultant	0
FlxX_resultant_pre	0
FpXQX_XpN_powu	0
FpX_composedprod	0
FqC_Fq_mul	0
FqC_add	0
FqC_sub	0
FqM_add	0
FqM_sub	0
FqXQ_matrix_pow	0
FqXQ_powers	0
Fq_invsafe	0
Fq_neg_inv	0
QXQ_intnorm	0
RgM_is_FpM	0
RgV_is_FpV	0
ZX_incremental_CRT	0
ffinit_rand	0
init_Flxq	0
vecbinomial_Fp	0
QX_disc	7
FpX_FpXY_resultant	15
fffrobenius	42
QX_resultant	56
_ZXQ_powu	56
err_compo	84
ffextend	91
FpX_composedsum	93
_FpX_composedsum	93
FqC_FqV_mul	105
nfX_resultant	119
ffinvmap	133
RgV_to_FpV	140
ffnbirred0	140
ffembed	189
ffeltmaprel_i	252
ffmaprel	252
ffmaprel_i	252
to_ZX	252
FpX_FpXY_eval_resultant	284
ZXQX_composedsum	315
ZXQX_composedsum_bound	315
nf_direct_compositum	315
residual_characteristic	329
ZXQX_composedsum_slice	359
ZXQX_composedsum_worker	359
ZX_composedsum	385
Z_init_CRT	406
ffcompomap	420
Fp_XpN_powu	434
ffinit	567
ffinit_Artin_Schreier_2	593
ffsumnbirred	616
ZXM_incremental_CRT	653
ZXM_init_CRT	679
FpX_Fp_translate_basecase	700
RgX_RgXY_ResBound_1	854
ffinit_Artin_Schreier	950
ffmap	1036
FqX_Fq_sub	1059
FpX_Fp_translate	1134
char_update_prime	1225
ffpartmapimage	1260
FpXV_composedsum	1588
ffinit_fact	1588
fpinit	1681
FqM_red	1701
ZXQ_minpoly	1701
FpXM_center	1800
Flx_Lazard	1953
FpXY_FpXQ_evaly	2072
checkmap	2261
FlxX_resultant_subres	2484
ffeltmap_i	2709
ffnbirred	3178
RgX_norml1_1	3283
RgX_is_FpXQX	3395
ZXQ_minpoly_slice	3523
ZXQ_minpoly_worker	3523
ZXQX_disc_all	3941
ZXQX_resultant_all	4004
ZXQX_resultant_bound	4007
_Fq_s	4151
nfX_disc	4172
ZXQX_resultant_bound_i	4322
ffmap_i	4459
get_Fq_field	4725
charact_res	4739
ZXQX_resultant_slice	4925
ZXQX_resultant_worker	4925
RgX_to_FpXQX	5105
FpXC_center	5467
ZM_init_CRT	5985
FlxY_to_FlyX	6093
Flx_FlxY_resultant	6093
char_update_int	6594
fpinit_check	7325
FlxX_pseudorem	7421
Z_incremental_CRT	7742
ZM_incremental_CRT	7787
RgX_RgXY_ResBound	8207
FqM_to_FlxqM	8708
sqrN2	9061
_Fq_inv	9331
ZX_compositum_lambda	9697
ZX_compositum	9699
QXQ_charpoly	9772
ZX_ZXY_ResBound_1	10084
ZX_composedsum_i	10086
ZX_composedsum_slice	10346
ZX_composedsum_worker	10347
ZXQX_resultant_prime	11040
FqXY_eval	14623
Fq_powu	15050
QXQ_norm	19418
ZX_ZXY_resultant_LERS	22441
ZXQ_charpoly_sqf	22595
Flx_resultant_set_dglist	23748
FqC_red	24058
addii_abs	25551
characteristic	28014
ffinit_fact_Flx	28957
ZX_norml1_1	31651
flinit	31888
ZX_init_CRT	32508
QXQ_div	33221
FqX_Fq_translate	33880
FpXQX_FpXQ_translate	33887
FpXQX_FpXQ_translate_basecase	33887
FpXQX_normalize	38188
_Fq_equal0	38388
FqV_roots_to_pol	40456
ZX_ZXY_rnfequation_lambda	40523
Fq_Fp_mul	44041
RgX_to_FqX	49186
RgM_to_FqM	52325
init_Flxq_i	52908
init_Fq	54597
init_Fq_i	55164
FqX_Fq_add	55832
ZX_resultant	56077
ZX_ZXY_resultant_all	60234
ZX_ZXY_rnfequation	60563
Rg_is_FpXQ	60900
ZX_ZXY_resultant	79196
Fq_halve	81354
Fq_inv	89312
FqXY_evalx	97321
FqC_to_FlxqC	109023
FqV_red	109471
RgM_to_Flm	118296
QXQ_div_slice	121159
QXQ_div_worker	121159
ZX_ZXY_resultant_slice	124964
ZX_ZXY_resultant_worker	124964
QXQ_inv	146114
swap_vars	146907
ZX_incremental_CRT_raw	148396
FqX_Fq_mul_to_monic	149052
flinit_check	149418
monomialcopy	157969
ZX_ZXY_ResBound	166927
Fq_sqrtn	170786
log2N2	177008
charact	177338
QXQ_inv_slice	212930
QXQ_inv_worker	212930
RgC_to_FqC	219128
RgM_to_FpM	222349
_Fq_mul	243341
_Fq_red	303247
_Fq_neg	315028
pol_x_powers	325943
Fq_div	343791
_Fq_add	362523
ZX_ZXY_resultant_prime	364908
Flx_FlxY_resultant_polint	368518
RgV_to_Flv	369001
FqX_eval	390935
QXQ_sqr	407047
Fq_mulu	490585
Fq_sqr	611432
QXQ_mul	846092
FpXV_FpC_mul	851487
ZXX_ResBound	1010637
ZXX_resultant_interp	1010637
ZXX_resultant	1010672
ZXX_resultant_slice	1015909
ZXX_resultant_worker	1015911
Fq_neg	1080614
Fq_pow	1088229
ZXX_resultant_prime	1118073
FlxX_resultant_polint	1118079
ZX_discbound	1134994
ZX_disc	1138239
ZX_disc_all	1200308
ZXQ_charpoly	1247423
Rg_to_FpXQ	1291986
ZX_norml1	1302868
ZX_resultant_all	1350952
ZX_resultant_slice	1495671
ZX_resultant_worker	1495683
RgC_to_FpC	1751090
Fq_sqrt	1892926
ZXX_is_sparse	2021330
RgX_is_ZXX	2021596
Flx_resultant_all	2090223
FlxY_evalx_drop	2113924
resbound	2188182
gen_crt	2285355
gen_inccrt	3073308
RgX_to_FpX	3335748
ZX_resultant_prime	3866882
FlxY_eval_resultant	4347943
Fl_chinese_coprime	5163406
Flx_FlxY_eval_resultant	5539390
Fq_sub	8563073
Fq_mul	8608670
gen_inccrt_i	8786841
primelist	9375436
Fq_add	11592893
monomial	13641343
RgX_is_FpX	28011723
Rg_to_Fp	52334615
Rg_is_Fp	70279294

Generated by: LCOV version 1.16