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 30556-bb9f5f8fc8) Lines: 1903 2156 88.3 % Date: 2025-11-25 09:20:50 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	598
ffsumnbirred	616
ZXM_incremental_CRT	653
ZXM_init_CRT	679
FpX_Fp_translate_basecase	700
RgX_RgXY_ResBound_1	854
ffinit_Artin_Schreier	955
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	1965
FpXY_FpXQ_evaly	2072
checkmap	2261
FlxX_resultant_subres	2500
ffeltmap_i	2709
ffnbirred	3178
RgX_norml1_1	3283
RgX_is_FpXQX	3395
ZXQ_minpoly_slice	3523
ZXQ_minpoly_worker	3523
_Fq_s	3584
ZXQX_disc_all	3836
ZXQX_resultant_all	3899
ZXQX_resultant_bound	3902
nfX_disc	4067
ZXQX_resultant_bound_i	4217
ffmap_i	4459
get_Fq_field	4585
charact_res	4739
ZXQX_resultant_slice	4802
ZXQX_resultant_worker	4802
RgX_to_FpXQX	5105
FpXC_center	5467
ZM_init_CRT	5964
FlxY_to_FlyX	6110
Flx_FlxY_resultant	6110
char_update_int	6594
fpinit_check	7325
FlxX_pseudorem	7470
_Fq_inv	7651
Z_incremental_CRT	7742
ZM_incremental_CRT	7763
FqM_to_FlxqM	7970
RgX_RgXY_ResBound	8018
sqrN2	8872
ZX_compositum	9698
ZX_compositum_lambda	9698
QXQ_charpoly	9772
ZX_ZXY_ResBound_1	10082
ZX_composedsum_i	10084
ZX_composedsum_worker	10347
ZX_composedsum_slice	10348
ZXQX_resultant_prime	10824
FqC_red	13219
FqXY_eval	14623
Fq_powu	15050
QXQ_norm	19418
ZX_ZXY_resultant_LERS	22113
ZXQ_charpoly_sqf	22594
Flx_resultant_set_dglist	23642
addii_abs	25556
characteristic	28014
ffinit_fact_Flx	28961
ZX_norml1_1	31644
flinit	31888
ZX_init_CRT	32193
QXQ_div	33046
FqX_Fq_translate	33880
FpXQX_FpXQ_translate	33887
FpXQX_FpXQ_translate_basecase	33887
_Fq_equal0	34720
FpXQX_normalize	38031
FqV_roots_to_pol	40454
ZX_ZXY_rnfequation_lambda	40495
Fq_Fp_mul	44041
RgX_to_FqX	49158
RgM_to_FqM	52108
init_Flxq_i	53046
init_Fq	54735
init_Fq_i	55302
FqX_Fq_add	55832
ZX_resultant	56077
ZX_ZXY_resultant_all	59877
ZX_ZXY_rnfequation	60534
Rg_is_FpXQ	60900
ZX_ZXY_resultant	79168
Fq_halve	81354
Fq_inv	87596
FqXY_evalx	97321
FqC_to_FlxqC	103464
FqV_red	109318
RgM_to_Flm	119136
QXQ_div_slice	120715
QXQ_div_worker	120715
ZX_ZXY_resultant_slice	124938
ZX_ZXY_resultant_worker	124938
QXQ_inv	145932
swap_vars	146557
ZX_incremental_CRT_raw	148007
FqX_Fq_mul_to_monic	148996
flinit_check	149555
monomialcopy	157969
ZX_ZXY_ResBound	166681
Fq_sqrtn	170765
log2N2	176759
charact	177338
_Fq_mul	203364
QXQ_inv_slice	212600
QXQ_inv_worker	212600
RgC_to_FqC	214970
RgM_to_FpM	219102
_Fq_red	257292
_Fq_neg	268555
_Fq_add	303366
pol_x_powers	325923
Fq_div	343791
ZX_ZXY_resultant_prime	364846
Flx_FlxY_resultant_polint	368455
RgV_to_Flv	381181
FqX_eval	390935
QXQ_sqr	406380
Fq_mulu	490598
Fq_sqr	611194
QXQ_mul	842959
FpXV_FpC_mul	851487
ZXX_ResBound	1010446
ZXX_resultant_interp	1010449
ZXX_resultant	1010484
ZXX_resultant_slice	1015719
ZXX_resultant_worker	1015720
Fq_neg	1077416
Fq_pow	1087158
ZXX_resultant_prime	1117812
FlxX_resultant_polint	1117815
ZX_discbound	1132136
ZX_disc	1135342
ZX_disc_all	1196406
Rg_to_FpXQ	1207650
ZXQ_charpoly	1246893
ZX_norml1	1301901
ZX_resultant_all	1346981
ZX_resultant_slice	1492423
ZX_resultant_worker	1492433
RgC_to_FpC	1586707
Fq_sqrt	1892926
ZXX_is_sparse	2020953
RgX_is_ZXX	2021218
Flx_resultant_all	2086082
FlxY_evalx_drop	2110050
resbound	2187554
gen_crt	2282886
gen_inccrt	3067670
RgX_to_FpX	3184100
ZX_resultant_prime	3858248
FlxY_eval_resultant	4346224
Fl_chinese_coprime	5157271
Flx_FlxY_eval_resultant	5538854
Fq_sub	8562842
Fq_mul	8608658
gen_inccrt_i	8744602
primelist	9323200
Fq_add	11592895
monomial	13635369
RgX_is_FpX	27963035
Rg_to_Fp	43146640
Rg_is_Fp	70214561

Generated by: LCOV version 1.16