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 30640-c2c58e18c5) Lines: 1903 2156 88.3 % Date: 2026-01-27 08:51:18 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
to_ZX	246
ffeltmaprel_i	252
ffmaprel	252
ffmaprel_i	252
FpX_FpXY_eval_resultant	284
ZXQX_composedsum	315
ZXQX_composedsum_bound	315
nf_direct_compositum	315
residual_characteristic	329
Z_init_CRT	357
ZXQX_composedsum_slice	359
ZXQX_composedsum_worker	359
ZX_composedsum	385
ffcompomap	420
Fp_XpN_powu	434
ffinit	567
ffinit_Artin_Schreier_2	609
ffsumnbirred	616
ZXM_incremental_CRT	653
ZXM_init_CRT	679
FpX_Fp_translate_basecase	700
RgX_RgXY_ResBound_1	854
ffinit_Artin_Schreier	966
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	2009
FpXY_FpXQ_evaly	2072
checkmap	2261
FlxX_resultant_subres	2559
ffeltmap_i	2709
ffnbirred	3178
RgX_norml1_1	3283
RgX_is_FpXQX	3395
ZXQ_minpoly_slice	3523
ZXQ_minpoly_worker	3523
ZXQX_disc_all	3881
ZXQX_resultant_all	3944
ZXQX_resultant_bound	3947
nfX_disc	4112
_Fq_s	4151
ZXQX_resultant_bound_i	4262
ffmap_i	4459
get_Fq_field	4725
charact_res	4739
ZXQX_resultant_slice	4859
ZXQX_resultant_worker	4859
RgX_to_FpXQX	5105
FpXC_center	5467
ZM_init_CRT	5955
FlxY_to_FlyX	6169
Flx_FlxY_resultant	6170
char_update_int	6594
fpinit_check	7325
Z_incremental_CRT	7525
FlxX_pseudorem	7641
ZM_incremental_CRT	7757
RgX_RgXY_ResBound	8057
FqM_to_FlxqM	8510
sqrN2	8911
_Fq_inv	9331
ZX_compositum	9333
ZX_compositum_lambda	9333
ZX_ZXY_ResBound_1	9716
ZX_composedsum_i	9716
QXQ_charpoly	9793
ZX_composedsum_slice	9814
ZX_composedsum_worker	9814
FpXQX_normalize	10643
ZXQX_resultant_prime	10954
FqV_roots_to_pol	11147
ZX_ZXY_rnfequation_lambda	12970
FqXY_eval	14623
Fq_powu	15050
ZX_ZXY_resultant_LERS	17030
QXQ_norm	19418
ZXQ_charpoly_sqf	21411
FqC_red	21946
Flx_resultant_set_dglist	23038
addii_abs	23260
characteristic	28014
ZX_ZXY_resultant_all	28453
QXQ_div	28791
ffinit_fact_Flx	28972
ZX_norml1_1	30148
ZX_init_CRT	30513
flinit	31888
ZX_ZXY_rnfequation	33009
FqX_Fq_translate	33880
FpXQX_FpXQ_translate	33887
FpXQX_FpXQ_translate_basecase	33887
_Fq_equal0	38388
Fq_Fp_mul	43831
RgX_to_FqX	49186
ZX_ZXY_resultant	51013
RgM_to_FqM	52325
init_Flxq_i	52924
ZX_resultant	53450
init_Fq	54613
init_Fq_i	55180
FqX_Fq_add	55832
Rg_is_FpXQ	60900
Fq_inv	62756
FqC_to_FlxqC	78413
Fq_halve	81417
swap_vars	84999
ZX_ZXY_resultant_slice	96716
ZX_ZXY_resultant_worker	96716
FqXY_evalx	97391
FqV_red	102723
QXQ_div_slice	116274
QXQ_div_worker	116275
RgM_to_Flm	118296
ZX_ZXY_ResBound	135680
QXQ_inv	139675
log2N2	145391
ZX_incremental_CRT_raw	146399
FqX_Fq_mul_to_monic	149046
flinit_check	149433
monomialcopy	157969
Fq_sqrtn	170786
charact	177338
QXQ_inv_slice	204849
QXQ_inv_worker	204849
RgC_to_FqC	219128
RgM_to_FpM	222349
_Fq_mul	243341
_Fq_red	303247
ZX_ZXY_resultant_prime	307024
Flx_FlxY_resultant_polint	310632
pol_x_powers	311220
_Fq_neg	315028
Fq_div	343791
_Fq_add	362523
FqX_eval	364595
RgV_to_Flv	369001
QXQ_sqr	404488
Fq_mulu	490241
Fq_sqr	600515
Fq_pow	731101
QXQ_mul	813652
FpXV_FpC_mul	851487
ZXX_ResBound	970061
ZXX_resultant_interp	970062
ZXX_resultant	970096
ZXX_resultant_slice	975359
ZXX_resultant_worker	975360
Fq_neg	1029604
ZX_discbound	1049693
ZX_disc	1052879
ZXX_resultant_prime	1077462
FlxX_resultant_polint	1077463
ZX_disc_all	1082267
ZXQ_charpoly	1150414
ZX_norml1	1223827
ZX_resultant_all	1226359
Rg_to_FpXQ	1291986
ZX_resultant_slice	1407148
ZX_resultant_worker	1407154
RgC_to_FpC	1751090
Fq_sqrt	1893010
ZXX_is_sparse	1940178
RgX_is_ZXX	1940442
Flx_resultant_all	2075096
resbound	2075786
FlxY_evalx_drop	2098121
gen_crt	2134121
gen_inccrt	2890289
RgX_to_FpX	3333887
ZX_resultant_prime	3735963
FlxY_eval_resultant	4177142
Fl_chinese_coprime	5145568
Flx_FlxY_eval_resultant	5192938
gen_inccrt_i	8349857
Fq_mul	8419732
Fq_sub	8553976
primelist	8926154
Fq_add	11499430
monomial	13328494
RgX_is_FpX	27139760
Rg_to_Fp	52328008
Rg_is_Fp	69387893

Generated by: LCOV version 1.16