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:

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 - Flx.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30849-48ff4d246c) Lines: 2553 2925 87.3 %
Date: 2026-05-01 09:26:53 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449705
Fl2_inv_pre 197304
Fl2_mul_pre 17093110
Fl2_norm_pre 97118587
Fl2_pow_pre 671532
Fl2_sqr_pre 4912484
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76096
Fl_Flxq_log 35572
Fl_Xp1_powu 0
Fl_to_Flx 21935262
Flm_to_FlxV 2772
FlvV_polint_tree 2587599
Flv_Flm_polint 104560
Flv_inv 1744776
Flv_invVandermonde 153445
Flv_inv_i 1756782
Flv_inv_indir 52213
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21063676
Flv_inv_pre_inplace 19330665
Flv_polint 1485501
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745981
Flv_roots_to_pol 842026
Flv_to_Flx 25498081
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_eval_powers_pre 325158
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26382
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7279
FlxM_mul_Kronecker_i 81591
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116259
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 293611
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28988
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171865
FlxV_to_Flm_lg 12974434
FlxV_to_FlxX 397987
FlxV_to_ZXV 610618
FlxV_to_ZXV_inplace 3032568
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9846209
Flx_Fl_mul 9422617
Flx_Fl_mul_pre 20214786
Flx_Fl_mul_to_monic 11864482
Flx_Fl_sub 151828
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786283
Flx_FlxM_qmul 7107
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13173192
Flx_Flxq_eval 791510
Flx_Flxq_eval_pre 2445072
Flx_Frobenius 86618
Flx_Frobenius_pre 13828085
Flx_Laplace 27489
Flx_Newton 54387
Flx_add 73793677
Flx_addmulmul 360112
Flx_addshift 3768888
Flx_addspec 7339173
Flx_blocks 527670
Flx_blocks_Flm 12973886
Flx_composedprod 0
Flx_composedsum 27701
Flx_convol 0
Flx_deflate 421310
Flx_deriv 22904973
Flx_diff1 660685
Flx_digits 0
Flx_div_by_X_x 36558073
Flx_divrem 30469509
Flx_divrem_Barrett 609719
Flx_divrem_Barrettspec 911612
Flx_divrem_basecase 61303788
Flx_divrem_pre 78745027
Flx_double 1179459
Flx_equal 27062331
Flx_eval 20411748
Flx_eval2BILspec 603333
Flx_eval_powers_pre 48454257
Flx_eval_pre 136170486
Flx_extgcd 859524
Flx_extgcd_basecase 6194236
Flx_extgcd_halfgcd 126133
Flx_extgcd_pre 6194245
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109555
Flx_gcd 35049385
Flx_gcd_basecase 85852779
Flx_gcd_pre 87513898
Flx_get_red 14516042
Flx_get_red_pre 98061243
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088285
Flx_halfgcd_all_pre 1088288
Flx_halfgcd_pre 873399
Flx_halfres_basecase 1095543
Flx_halfres_i 1115711
Flx_halfres_pre 1044
Flx_halfres_split 20166
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160089
Flx_integ 0
Flx_integXn 423400
Flx_invBarrett 0
Flx_invBarrett_Newton 23252
Flx_invBarrett_basecase 134453
Flx_invBarrett_pre 159005
Flx_invLaplace 54648
Flx_is_l_pow 8146
Flx_is_smooth 74256
Flx_is_smooth_pre 118421
Flx_is_smooth_squarefree 126605
Flx_is_squarefree 9221108
Flx_lgrenormalizespec 2148384
Flx_matFrobenius 0
Flx_matFrobenius_pre 86558
Flx_mod_Xn1 31633
Flx_mod_Xnm1 4907225
Flx_mul 26763021
Flx_mul_pre 382779101
Flx_mulhigh_i 950016
Flx_mullimb 1185210955
Flx_mullimb_ok 3384410951
Flx_mulspec 388418517
Flx_mulspec_Kronecker 7383215
Flx_mulspec_basecase 348503259
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10140
Flx_mulspec_mulii_inflate 294065
Flx_mulspec_quartmulii 98886
Flx_neg 4175560
Flx_neg_inplace 1799912
Flx_negspec 4175557
Flx_normalize 64803387
Flx_powu 0
Flx_powu_pre 3908
Flx_recip 0
Flx_recipspec 7301441
Flx_red 1880776
Flx_rem 42224891
Flx_rem_basecase 800646502
Flx_rem_pre 926679758
Flx_renormalize 2168572461
Flx_rescale 1117
Flx_resultant 4609813
Flx_resultant_basecase_pre 14475679
Flx_resultant_pre 14477788
Flx_shift 27407932
Flx_shiftip 632302420
Flx_splitting 147267
Flx_sqr 370230
Flx_sqr_pre 275489687
Flx_sqrspec 275625787
Flx_sqrspec_Kronecker 672005
Flx_sqrspec_basecase 274952753
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136775142
Flx_subspec 903336
Flx_to_Flv 66676132
Flx_to_FlxX 71405
Flx_to_ZX 38409955
Flx_to_ZX_inplace 36584039
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 207991
Flx_translate1 663348
Flx_translate1_basecase 675433
Flx_triple 551294
Flx_unscale 0
Flx_val 4462175
Flx_valrem 28457387
Flxn_div 56614
Flxn_div_pre 56633
Flxn_exp 0
Flxn_expint 109548
Flxn_inv 1037
Flxn_mul 75984
Flxn_mul_pre 5184371
Flxn_mulhigh 527616
Flxn_recip 218053
Flxn_red 6368299
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234855
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20698
Flxq_autpow_pre 69433
Flxq_autpow_sqr 47285
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112118
Flxq_autsum_pre 98582
Flxq_autsum_sqr 104903
Flxq_auttrace 0
Flxq_auttrace_mul 779945
Flxq_auttrace_pre 960783
Flxq_auttrace_sqr 652699
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519449
Flxq_inv 335793
Flxq_inv_pre 4183811
Flxq_invsafe 670709
Flxq_invsafe_pre 5334726
Flxq_is2npower 0
Flxq_issquare 404606
Flxq_log 164217
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170643
Flxq_minpoly 45944
Flxq_minpoly_pre 809884
Flxq_mul 18080046
Flxq_mul_pre 193303409
Flxq_norm 443251
Flxq_order 97322
Flxq_pow 933253
Flxq_pow_Frobenius 23299277
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24347914
Flxq_pow_table 0
Flxq_pow_table_pre 4392
Flxq_powers 232130
Flxq_powers_pre 22459207
Flxq_powu 488494
Flxq_powu_pre 24194447
Flxq_sqr 2763482
Flxq_sqr_pre 274494107
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37674
Flxq_sqrtn 23109
Flxq_sqrtn_spec_pre 21915
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210702
Flxq_sumautsum_sqr 295253
Flxq_trace 4724
Flxq_transmul 4213381
Flxq_transmul_init 1746766
RgXV_to_FlxV 7
RgX_to_Flx 2210275
Rg_to_F2 1715106
Rg_to_Fl 73090640
Rg_to_Flxq 3465661
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798229
ZXV_to_FlxV 0
ZX_to_Flx 171165329
Z_mod2BIL_Flx 305879
Z_mod2BIL_Flx_2 308809
Z_mod2BIL_Flx_3 0
Z_to_Flx 7610112
ZpX_invLaplace_init 504
_Fl2_mul 1924751
_Fl2_pow 671522
_Fl2_rand 113875
_Fl2_sqr 4912465
_Flx_add 0
_Flx_composedsum 3889
_Flx_divrem 0
_Flx_mul 11770720
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 148768097
_Flxq_neg 366572
_Flxq_one 22457581
_Flxq_pow 23291869
_Flxq_powu 68
_Flxq_powu_i 22940620
_Flxq_rand 6586
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268162193
bounded_order 394043
gener_Flxq 7201
get_Fl_threshold 2327710132
get_Flx_red 989734002
get_Flxq_field 68902
get_Flxq_star 283454
init_invlaplace 12521
int_to_Flx 12213
int_to_Flx_half 507058
int_to_Flx_quart 109106
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21032340
kron_pack_Flx_spec_half 688104
kron_unpack_Flx 42785
kron_unpack_Flx_2 2930
kron_unpack_Flx_3 0
kron_unpack_Flx_bits_narrow 5641260
kron_unpack_Flx_bits_wide 5696816
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8491409
mkF2 27670207
monomial_Flx 941542
random_Flx 2647053
set_Flxq 68922
set_Flxq_pre 70299864
translate_basecase 688600
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6390619

Generated by: LCOV version 1.16