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

Generated by: LCOV version 1.16