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 30670-52869c8c38) Lines: 2553 2925 87.3 %
Date: 2026-02-05 09:23:49 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450331
Fl2_inv_pre 197502
Fl2_mul_pre 1954031
Fl2_norm_pre 127592
Fl2_pow_pre 672241
Fl2_sqr_pre 4913071
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76049
Fl_Flxq_log 35540
Fl_Xp1_powu 0
Fl_to_Flx 21963760
Flm_to_FlxV 2772
FlvV_polint_tree 2587534
Flv_Flm_polint 104562
Flv_inv 1744446
Flv_invVandermonde 153445
Flv_inv_i 1756460
Flv_inv_indir 52213
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21157270
Flv_inv_pre_inplace 19404426
Flv_polint 1485158
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745648
Flv_roots_to_pol 842184
Flv_to_Flx 25488547
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 325159
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26000
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7099
FlxM_mul_Kronecker_i 81581
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116239
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 291636
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28956
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171882
FlxV_to_Flm_lg 12968964
FlxV_to_FlxX 397977
FlxV_to_ZXV 606844
FlxV_to_ZXV_inplace 3031577
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9846156
Flx_Fl_mul 7326468
Flx_Fl_mul_pre 18290724
Flx_Fl_mul_to_monic 11856993
Flx_Fl_sub 151685
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785956
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13167839
Flx_Flxq_eval 791306
Flx_Flxq_eval_pre 2444605
Flx_Frobenius 86619
Flx_Frobenius_pre 13813258
Flx_Laplace 27347
Flx_Newton 54093
Flx_add 66161819
Flx_addmulmul 416799
Flx_addshift 3729093
Flx_addspec 7259598
Flx_blocks 526297
Flx_blocks_Flm 12968606
Flx_composedprod 0
Flx_composedsum 27550
Flx_convol 0
Flx_deflate 420791
Flx_deriv 22981187
Flx_diff1 14445
Flx_digits 0
Flx_div_by_X_x 36598242
Flx_divrem 30449687
Flx_divrem_Barrett 603878
Flx_divrem_Barrettspec 905538
Flx_divrem_basecase 62287179
Flx_divrem_pre 79732939
Flx_double 2443925
Flx_equal 26900727
Flx_eval 20447615
Flx_eval2BILspec 603309
Flx_eval_powers_pre 48630498
Flx_eval_pre 136201509
Flx_extgcd 856781
Flx_extgcd_basecase 6286335
Flx_extgcd_halfgcd 146650
Flx_extgcd_pre 6286388
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109397
Flx_gcd 35033008
Flx_gcd_basecase 85798086
Flx_gcd_pre 87459209
Flx_get_red 14504591
Flx_get_red_pre 97074196
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1126855
Flx_halfgcd_all_pre 1126856
Flx_halfgcd_pre 873167
Flx_halfres_basecase 1133932
Flx_halfres_i 1153898
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160122
Flx_integ 0
Flx_integXn 422813
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134391
Flx_invBarrett_pre 158852
Flx_invLaplace 54369
Flx_is_l_pow 8182
Flx_is_smooth 74256
Flx_is_smooth_pre 118432
Flx_is_smooth_squarefree 126643
Flx_is_squarefree 9180922
Flx_lgrenormalizespec 2133237
Flx_matFrobenius 0
Flx_matFrobenius_pre 86569
Flx_mod_Xn1 31509
Flx_mod_Xnm1 4907194
Flx_mul 27807031
Flx_mul_pre 379494839
Flx_mulhigh_i 948289
Flx_mullimb 1190133740
Flx_mullimb_ok 3365863148
Flx_mulspec 385099846
Flx_mulspec_Kronecker 7353022
Flx_mulspec_basecase 347327747
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10141
Flx_mulspec_mulii_inflate 294053
Flx_mulspec_quartmulii 97167
Flx_neg 3263800
Flx_neg_inplace 1780025
Flx_negspec 3263807
Flx_normalize 64853433
Flx_powu 0
Flx_powu_pre 3874
Flx_recip 0
Flx_recipspec 7287332
Flx_red 1877734
Flx_rem 42228848
Flx_rem_basecase 799179753
Flx_rem_pre 923224727
Flx_renormalize 2154324489
Flx_rescale 1117
Flx_resultant 4731875
Flx_resultant_basecase_pre 14597033
Flx_resultant_pre 14598975
Flx_shift 27399741
Flx_shiftip 632357214
Flx_splitting 147042
Flx_sqr 354625
Flx_sqr_pre 276434636
Flx_sqrspec 276562493
Flx_sqrspec_Kronecker 695044
Flx_sqrspec_basecase 275747425
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138653401
Flx_subspec 897979
Flx_to_Flv 66650124
Flx_to_FlxX 71405
Flx_to_ZX 38300438
Flx_to_ZX_inplace 36575300
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 17104
Flx_translate1_basecase 29198
Flx_triple 1049261
Flx_unscale 0
Flx_val 4476888
Flx_valrem 28507437
Flxn_div 56349
Flxn_div_pre 56354
Flxn_exp 0
Flxn_expint 109395
Flxn_inv 1037
Flxn_mul 75842
Flxn_mul_pre 5180704
Flxn_mulhigh 526259
Flxn_recip 217410
Flxn_red 6360928
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234845
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69449
Flxq_autpow_sqr 47313
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112472
Flxq_autsum_pre 98768
Flxq_autsum_sqr 105110
Flxq_auttrace 0
Flxq_auttrace_mul 780087
Flxq_auttrace_pre 959871
Flxq_auttrace_sqr 652761
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519359
Flxq_inv 335769
Flxq_inv_pre 4286515
Flxq_invsafe 670491
Flxq_invsafe_pre 5429632
Flxq_is2npower 0
Flxq_issquare 404492
Flxq_log 164210
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170664
Flxq_minpoly 45937
Flxq_minpoly_pre 809640
Flxq_mul 13192562
Flxq_mul_pre 188026709
Flxq_norm 443137
Flxq_order 97328
Flxq_pow 948244
Flxq_pow_Frobenius 22335684
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23399198
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232017
Flxq_powers_pre 22437685
Flxq_powu 488339
Flxq_powu_pre 24179731
Flxq_sqr 2763154
Flxq_sqr_pre 275462238
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37665
Flxq_sqrtn 23093
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4212647
Flxq_transmul_init 1746308
RgXV_to_FlxV 7
RgX_to_Flx 2249909
Rg_to_F2 1710066
Rg_to_Fl 73209969
Rg_to_Flxq 3588275
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3812287
ZXV_to_FlxV 0
ZX_to_Flx 171009726
Z_mod2BIL_Flx 305867
Z_mod2BIL_Flx_2 308797
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556611
ZpX_invLaplace_init 497
_Fl2_mul 1924995
_Fl2_pow 672238
_Fl2_rand 113854
_Fl2_sqr 4913108
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11794080
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146818659
_Flxq_neg 366572
_Flxq_one 22439307
_Flxq_pow 22328275
_Flxq_powu 68
_Flxq_powu_i 22925281
_Flxq_rand 6570
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267622571
bounded_order 395389
gener_Flxq 7201
get_Fl_threshold 2327414480
get_Flx_red 987267498
get_Flxq_field 68902
get_Flxq_star 283437
init_invlaplace 12514
int_to_Flx 12216
int_to_Flx_half 507058
int_to_Flx_quart 107385
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20994452
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 5661139
kron_unpack_Flx_bits_wide 5669630
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8482132
mkF2 7327553
monomial_Flx 941246
random_Flx 2645988
set_Flxq 68922
set_Flxq_pre 69319885
translate_basecase 42363
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6410970

Generated by: LCOV version 1.16