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 30660-09c6d0ed2e) Lines: 2553 2925 87.3 %
Date: 2026-02-01 09:23:44 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450003
Fl2_inv_pre 197320
Fl2_mul_pre 1954031
Fl2_norm_pre 127589
Fl2_pow_pre 671853
Fl2_sqr_pre 4913039
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76084
Fl_Flxq_log 35542
Fl_Xp1_powu 0
Fl_to_Flx 21958826
Flm_to_FlxV 2772
FlvV_polint_tree 2587375
Flv_Flm_polint 104559
Flv_inv 1744443
Flv_invVandermonde 153445
Flv_inv_i 1756449
Flv_inv_indir 52215
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21139340
Flv_inv_pre_inplace 19403403
Flv_polint 1485155
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745650
Flv_roots_to_pol 842009
Flv_to_Flx 25488380
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 325156
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 295173
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28963
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171878
FlxV_to_Flm_lg 12968971
FlxV_to_FlxX 397977
FlxV_to_ZXV 606834
FlxV_to_ZXV_inplace 3031572
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9844533
Flx_Fl_mul 7327240
Flx_Fl_mul_pre 18289683
Flx_Fl_mul_to_monic 11856356
Flx_Fl_sub 151680
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785950
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13167820
Flx_Flxq_eval 791308
Flx_Flxq_eval_pre 2444619
Flx_Frobenius 86619
Flx_Frobenius_pre 13813166
Flx_Laplace 27350
Flx_Newton 54105
Flx_add 66146766
Flx_addmulmul 416803
Flx_addshift 3729093
Flx_addspec 7259598
Flx_blocks 526436
Flx_blocks_Flm 12968603
Flx_composedprod 0
Flx_composedsum 27559
Flx_convol 0
Flx_deflate 420784
Flx_deriv 22980692
Flx_diff1 14439
Flx_digits 0
Flx_div_by_X_x 36578667
Flx_divrem 30451622
Flx_divrem_Barrett 604845
Flx_divrem_Barrettspec 906387
Flx_divrem_basecase 62280305
Flx_divrem_pre 79725812
Flx_double 2443925
Flx_equal 28899214
Flx_eval 20451175
Flx_eval2BILspec 603295
Flx_eval_powers_pre 48637434
Flx_eval_pre 136199656
Flx_extgcd 856789
Flx_extgcd_basecase 6286145
Flx_extgcd_halfgcd 146655
Flx_extgcd_pre 6286118
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109396
Flx_gcd 35022886
Flx_gcd_basecase 85782320
Flx_gcd_pre 87436561
Flx_get_red 14504164
Flx_get_red_pre 99122251
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1126870
Flx_halfgcd_all_pre 1126875
Flx_halfgcd_pre 873189
Flx_halfres_basecase 1133948
Flx_halfres_i 1153914
Flx_halfres_pre 1044
Flx_halfres_split 19963
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160266
Flx_integ 0
Flx_integXn 422814
Flx_invBarrett 0
Flx_invBarrett_Newton 23159
Flx_invBarrett_basecase 134387
Flx_invBarrett_pre 158847
Flx_invLaplace 54360
Flx_is_l_pow 8127
Flx_is_smooth 74256
Flx_is_smooth_pre 117878
Flx_is_smooth_squarefree 126034
Flx_is_squarefree 9181021
Flx_lgrenormalizespec 2134912
Flx_matFrobenius 0
Flx_matFrobenius_pre 86564
Flx_mod_Xn1 31509
Flx_mod_Xnm1 4907296
Flx_mul 27808873
Flx_mul_pre 383498618
Flx_mulhigh_i 948601
Flx_mullimb 1189414432
Flx_mullimb_ok 3427916969
Flx_mulspec 389119323
Flx_mulspec_Kronecker 7356102
Flx_mulspec_basecase 351372216
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10145
Flx_mulspec_mulii_inflate 294046
Flx_mulspec_quartmulii 97167
Flx_neg 3264665
Flx_neg_inplace 1780025
Flx_negspec 3264661
Flx_normalize 64819269
Flx_powu 0
Flx_powu_pre 3931
Flx_recip 0
Flx_recipspec 7289253
Flx_red 1880837
Flx_rem 42228716
Flx_rem_basecase 805092617
Flx_rem_pre 929144994
Flx_renormalize 2164437691
Flx_rescale 1117
Flx_resultant 4731472
Flx_resultant_basecase_pre 14595957
Flx_resultant_pre 14598039
Flx_shift 27400184
Flx_shiftip 638250991
Flx_splitting 147436
Flx_sqr 354696
Flx_sqr_pre 278341342
Flx_sqrspec 278481692
Flx_sqrspec_Kronecker 695113
Flx_sqrspec_basecase 277744075
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138644940
Flx_subspec 898935
Flx_to_Flv 66649955
Flx_to_FlxX 71405
Flx_to_ZX 38300133
Flx_to_ZX_inplace 36574830
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204551
Flx_translate1 17099
Flx_translate1_basecase 29191
Flx_triple 1049261
Flx_unscale 0
Flx_val 4478748
Flx_valrem 28488146
Flxn_div 56371
Flxn_div_pre 56379
Flxn_exp 0
Flxn_expint 109390
Flxn_inv 1037
Flxn_mul 75832
Flxn_mul_pre 5181604
Flxn_mulhigh 525467
Flxn_recip 217450
Flxn_red 6364504
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 69447
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 780070
Flxq_auttrace_pre 959905
Flxq_auttrace_sqr 652748
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519346
Flxq_inv 335771
Flxq_inv_pre 4286500
Flxq_invsafe 670282
Flxq_invsafe_pre 5429350
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 170656
Flxq_minpoly 45937
Flxq_minpoly_pre 809685
Flxq_mul 13192545
Flxq_mul_pre 192133532
Flxq_norm 443140
Flxq_order 97328
Flxq_pow 948286
Flxq_pow_Frobenius 24391951
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 25455390
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232005
Flxq_powers_pre 22436691
Flxq_powu 488338
Flxq_powu_pre 24175534
Flxq_sqr 2763146
Flxq_sqr_pre 277359826
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21900
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4212424
Flxq_transmul_init 1746349
RgXV_to_FlxV 7
RgX_to_Flx 2249930
Rg_to_F2 1710162
Rg_to_Fl 73209203
Rg_to_Flxq 3588234
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3813343
ZXV_to_FlxV 0
ZX_to_Flx 171012342
Z_mod2BIL_Flx 305860
Z_mod2BIL_Flx_2 308790
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556483
ZpX_invLaplace_init 497
_Fl2_mul 1925006
_Fl2_pow 671832
_Fl2_rand 113885
_Fl2_sqr 4913048
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11786124
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 150919889
_Flxq_neg 366572
_Flxq_one 22438451
_Flxq_pow 24384541
_Flxq_powu 68
_Flxq_powu_i 22920363
_Flxq_rand 6562
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 269488675
bounded_order 395384
gener_Flxq 7201
get_Fl_threshold 2346968578
get_Flx_red 993199712
get_Flxq_field 68902
get_Flxq_star 283438
init_invlaplace 12514
int_to_Flx 12217
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 20999238
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 5664228
kron_unpack_Flx_bits_wide 5668619
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8484132
mkF2 7327573
monomial_Flx 941265
random_Flx 2645990
set_Flxq 68922
set_Flxq_pre 71370374
translate_basecase 42357
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6417788

Generated by: LCOV version 1.16