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 30816-9c15a02229) Lines: 2553 2925 87.3 %
Date: 2026-04-15 09:25:30 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449702
Fl2_inv_pre 197324
Fl2_mul_pre 17092083
Fl2_norm_pre 97118542
Fl2_pow_pre 671534
Fl2_sqr_pre 4907647
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76075
Fl_Flxq_log 35586
Fl_Xp1_powu 0
Fl_to_Flx 21929621
Flm_to_FlxV 2772
FlvV_polint_tree 2587734
Flv_Flm_polint 104560
Flv_inv 1744751
Flv_invVandermonde 153445
Flv_inv_i 1756761
Flv_inv_indir 52207
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21014284
Flv_inv_pre_inplace 19285857
Flv_polint 1485480
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745960
Flv_roots_to_pol 842003
Flv_to_Flx 25491324
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 325155
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 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 292565
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28979
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171861
FlxV_to_Flm_lg 12971541
FlxV_to_FlxX 397987
FlxV_to_ZXV 609501
FlxV_to_ZXV_inplace 3032541
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9842446
Flx_Fl_mul 9423431
Flx_Fl_mul_pre 20197962
Flx_Fl_mul_to_monic 11859122
Flx_Fl_sub 151685
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786256
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169960
Flx_Flxq_eval 791460
Flx_Flxq_eval_pre 2444866
Flx_Frobenius 86619
Flx_Frobenius_pre 13818125
Flx_Laplace 27484
Flx_Newton 54375
Flx_add 73795445
Flx_addmulmul 359027
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527191
Flx_blocks_Flm 12970383
Flx_composedprod 0
Flx_composedsum 27689
Flx_convol 0
Flx_deflate 421318
Flx_deriv 22889905
Flx_diff1 660674
Flx_digits 0
Flx_div_by_X_x 36554962
Flx_divrem 30448367
Flx_divrem_Barrett 604179
Flx_divrem_Barrettspec 905438
Flx_divrem_basecase 61236522
Flx_divrem_pre 78665385
Flx_double 1179459
Flx_equal 26965870
Flx_eval 20421361
Flx_eval2BILspec 603305
Flx_eval_powers_pre 48468537
Flx_eval_pre 136160034
Flx_extgcd 857850
Flx_extgcd_basecase 6184609
Flx_extgcd_halfgcd 126093
Flx_extgcd_pre 6184579
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109542
Flx_gcd 35029286
Flx_gcd_basecase 85789527
Flx_gcd_pre 87448942
Flx_get_red 14506232
Flx_get_red_pre 97865645
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087588
Flx_halfgcd_all_pre 1087587
Flx_halfgcd_pre 873230
Flx_halfres_basecase 1094663
Flx_halfres_i 1114633
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160484
Flx_integ 0
Flx_integXn 423306
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134412
Flx_invBarrett_pre 158873
Flx_invLaplace 54644
Flx_is_l_pow 8137
Flx_is_smooth 74256
Flx_is_smooth_pre 118323
Flx_is_smooth_squarefree 126410
Flx_is_squarefree 9207353
Flx_lgrenormalizespec 2133459
Flx_matFrobenius 0
Flx_matFrobenius_pre 86557
Flx_mod_Xn1 31627
Flx_mod_Xnm1 4908405
Flx_mul 26710058
Flx_mul_pre 381933643
Flx_mulhigh_i 949842
Flx_mullimb 1189054142
Flx_mullimb_ok 3362747398
Flx_mulspec 387658856
Flx_mulspec_Kronecker 7366802
Flx_mulspec_basecase 348039873
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10140
Flx_mulspec_mulii_inflate 294051
Flx_mulspec_quartmulii 97167
Flx_neg 4175278
Flx_neg_inplace 1799550
Flx_negspec 4175271
Flx_normalize 64793460
Flx_powu 0
Flx_powu_pre 3891
Flx_recip 0
Flx_recipspec 7287497
Flx_red 1879932
Flx_rem 42214149
Flx_rem_basecase 799447173
Flx_rem_pre 925010507
Flx_renormalize 2167186128
Flx_rescale 1117
Flx_resultant 4609479
Flx_resultant_basecase_pre 14475596
Flx_resultant_pre 14477583
Flx_shift 27402989
Flx_shiftip 631204448
Flx_splitting 147155
Flx_sqr 370207
Flx_sqr_pre 274381818
Flx_sqrspec 274691974
Flx_sqrspec_Kronecker 670246
Flx_sqrspec_basecase 274780271
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2064
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136558527
Flx_subspec 897751
Flx_to_Flv 66649951
Flx_to_FlxX 71405
Flx_to_ZX 38383079
Flx_to_ZX_inplace 36546197
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 663341
Flx_translate1_basecase 675423
Flx_triple 551294
Flx_unscale 0
Flx_val 4464800
Flx_valrem 28444600
Flxn_div 56585
Flxn_div_pre 56617
Flxn_exp 0
Flxn_expint 109539
Flxn_inv 1037
Flxn_mul 75985
Flxn_mul_pre 5182957
Flxn_mulhigh 527418
Flxn_recip 218005
Flxn_red 6366746
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 20697
Flxq_autpow_pre 69419
Flxq_autpow_sqr 47248
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112099
Flxq_autsum_pre 98576
Flxq_autsum_sqr 104895
Flxq_auttrace 0
Flxq_auttrace_mul 779559
Flxq_auttrace_pre 960128
Flxq_auttrace_sqr 652316
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519417
Flxq_inv 335789
Flxq_inv_pre 4183723
Flxq_invsafe 670441
Flxq_invsafe_pre 5326745
Flxq_is2npower 0
Flxq_issquare 404606
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 170641
Flxq_minpoly 45937
Flxq_minpoly_pre 809708
Flxq_mul 18079987
Flxq_mul_pre 192717457
Flxq_norm 443261
Flxq_order 97322
Flxq_pow 933132
Flxq_pow_Frobenius 23149155
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24197567
Flxq_pow_table 0
Flxq_pow_table_pre 4392
Flxq_powers 232131
Flxq_powers_pre 22440102
Flxq_powu 488367
Flxq_powu_pre 24181014
Flxq_sqr 2763475
Flxq_sqr_pre 273387653
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21900
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212580
Flxq_transmul_init 1746437
RgXV_to_FlxV 7
RgX_to_Flx 2209613
Rg_to_F2 1715084
Rg_to_Fl 73086474
Rg_to_Flxq 3461483
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3797515
ZXV_to_FlxV 0
ZX_to_Flx 171043543
Z_mod2BIL_Flx 305865
Z_mod2BIL_Flx_2 308795
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593888
ZpX_invLaplace_init 497
_Fl2_mul 1923723
_Fl2_pow 671514
_Fl2_rand 113846
_Fl2_sqr 4907643
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11775861
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 148289225
_Flxq_neg 366572
_Flxq_one 22438443
_Flxq_pow 23141742
_Flxq_powu 68
_Flxq_powu_i 22928540
_Flxq_rand 6576
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267200197
bounded_order 394028
gener_Flxq 7201
get_Fl_threshold 2322289874
get_Flx_red 987935574
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12215
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 20996689
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 5621943
kron_unpack_Flx_bits_wide 5696803
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8471223
mkF2 27662743
monomial_Flx 941364
random_Flx 2646170
set_Flxq 68922
set_Flxq_pre 70113018
translate_basecase 688597
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6383911

Generated by: LCOV version 1.16