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 30764-6b81f1f3fa) Lines: 2553 2925 87.3 %
Date: 2026-03-26 09:27:02 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449988
Fl2_inv_pre 197401
Fl2_mul_pre 17092057
Fl2_norm_pre 97118577
Fl2_pow_pre 671855
Fl2_sqr_pre 4908800
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76045
Fl_Flxq_log 35578
Fl_Xp1_powu 0
Fl_to_Flx 21957068
Flm_to_FlxV 2772
FlvV_polint_tree 2587671
Flv_Flm_polint 104560
Flv_inv 1744744
Flv_invVandermonde 153445
Flv_inv_i 1756754
Flv_inv_indir 52210
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21139176
Flv_inv_pre_inplace 19419938
Flv_polint 1485467
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745950
Flv_roots_to_pol 842043
Flv_to_Flx 25494302
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 325154
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 296754
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28980
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171858
FlxV_to_Flm_lg 12972408
FlxV_to_FlxX 397987
FlxV_to_ZXV 609482
FlxV_to_ZXV_inplace 3032610
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9846154
Flx_Fl_mul 7327720
Flx_Fl_mul_pre 18100573
Flx_Fl_mul_to_monic 11860434
Flx_Fl_sub 151689
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786251
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13171295
Flx_Flxq_eval 791469
Flx_Flxq_eval_pre 2444911
Flx_Frobenius 86619
Flx_Frobenius_pre 13820015
Flx_Laplace 27488
Flx_Newton 54391
Flx_add 65998907
Flx_addmulmul 358991
Flx_addshift 3704783
Flx_addspec 7210978
Flx_blocks 527860
Flx_blocks_Flm 12972139
Flx_composedprod 0
Flx_composedsum 27696
Flx_convol 0
Flx_deflate 421317
Flx_deriv 23017153
Flx_diff1 660574
Flx_digits 0
Flx_div_by_X_x 36591460
Flx_divrem 30453594
Flx_divrem_Barrett 605281
Flx_divrem_Barrettspec 906610
Flx_divrem_basecase 61240600
Flx_divrem_pre 78688272
Flx_double 2299328
Flx_equal 28323130
Flx_eval 20448588
Flx_eval2BILspec 603313
Flx_eval_powers_pre 48614373
Flx_eval_pre 136208086
Flx_extgcd 857099
Flx_extgcd_basecase 6182671
Flx_extgcd_halfgcd 126074
Flx_extgcd_pre 6182678
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109549
Flx_gcd 35049866
Flx_gcd_basecase 85852860
Flx_gcd_pre 87514394
Flx_get_red 14510844
Flx_get_red_pre 98531130
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087975
Flx_halfgcd_all_pre 1087977
Flx_halfgcd_pre 873323
Flx_halfres_basecase 1095052
Flx_halfres_i 1115019
Flx_halfres_pre 1044
Flx_halfres_split 19963
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160710
Flx_integ 0
Flx_integXn 423387
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134389
Flx_invBarrett_pre 158849
Flx_invLaplace 54674
Flx_is_l_pow 8177
Flx_is_smooth 74256
Flx_is_smooth_pre 118617
Flx_is_smooth_squarefree 126819
Flx_is_squarefree 9200763
Flx_lgrenormalizespec 2135438
Flx_matFrobenius 0
Flx_matFrobenius_pre 86556
Flx_mod_Xn1 31527
Flx_mod_Xnm1 4906875
Flx_mul 26713270
Flx_mul_pre 380218316
Flx_mulhigh_i 950530
Flx_mullimb 1190200887
Flx_mullimb_ok 3384578374
Flx_mulspec 385798324
Flx_mulspec_Kronecker 7334657
Flx_mulspec_basecase 348146000
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10135
Flx_mulspec_mulii_inflate 294055
Flx_mulspec_quartmulii 97167
Flx_neg 3265068
Flx_neg_inplace 1767867
Flx_negspec 3265053
Flx_normalize 64855755
Flx_powu 0
Flx_powu_pre 3956
Flx_recip 0
Flx_recipspec 7290915
Flx_red 1883717
Flx_rem 42233482
Flx_rem_basecase 803241985
Flx_rem_pre 927275117
Flx_renormalize 2152519413
Flx_rescale 1117
Flx_resultant 4740012
Flx_resultant_basecase_pre 14606453
Flx_resultant_pre 14608381
Flx_shift 27407160
Flx_shiftip 634286284
Flx_splitting 147610
Flx_sqr 370294
Flx_sqr_pre 277626240
Flx_sqrspec 277725941
Flx_sqrspec_Kronecker 676992
Flx_sqrspec_basecase 276906043
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 137109467
Flx_subspec 898995
Flx_to_Flv 66659794
Flx_to_FlxX 71405
Flx_to_ZX 38313788
Flx_to_ZX_inplace 36550594
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 663232
Flx_translate1_basecase 675323
Flx_triple 984021
Flx_unscale 0
Flx_val 4474718
Flx_valrem 28506354
Flxn_div 56638
Flxn_div_pre 56652
Flxn_exp 0
Flxn_expint 109545
Flxn_inv 1037
Flxn_mul 75988
Flxn_mul_pre 5185670
Flxn_mulhigh 527834
Flxn_recip 218155
Flxn_red 6370574
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 20699
Flxq_autpow_pre 69417
Flxq_autpow_sqr 47248
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112092
Flxq_autsum_pre 98573
Flxq_autsum_sqr 104889
Flxq_auttrace 0
Flxq_auttrace_mul 779655
Flxq_auttrace_pre 960229
Flxq_auttrace_sqr 652405
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237947
Flxq_div_pre 2313081
Flxq_easylog 519435
Flxq_inv 335769
Flxq_inv_pre 4182774
Flxq_invsafe 670223
Flxq_invsafe_pre 5325602
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 170640
Flxq_minpoly 45937
Flxq_minpoly_pre 809756
Flxq_mul 13194083
Flxq_mul_pre 190793146
Flxq_norm 443245
Flxq_order 97322
Flxq_pow 932897
Flxq_pow_Frobenius 23776691
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24824899
Flxq_pow_table 0
Flxq_pow_table_pre 4394
Flxq_powers 232112
Flxq_powers_pre 22448085
Flxq_powu 488366
Flxq_powu_pre 24188841
Flxq_sqr 2763421
Flxq_sqr_pre 276654403
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21900
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212857
Flxq_transmul_init 1746627
RgXV_to_FlxV 7
RgX_to_Flx 2208858
Rg_to_F2 1715128
Rg_to_Fl 73080313
Rg_to_Flxq 3589491
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798620
ZXV_to_FlxV 0
ZX_to_Flx 171079205
Z_mod2BIL_Flx 305869
Z_mod2BIL_Flx_2 308799
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593908
ZpX_invLaplace_init 497
_Fl2_mul 1923674
_Fl2_pow 671844
_Fl2_rand 113754
_Fl2_sqr 4908819
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11787870
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149808826
_Flxq_neg 366572
_Flxq_one 22449737
_Flxq_pow 23769283
_Flxq_powu 68
_Flxq_powu_i 22935344
_Flxq_rand 6569
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268987953
bounded_order 394016
gener_Flxq 7201
get_Fl_threshold 2335920949
get_Flx_red 990299580
get_Flxq_field 68902
get_Flxq_star 283432
init_invlaplace 12514
int_to_Flx 12211
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 20939355
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 5625529
kron_unpack_Flx_bits_wide 5668281
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8444771
mkF2 27664957
monomial_Flx 941411
random_Flx 2646377
set_Flxq 68922
set_Flxq_pre 70765813
translate_basecase 688499
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6414329

Generated by: LCOV version 1.16