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 30831-19b50a36d0) Lines: 2553 2925 87.3 %
Date: 2026-04-21 09:26:02 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449386
Fl2_inv_pre 197135
Fl2_mul_pre 17091503
Fl2_norm_pre 97118550
Fl2_pow_pre 671013
Fl2_sqr_pre 4906953
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76046
Fl_Flxq_log 35582
Fl_Xp1_powu 0
Fl_to_Flx 21927431
Flm_to_FlxV 2772
FlvV_polint_tree 2587869
Flv_Flm_polint 104560
Flv_inv 1744765
Flv_invVandermonde 153445
Flv_inv_i 1756764
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21044014
Flv_inv_pre_inplace 19314533
Flv_polint 1485497
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745986
Flv_roots_to_pol 842077
Flv_to_Flx 25489976
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 25999
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 296165
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28986
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171854
FlxV_to_Flm_lg 12971302
FlxV_to_FlxX 397987
FlxV_to_ZXV 609496
FlxV_to_ZXV_inplace 3032595
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9847572
Flx_Fl_mul 9423945
Flx_Fl_mul_pre 20198714
Flx_Fl_mul_to_monic 11861061
Flx_Fl_sub 151690
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786292
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169694
Flx_Flxq_eval 791484
Flx_Flxq_eval_pre 2444903
Flx_Frobenius 86614
Flx_Frobenius_pre 13817690
Flx_Laplace 27478
Flx_Newton 54384
Flx_add 73802993
Flx_addmulmul 359019
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527531
Flx_blocks_Flm 12970118
Flx_composedprod 0
Flx_composedsum 27693
Flx_convol 0
Flx_deflate 421318
Flx_deriv 22890697
Flx_diff1 660635
Flx_digits 0
Flx_div_by_X_x 36576998
Flx_divrem 30450993
Flx_divrem_Barrett 605149
Flx_divrem_Barrettspec 906367
Flx_divrem_basecase 61232572
Flx_divrem_pre 78664459
Flx_double 1179459
Flx_equal 27589532
Flx_eval 20413352
Flx_eval2BILspec 603313
Flx_eval_powers_pre 48507051
Flx_eval_pre 136141554
Flx_extgcd 857844
Flx_extgcd_basecase 6184350
Flx_extgcd_halfgcd 126090
Flx_extgcd_pre 6184274
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109541
Flx_gcd 35035972
Flx_gcd_basecase 85784174
Flx_gcd_pre 87456973
Flx_get_red 14505976
Flx_get_red_pre 98480033
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088005
Flx_halfgcd_all_pre 1088008
Flx_halfgcd_pre 873169
Flx_halfres_basecase 1095085
Flx_halfres_i 1115052
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160553
Flx_integ 0
Flx_integXn 423315
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134412
Flx_invBarrett_pre 158872
Flx_invLaplace 54652
Flx_is_l_pow 8201
Flx_is_smooth 74256
Flx_is_smooth_pre 118757
Flx_is_smooth_squarefree 126916
Flx_is_squarefree 9207236
Flx_lgrenormalizespec 2135103
Flx_matFrobenius 0
Flx_matFrobenius_pre 86553
Flx_mod_Xn1 31626
Flx_mod_Xnm1 4908779
Flx_mul 26719570
Flx_mul_pre 383295289
Flx_mulhigh_i 949803
Flx_mullimb 1185535493
Flx_mullimb_ok 3395406379
Flx_mulspec 388999722
Flx_mulspec_Kronecker 7369027
Flx_mulspec_basecase 349339508
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10140
Flx_mulspec_mulii_inflate 294055
Flx_mulspec_quartmulii 97164
Flx_neg 4176020
Flx_neg_inplace 1799550
Flx_negspec 4176027
Flx_normalize 64804204
Flx_powu 0
Flx_powu_pre 3947
Flx_recip 0
Flx_recipspec 7288756
Flx_red 1883158
Flx_rem 42211543
Flx_rem_basecase 801498358
Flx_rem_pre 927206572
Flx_renormalize 2171438235
Flx_rescale 1117
Flx_resultant 4609688
Flx_resultant_basecase_pre 14475135
Flx_resultant_pre 14477481
Flx_shift 27402677
Flx_shiftip 633406481
Flx_splitting 147555
Flx_sqr 370286
Flx_sqr_pre 275167688
Flx_sqrspec 275539900
Flx_sqrspec_Kronecker 670273
Flx_sqrspec_basecase 275687728
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2067
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136563450
Flx_subspec 898846
Flx_to_Flv 66648528
Flx_to_FlxX 71405
Flx_to_ZX 38383175
Flx_to_ZX_inplace 36546764
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204548
Flx_translate1 663294
Flx_translate1_basecase 675382
Flx_triple 551294
Flx_unscale 0
Flx_val 4466331
Flx_valrem 28464193
Flxn_div 56588
Flxn_div_pre 56620
Flxn_exp 0
Flxn_expint 109544
Flxn_inv 1037
Flxn_mul 75987
Flxn_mul_pre 5183027
Flxn_mulhigh 527418
Flxn_recip 218021
Flxn_red 6366884
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 20696
Flxq_autpow_pre 69413
Flxq_autpow_sqr 47243
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 779512
Flxq_auttrace_pre 960112
Flxq_auttrace_sqr 652281
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313668
Flxq_easylog 519424
Flxq_inv 335790
Flxq_inv_pre 4183740
Flxq_invsafe 670139
Flxq_invsafe_pre 5326471
Flxq_is2npower 0
Flxq_issquare 404606
Flxq_log 164209
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170645
Flxq_minpoly 45937
Flxq_minpoly_pre 809692
Flxq_mul 18079999
Flxq_mul_pre 194028444
Flxq_norm 443253
Flxq_order 97322
Flxq_pow 933190
Flxq_pow_Frobenius 23767996
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24816570
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232126
Flxq_powers_pre 22439326
Flxq_powu 488361
Flxq_powu_pre 24183234
Flxq_sqr 2763468
Flxq_sqr_pre 274186098
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23092
Flxq_sqrtn_spec_pre 21900
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212211
Flxq_transmul_init 1746322
RgXV_to_FlxV 7
RgX_to_Flx 2209619
Rg_to_F2 1715161
Rg_to_Fl 73085393
Rg_to_Flxq 3461474
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798519
ZXV_to_FlxV 0
ZX_to_Flx 171049084
Z_mod2BIL_Flx 305869
Z_mod2BIL_Flx_2 308799
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593976
ZpX_invLaplace_init 497
_Fl2_mul 1923143
_Fl2_pow 670996
_Fl2_rand 113842
_Fl2_sqr 4906997
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11781120
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149600627
_Flxq_neg 366572
_Flxq_one 22437051
_Flxq_pow 23760589
_Flxq_powu 68
_Flxq_powu_i 22930640
_Flxq_rand 6544
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267987710
bounded_order 393993
gener_Flxq 7201
get_Fl_threshold 2328884837
get_Flx_red 990138060
get_Flxq_field 68902
get_Flxq_star 283431
init_invlaplace 12514
int_to_Flx 12214
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 21001843
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 5625009
kron_unpack_Flx_bits_wide 5696799
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8474020
mkF2 27661541
monomial_Flx 941306
random_Flx 2646104
set_Flxq 68922
set_Flxq_pre 70731989
translate_basecase 688553
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6397329

Generated by: LCOV version 1.16