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 30838-aa3635ec72) Lines: 2553 2925 87.3 %
Date: 2026-04-27 09:26:59 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449709
Fl2_inv_pre 197262
Fl2_mul_pre 17092946
Fl2_norm_pre 97118564
Fl2_pow_pre 671465
Fl2_sqr_pre 4912599
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76080
Fl_Flxq_log 35576
Fl_Xp1_powu 0
Fl_to_Flx 21941362
Flm_to_FlxV 2772
FlvV_polint_tree 2587931
Flv_Flm_polint 104564
Flv_inv 1744747
Flv_invVandermonde 153445
Flv_inv_i 1756760
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9647
Flv_inv_pre_indir 21020630
Flv_inv_pre_inplace 19298158
Flv_polint 1485459
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745952
Flv_roots_to_pol 842236
Flv_to_Flx 25494929
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 325158
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26381
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7279
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 297142
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28995
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171862
FlxV_to_Flm_lg 12971862
FlxV_to_FlxX 397987
FlxV_to_ZXV 609494
FlxV_to_ZXV_inplace 3032473
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9843833
Flx_Fl_mul 9425025
Flx_Fl_mul_pre 20200269
Flx_Fl_mul_to_monic 11860487
Flx_Fl_sub 151685
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786258
Flx_FlxM_qmul 7107
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13170449
Flx_Flxq_eval 791499
Flx_Flxq_eval_pre 2444959
Flx_Frobenius 86619
Flx_Frobenius_pre 13818829
Flx_Laplace 27493
Flx_Newton 54389
Flx_add 73834457
Flx_addmulmul 360092
Flx_addshift 3768888
Flx_addspec 7339173
Flx_blocks 527557
Flx_blocks_Flm 12970938
Flx_composedprod 0
Flx_composedsum 27697
Flx_convol 0
Flx_deflate 421309
Flx_deriv 22891168
Flx_diff1 660637
Flx_digits 0
Flx_div_by_X_x 36560139
Flx_divrem 30453317
Flx_divrem_Barrett 610649
Flx_divrem_Barrettspec 912673
Flx_divrem_basecase 61256707
Flx_divrem_pre 78695324
Flx_double 1179459
Flx_equal 26149870
Flx_eval 20423305
Flx_eval2BILspec 603301
Flx_eval_powers_pre 48549005
Flx_eval_pre 136166802
Flx_extgcd 857832
Flx_extgcd_basecase 6184710
Flx_extgcd_halfgcd 126117
Flx_extgcd_pre 6184688
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109553
Flx_gcd 35040188
Flx_gcd_basecase 85809995
Flx_gcd_pre 87469382
Flx_get_red 14507699
Flx_get_red_pre 97116146
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087824
Flx_halfgcd_all_pre 1087829
Flx_halfgcd_pre 873284
Flx_halfres_basecase 1095083
Flx_halfres_i 1115250
Flx_halfres_pre 1044
Flx_halfres_split 20166
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 161379
Flx_integ 0
Flx_integXn 423394
Flx_invBarrett 0
Flx_invBarrett_Newton 23252
Flx_invBarrett_basecase 134425
Flx_invBarrett_pre 158978
Flx_invLaplace 54664
Flx_is_l_pow 8172
Flx_is_smooth 74256
Flx_is_smooth_pre 118647
Flx_is_smooth_squarefree 126779
Flx_is_squarefree 9207565
Flx_lgrenormalizespec 2150302
Flx_matFrobenius 0
Flx_matFrobenius_pre 86555
Flx_mod_Xn1 31627
Flx_mod_Xnm1 4907592
Flx_mul 26742446
Flx_mul_pre 380655872
Flx_mulhigh_i 949850
Flx_mullimb 1187488518
Flx_mullimb_ok 3344311488
Flx_mulspec 386296345
Flx_mulspec_Kronecker 7389279
Flx_mulspec_basecase 346552751
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10144
Flx_mulspec_mulii_inflate 294049
Flx_mulspec_quartmulii 98883
Flx_neg 4176299
Flx_neg_inplace 1799912
Flx_negspec 4176288
Flx_normalize 64831482
Flx_powu 0
Flx_powu_pre 3960
Flx_recip 0
Flx_recipspec 7302621
Flx_red 1883971
Flx_rem 42232426
Flx_rem_basecase 797463369
Flx_rem_pre 923291138
Flx_renormalize 2163147947
Flx_rescale 1117
Flx_resultant 4609744
Flx_resultant_basecase_pre 14476140
Flx_resultant_pre 14478011
Flx_shift 27406563
Flx_shiftip 629374871
Flx_splitting 147664
Flx_sqr 370300
Flx_sqr_pre 273828911
Flx_sqrspec 274110191
Flx_sqrspec_Kronecker 672039
Flx_sqrspec_basecase 274303034
Flx_sqrspec_halfsqri 134
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2065
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136601580
Flx_subspec 905011
Flx_to_Flv 66657106
Flx_to_FlxX 71405
Flx_to_ZX 38385258
Flx_to_ZX_inplace 36549799
Flx_to_int_halfspec 468588
Flx_to_int_quartspec 207984
Flx_translate1 663309
Flx_translate1_basecase 675393
Flx_triple 551294
Flx_unscale 0
Flx_val 4471807
Flx_valrem 28467452
Flxn_div 56591
Flxn_div_pre 56619
Flxn_exp 0
Flxn_expint 109549
Flxn_inv 1037
Flxn_mul 75985
Flxn_mul_pre 5182946
Flxn_mulhigh 527477
Flxn_recip 218017
Flxn_red 6367620
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 20698
Flxq_autpow_pre 69437
Flxq_autpow_sqr 47293
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112134
Flxq_autsum_pre 98585
Flxq_autsum_sqr 104915
Flxq_auttrace 0
Flxq_auttrace_mul 779618
Flxq_auttrace_pre 960199
Flxq_auttrace_sqr 652385
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519436
Flxq_inv 335789
Flxq_inv_pre 4183796
Flxq_invsafe 670503
Flxq_invsafe_pre 5326868
Flxq_is2npower 0
Flxq_issquare 404606
Flxq_log 164217
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170646
Flxq_minpoly 45944
Flxq_minpoly_pre 809783
Flxq_mul 18080020
Flxq_mul_pre 191253058
Flxq_norm 443255
Flxq_order 97322
Flxq_pow 933188
Flxq_pow_Frobenius 22387694
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23436167
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232125
Flxq_powers_pre 22442094
Flxq_powu 488351
Flxq_powu_pre 24183654
Flxq_sqr 2763489
Flxq_sqr_pre 272878487
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37674
Flxq_sqrtn 23109
Flxq_sqrtn_spec_pre 21915
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210702
Flxq_sumautsum_sqr 295253
Flxq_trace 4724
Flxq_transmul 4213036
Flxq_transmul_init 1746543
RgXV_to_FlxV 7
RgX_to_Flx 2209598
Rg_to_F2 1715180
Rg_to_Fl 73086544
Rg_to_Flxq 3461393
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798947
ZXV_to_FlxV 0
ZX_to_Flx 171065250
Z_mod2BIL_Flx 305863
Z_mod2BIL_Flx_2 308793
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593876
ZpX_invLaplace_init 504
_Fl2_mul 1924584
_Fl2_pow 671459
_Fl2_rand 113894
_Fl2_sqr 4912612
_Flx_add 0
_Flx_composedsum 3889
_Flx_divrem 0
_Flx_mul 11788343
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146814144
_Flxq_neg 366572
_Flxq_one 22441590
_Flxq_pow 22380279
_Flxq_powu 68
_Flxq_powu_i 22931675
_Flxq_rand 6578
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266613484
bounded_order 394042
gener_Flxq 7201
get_Fl_threshold 2315827114
get_Flx_red 986233517
get_Flxq_field 68902
get_Flxq_star 283454
init_invlaplace 12521
int_to_Flx 12214
int_to_Flx_half 507058
int_to_Flx_quart 109103
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21043576
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 5644209
kron_unpack_Flx_bits_wide 5699052
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8497484
mkF2 27668861
monomial_Flx 941422
random_Flx 2646298
set_Flxq 68922
set_Flxq_pre 69360082
translate_basecase 688564
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6416569

Generated by: LCOV version 1.16