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 30818-1d7bcd2a3c) Lines: 2553 2925 87.3 %
Date: 2026-04-16 09:26:05 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449497
Fl2_inv_pre 197218
Fl2_mul_pre 17091271
Fl2_norm_pre 97118568
Fl2_pow_pre 671259
Fl2_sqr_pre 4906248
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76063
Fl_Flxq_log 35563
Fl_Xp1_powu 0
Fl_to_Flx 21921025
Flm_to_FlxV 2772
FlvV_polint_tree 2587671
Flv_Flm_polint 104559
Flv_inv 1744701
Flv_invVandermonde 153445
Flv_inv_i 1756707
Flv_inv_indir 52212
Flv_inv_inplace 12017
Flv_inv_pre 9643
Flv_inv_pre_indir 21017859
Flv_inv_pre_inplace 19292500
Flv_polint 1485421
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745916
Flv_roots_to_pol 842033
Flv_to_Flx 25490913
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 325157
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 297680
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28989
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171863
FlxV_to_Flm_lg 12971416
FlxV_to_FlxX 397987
FlxV_to_ZXV 609479
FlxV_to_ZXV_inplace 3032509
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9843408
Flx_Fl_mul 9424702
Flx_Fl_mul_pre 20200619
Flx_Fl_mul_to_monic 11859275
Flx_Fl_sub 151684
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786211
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169443
Flx_Flxq_eval 791458
Flx_Flxq_eval_pre 2444861
Flx_Frobenius 86619
Flx_Frobenius_pre 13818167
Flx_Laplace 27483
Flx_Newton 54393
Flx_add 73792808
Flx_addmulmul 359019
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527456
Flx_blocks_Flm 12970405
Flx_composedprod 0
Flx_composedsum 27691
Flx_convol 0
Flx_deflate 421317
Flx_deriv 22891277
Flx_diff1 660343
Flx_digits 0
Flx_div_by_X_x 36546887
Flx_divrem 30449793
Flx_divrem_Barrett 605570
Flx_divrem_Barrettspec 906829
Flx_divrem_basecase 61240880
Flx_divrem_pre 78672960
Flx_double 1179459
Flx_equal 27460523
Flx_eval 20407474
Flx_eval2BILspec 603305
Flx_eval_powers_pre 48461485
Flx_eval_pre 136129446
Flx_extgcd 857831
Flx_extgcd_basecase 6184387
Flx_extgcd_halfgcd 126087
Flx_extgcd_pre 6184375
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109543
Flx_gcd 35020227
Flx_gcd_basecase 85779385
Flx_gcd_pre 87446448
Flx_get_red 14506881
Flx_get_red_pre 98408611
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087957
Flx_halfgcd_all_pre 1087964
Flx_halfgcd_pre 873191
Flx_halfres_basecase 1095032
Flx_halfres_i 1115001
Flx_halfres_pre 1044
Flx_halfres_split 19963
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 161449
Flx_integ 0
Flx_integXn 423284
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134412
Flx_invBarrett_pre 158873
Flx_invLaplace 54648
Flx_is_l_pow 8197
Flx_is_smooth 74256
Flx_is_smooth_pre 119230
Flx_is_smooth_squarefree 127383
Flx_is_squarefree 9207255
Flx_lgrenormalizespec 2135753
Flx_matFrobenius 0
Flx_matFrobenius_pre 86556
Flx_mod_Xn1 31626
Flx_mod_Xnm1 4908461
Flx_mul 26718747
Flx_mul_pre 383011021
Flx_mulhigh_i 949614
Flx_mullimb 1184695921
Flx_mullimb_ok 3392777806
Flx_mulspec 388710110
Flx_mulspec_Kronecker 7369244
Flx_mulspec_basecase 349086297
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10139
Flx_mulspec_mulii_inflate 294051
Flx_mulspec_quartmulii 97162
Flx_neg 4176210
Flx_neg_inplace 1799550
Flx_negspec 4176206
Flx_normalize 64806390
Flx_powu 0
Flx_powu_pre 3969
Flx_recip 0
Flx_recipspec 7289609
Flx_red 1884470
Flx_rem 42208514
Flx_rem_basecase 800913997
Flx_rem_pre 926557189
Flx_renormalize 2169422090
Flx_rescale 1117
Flx_resultant 4609191
Flx_resultant_basecase_pre 14473904
Flx_resultant_pre 14476273
Flx_shift 27401817
Flx_shiftip 632761401
Flx_splitting 147718
Flx_sqr 370308
Flx_sqr_pre 274831104
Flx_sqrspec 275171318
Flx_sqrspec_Kronecker 670321
Flx_sqrspec_basecase 275306576
Flx_sqrspec_halfsqri 135
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2067
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136568351
Flx_subspec 899227
Flx_to_Flv 66650107
Flx_to_FlxX 71405
Flx_to_ZX 38382717
Flx_to_ZX_inplace 36545979
Flx_to_int_halfspec 468589
Flx_to_int_quartspec 204541
Flx_translate1 663009
Flx_translate1_basecase 675095
Flx_triple 551294
Flx_unscale 0
Flx_val 4462317
Flx_valrem 28460680
Flxn_div 56590
Flxn_div_pre 56617
Flxn_exp 0
Flxn_expint 109542
Flxn_inv 1037
Flxn_mul 75979
Flxn_mul_pre 5181388
Flxn_mulhigh 527340
Flxn_recip 217997
Flxn_red 6365016
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 69418
Flxq_autpow_sqr 47249
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 779608
Flxq_auttrace_pre 960214
Flxq_auttrace_sqr 652347
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519415
Flxq_inv 335783
Flxq_inv_pre 4183738
Flxq_invsafe 670317
Flxq_invsafe_pre 5326586
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 170645
Flxq_minpoly 45937
Flxq_minpoly_pre 809727
Flxq_mul 18079959
Flxq_mul_pre 193789901
Flxq_norm 443258
Flxq_order 97322
Flxq_pow 933098
Flxq_pow_Frobenius 23690774
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24739279
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232110
Flxq_powers_pre 22440237
Flxq_powu 488353
Flxq_powu_pre 24185047
Flxq_sqr 2763470
Flxq_sqr_pre 273847296
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 4212354
Flxq_transmul_init 1746341
RgXV_to_FlxV 7
RgX_to_Flx 2209607
Rg_to_F2 1715192
Rg_to_Fl 73085323
Rg_to_Flxq 3461425
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798853
ZXV_to_FlxV 0
ZX_to_Flx 171053257
Z_mod2BIL_Flx 305865
Z_mod2BIL_Flx_2 308795
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593565
ZpX_invLaplace_init 497
_Fl2_mul 1922912
_Fl2_pow 671248
_Fl2_rand 113723
_Fl2_sqr 4906282
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11775549
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149360266
_Flxq_neg 366572
_Flxq_one 22439215
_Flxq_pow 23683366
_Flxq_powu 68
_Flxq_powu_i 22931898
_Flxq_rand 6563
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267633893
bounded_order 394011
gener_Flxq 7201
get_Fl_threshold 2327174780
get_Flx_red 989523680
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12214
int_to_Flx_half 507058
int_to_Flx_quart 107384
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21002070
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 5626210
kron_unpack_Flx_bits_wide 5695977
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8474246
mkF2 27661126
monomial_Flx 941327
random_Flx 2646279
set_Flxq 68922
set_Flxq_pre 70657566
translate_basecase 688267
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6397058

Generated by: LCOV version 1.16