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 30657-d14c2a9e4e) Lines: 2553 2925 87.3 %
Date: 2026-01-30 09:23:18 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl_Xp1_powu 0
Flv_prod 0
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_neg 0
FlxC_sub 0
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_neg 0
FlxM_sub 0
FlxM_to_FlxXV 0
FlxV_Flx_fromdigits 0
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_composedprod 0
Flx_convol 0
Flx_digits 0
Flx_halfgcd 0
Flx_integ 0
Flx_invBarrett 0
Flx_matFrobenius 0
Flx_powu 0
Flx_recip 0
Flx_unscale 0
Flxn_exp 0
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqM_Flxq_mul 0
FlxqV_dotproduct 0
Flxq_autsum 0
Flxq_auttrace 0
Flxq_is2npower 0
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_pow_init 0
Flxq_pow_table 0
ZXV_to_FlxV 0
Z_mod2BIL_Flx_3 0
_Flx_add 0
_Flx_divrem 0
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
kron_pack_Flx_spec_3 0
kron_unpack_Flx_3 0
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
Flxq_autpow 7
RgXV_to_FlxV 7
matJ2_FlxM 13
Flxq_conjvec 20
Flxq_pow_init_pre 28
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
_Flxq_powu 68
Flx_sqrspec_halfsqri 135
Flx_halfgcd_all 154
Flxq_matrix_pow 399
ZpX_invLaplace_init 497
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1043
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2065
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxM_to_ZXM 2485
Flm_to_FlxV 2772
kron_unpack_Flx_2 2930
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3625
Flv_prod_pre 3719
Flx_powu_pre 3842
_Flx_composedsum 3882
Flxq_pow_table_pre 4393
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6560
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8170
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9645
Flx_mulspec_mulii 10141
Flx_sqrspec_quartsqri 10218
Flx_Fl2_eval_pre 10773
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12215
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14448
Flx_translate1 17108
Flx_halfres_split 19963
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21901
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23160
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27346
Flx_composedsum 27548
FlxV_composedsum 28952
Flx_translate1_basecase 29202
Flx_mod_Xn1 31509
FlxV_Flc_mul 34482
Fl_Flxq_log 35546
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40915
translate_basecase 42367
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47315
Flv_inv_indir 52214
kron_pack_Flx_spec 53168
Flx_Newton 54091
Flx_invLaplace 54363
Flxn_div 56370
Flxn_div_pre 56385
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69452
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75841
Fl2_sqrtn_pre 76084
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86569
Flx_Frobenius 86618
Flx_mulspec_quartmulii 97166
Flxq_order 97328
Flxq_autsum_pre 98770
FlxC_to_ZXC 104060
Flv_Flm_polint 104562
Flxq_autsum_sqr 105116
int_to_Flx_quart 107385
Flxn_expint 109393
Flx_fromNewton 109398
Flxq_autsum_mul 112480
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113763
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 118533
Flx_is_smooth_squarefree 126721
Fl2_norm_pre 127601
Flx_invBarrett_basecase 134392
Flx_extgcd_halfgcd 146650
Flx_splitting 146811
Flx_Fl_sub 151680
Flv_invVandermonde 153445
Flx_invBarrett_pre 158852
Flx_inflate 160122
Flxq_log 164210
Flxq_matrix_pow_pre 170664
FlxV_to_Flm 171885
Fl2_inv_pre 197357
Flx_to_int_quartspec 204550
Flxq_sumautsum_pre 210713
Flxn_recip 217404
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232002
FlxqC_red_pre 234845
Flxq_div 237891
get_Flxq_star 283439
FlxT_red 289616
Flx_mulspec_mulii_inflate 294051
Flxq_sumautsum_sqr 295314
Z_mod2BIL_Flx 305865
Z_mod2BIL_Flx_2 308795
FlxC_eval_powers_pre 325157
Flxq_inv 335767
Flx_sqr 354582
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395384
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416801
Flx_deflate 420789
Flx_integXn 422802
Flxq_norm 443132
Fl2_equal1 449801
Flx_to_int_halfspec 468589
Flxq_powu 488328
int_to_Flx_half 507058
Flxq_easylog 519356
Flxn_mulhigh 526382
Flx_blocks 526424
Flx_eval2BILspec 603305
Flx_divrem_Barrett 603307
FlxV_to_ZXV 606830
Flxq_auttrace_sqr 652725
Flxq_invsafe 670486
_Fl2_pow 671671
Fl2_pow_pre 671680
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 694998
Flxq_auttrace_mul 780014
Flx_Flxq_eval 791305
Flxq_minpoly_pre 809669
Flv_roots_to_pol 842142
Flx_extgcd 856792
Flx_halfgcd_pre 873211
Flx_subspec 897227
Flx_divrem_Barrettspec 904853
monomial_Flx 941288
Flxq_pow 948247
Flx_mulhigh_i 948487
Flxq_auttrace_pre 959896
Flx_triple 1049261
Flx_halfgcd_all_i 1126856
Flx_halfgcd_all_pre 1126862
Flx_halfres_basecase 1133934
Flx_halfres_i 1153899
_Flxq_rmul 1461838
Flv_polint 1485205
_Flxq_red 1550928
Rg_to_F2 1710048
Flv_inv 1744489
Flv_producttree 1745687
Flxq_transmul_init 1746403
Flv_inv_i 1756503
Flx_neg_inplace 1780025
Flx_Flv_multieval_tree 1785985
Flx_red 1875948
_Fl2_mul 1924267
Fl2_mul_pre 1953385
Flx_lgrenormalizespec 2132031
RgX_to_Flx 2249937
Flxq_div_pre 2416846
Flx_double 2443925
Flx_Flxq_eval_pre 2444592
FlvV_polint_tree 2587531
random_Flx 2646023
Flxq_sqr 2763156
FlxV_to_ZXV_inplace 3031595
Flx_negspec 3263243
Flx_neg 3263257
Rg_to_Flxq 3588226
Flx_addshift 3729093
ZXT_to_FlxT 3811602
Flxq_transmul 4212703
Flxq_inv_pre 4286508
Flx_val 4484840
Flx_resultant 4731836
Flx_mod_Xnm1 4907444
_Fl2_sqr 4911722
Fl2_sqr_pre 4911728
Flxn_mul_pre 5181175
Flxq_invsafe_pre 5429584
kron_unpack_Flx_bits_narrow 5659531
kron_unpack_Flx_bits_wide 5669071
Flx_extgcd_basecase 6286352
Flx_extgcd_pre 6286359
Flxn_red 6363944
zx_to_Flx 6421416
Flx_addspec 7259598
Flx_recipspec 7286112
mkF2 7325472
Flx_Fl_mul 7326595
Flx_mulspec_Kronecker 7351491
Z_to_Flx 7556676
maxbitcoeffpol 8479571
Flx_is_squarefree 9181213
Flx_Fl_add 9845736
_Flx_mul 11784453
Flx_Fl_mul_to_monic 11856694
Flx_blocks_Flm 12968435
FlxV_to_Flm_lg 12968841
Flx_FlxqV_eval_pre 13167751
Flxq_mul 13192574
Flx_Frobenius_pre 13813440
Flx_get_red 14504127
Flx_resultant_basecase_pre 14597083
Flx_resultant_pre 14599057
Flx_Fl_mul_pre 18291039
Flv_inv_pre_inplace 19405214
Flx_eval 20444659
kron_pack_Flx_spec_bits 20990195
Flv_inv_pre_indir 21132607
Fl_to_Flx 21948077
_Flxq_pow 22371923
Flxq_pow_Frobenius 22379334
Flxq_powers_pre 22437505
_Flxq_one 22437981
_Flxq_powu_i 22926024
Flx_deriv 22981141
Flxq_pow_pre 23442755
Flxq_powu_pre 24178452
Flv_to_Flx 25488431
Flx_equal 26931242
Flx_shift 27400398
Flx_mul 27805684
Flx_valrem 28491639
Flx_divrem 30450246
Flx_gcd 35023533
Flx_to_ZX_inplace 36575243
Flx_div_by_X_x 36578789
Flx_to_ZX 38300030
Flx_rem 42231387
Flx_eval_powers_pre 48697449
Flx_divrem_basecase 62288084
Flx_normalize 64840586
Flx_add 66124185
Flx_to_Flv 66650010
set_Flxq_pre 69362767
Rg_to_Fl 73209953
Flx_divrem_pre 79731533
Flx_gcd_basecase 85789306
Flx_gcd_pre 87452703
Flx_get_red_pre 97114564
Flx_eval_pre 136199674
Flx_sub 138649194
_Flxq_mul 146903039
ZX_to_Flx 171004411
Flxq_mul_pre 188111233
_Flxq_sqr 267554974
Flxq_sqr_pre 275405343
Flx_sqrspec_basecase 275681337
Flx_sqr_pre 276394374
Flx_sqrspec 276487449
Flx_mulspec_basecase 347241663
Flx_mul_pre 379393089
Flx_mulspec 384998464
Flx_shiftip 632115426
Flx_rem_basecase 799013275
Flx_rem_pre 923042456
get_Flx_red 987130868
Flx_mullimb 1186476750
Flx_renormalize 2153237015
get_Fl_threshold 2326691813
Flx_mullimb_ok 3376832150

Generated by: LCOV version 1.16