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 - polarit2.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30316-0578a48613) Lines: 2267 2508 90.4 %
Date: 2025-06-03 09:18:42 Functions: 214 224 95.5 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
CX_factor 21
FE_matconcat 259
Flv_factorback 108623
FlxqV_factorback 2499
FpV_factorback 8521380
Fpmul 28783312
Fppow 244411
FqV_factorback 14
Lazard 629124
Lazard2 834349
Q_content 1844236
Q_content_safe 1276819943
Q_content_v 179101257
Q_denom 3194487
Q_denom_safe 245971428
Q_denom_v 53803918
Q_div_to_int 486464
Q_divi_to_int 172204578
Q_divmuli_to_int 11579741
Q_divq_to_int 10320173
Q_factor 21602
Q_factor_limit 9696
Q_gcd 1007599637
Q_mul_to_int 0
Q_muli_to_int 141501074
Q_primitive_part 88431099
Q_primpart 9492833
Q_remove_denom 55614578
Qi_cmp 91
Qi_factor 49
Qi_factor_p 42
Qi_gcd 399
Qi_normal 469
Qi_primpart 49
Qi_primpart_try 70
RX_factor 28
R_to_Q_down 525
R_to_Q_up 525
RgC_settype 269307840
RgM_RgC_type 32367018
RgM_rescale_to_int 4607884
RgM_settype 48296612
RgM_type 687296
RgM_type2 7621294
RgV_type 774596
RgV_type2 203
RgXQ_charpoly 13009
RgXQ_charpoly_FpXQ 14
RgXQ_charpoly_fast 13009
RgXQ_charpoly_i 976641
RgXQ_factor 252
RgXQ_factor_i 252
RgXQ_inv 135265
RgXQ_inv_FpXQ 12054
RgXQ_inv_FpXQXQ 7
RgXQ_inv_fast 135265
RgXQ_inv_i 848
RgXQ_mul 1527747
RgXQ_mul_FpXQ 274309
RgXQ_mul_FpXQXQ 385
RgXQ_mul_fast 1527747
RgXQ_ratlift 112
RgXQ_sqr 458366
RgXQ_sqr_FpXQ 14
RgXQ_sqr_FpXQXQ 0
RgXQ_sqr_fast 458366
RgXY_factor 259
RgXY_factor_squarefree 273
RgXY_squff 259
RgX_Frobenius_deflate 343
RgX_Rg_mul_i 2451010
RgX_Rg_type 6063722
RgX_chinese_coprime 0
RgX_cmbf 6475
RgX_disc 124150
RgX_disc_FpX 42
RgX_disc_FpXQX 28
RgX_disc_fast 124150
RgX_disc_i 413
RgX_extgcd 4970
RgX_extgcd_FpX 133
RgX_extgcd_FpXQX 7
RgX_extgcd_fast 4529
RgX_extgcd_simple 0
RgX_extresultant_FpX 77
RgX_extresultant_fast 1568
RgX_factor 13832
RgX_fix_quadratic 98
RgX_gcd 10414734
RgX_gcd_FpX 111909
RgX_gcd_FpXQX 7
RgX_gcd_FpXk 595
RgX_gcd_QXQX 3150
RgX_gcd_ZXQX 2289
RgX_gcd_fast 10414734
RgX_gcd_simple 0
RgX_halfgcd 0
RgX_halfgcd_all 63
RgX_halfgcd_all_FpX 28
RgX_halfgcd_all_FpXQX 0
RgX_halfgcd_all_fast 63
RgX_halfgcd_all_i 14
RgX_is_irred 11165
RgX_is_irred_i 11165
RgX_liftred 10878
RgX_neg_i 834348
RgX_pseudodenom 1248616
RgX_rescale_to_int 37478
RgX_resultant_FpX 28
RgX_resultant_FpXQX 21
RgX_resultant_all 1066163
RgX_resultant_sylvester 169893
RgX_settype 664536034
RgX_sturmpart 763
RgX_sylvestermatrix 169893
RgX_type 2546257
RgX_type2 149322056
RgX_type3 1527747
RgX_type_decode 11719209
RgX_type_is_composite 163891520
Rg_type 171956851
ZV_lcm 3575
ZX_content 13146
Z_content 9893836
Z_content_v 2286458
Zi_mul3 896
Zi_rem 448
c_is_rational 3269
c_zero_gcd 1386
caract_const 126
centermod 10959463
centermod_i 14473686
centermodii 87854620
choosesubtype 38134679
choosetype 372319681
cont_gcd 1924955
cont_gcd_gen 2635
cont_gcd_pol 1912226
cont_gcd_pol_i 1912226
cont_gcd_rfrac 10115
content 72467443
deg1_from_roots 156896
factor 62370
factor0 59403
factor_domain 63064
factorback 1434401
factorback2 24969014
fix_lcm 3680
fix_pol 343
gbezout 427
gc_gcdext 217
gcd3 6390
gcdext0 427
gcdiq 12596415
gcdmonome 3717
gcdqq 27549846
gdivexact 27751675
gen_cmp_RgXY 385
gen_factorback 33822860
ggcd 27700607
ggcd0 5203644
ghalfgcd 91
ginvmod 35287
glcm 3297
glcm0 2898
inexact 11424
init_resultant 1151039
isinexactall 2198
mul 54659654
must_negate 4368
newtonpoly 28
nextSousResultant 834348
normalized_mul 1719099
normalized_to_RgX 1039021
ok_bloc 434
padic_gcd 1435
pol_approx0 0
poldisc0 4714
polfromroots 56
polisirreducible 11165
polresultant0 504
polresultantext 1463
polresultantext0 1575
polsym 113701
polsym_gen 131117
powi 79167685
primitive_part 2800571
primpart 161
qgcd 154
quadratic_to_RgX 420
random_FpX_monic 112
reduceddiscsmith 7
reductum_lg 2445887
rescale_init 29589080
resultant 1151012
resultant2 28
resultant_fast 1151011
rnfcharpoly 224
roots_from_deg1 63896
roots_to_pol 774586
roots_to_pol_FpV 14
roots_to_pol_FqV 7
roots_to_pol_fast 774512
roots_to_pol_r1 264549
row_Q_primpart 17780
s_centermod 0
scalar_bezout 112
scalar_res 7
settype 3813852312
sturmpart 385
sturmpart_i 1148
subres_step 11790
subresext 0
subresext_i 2346
syl_RgC 371755
syl_RgM 169900
sylvestermatrix 7
triv_cont_gcd 3276
vec_Q_primpart 116631
vecprod 10003
zero_bezout 63
zero_extgcd 434
zero_gcd 8258264
zero_gcd2 8879750

Generated by: LCOV version 1.16