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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30772-246cd0a587) Lines: 1881 2002 94.0 % Date: 2026-03-28 09:27:57 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57629507
Q_to_Fp	226838
Qdivii	143124572
Qdivis	1762593
Qdiviu	151477580
Zp_nosquare_m1	42
_serprec	8187500
addQp	4763103
addRc	310718586
addRq	1302
addTp	7
add_intmod_same	3411655
add_rfrac	3017298
add_rfrac_scal	8823993
add_scal	29399086
add_ser_scal	417278
addqf	77
addsub_frac	40739219
addsub_frac_i	14153963
addsub_polmod	7210
addsub_polmod_scal	13458206
addsub_pp	19976567
conj_i	31552280
conjvec	84
divRc	2893794
divRq	301
divTp	3674
div_T_scal	7293188
div_intmod_same	341556
div_polmod_same	37044
div_rfrac	1187510
div_rfrac_pol	260657
div_rfrac_scal	32435
div_scal_T	15557271
div_scal_pol	14531955
div_scal_rfrac	1052294
div_scal_ser	19096
div_ser	875766
div_ser_scal	1543591
divcR	23425317
divfq	42
divpT	1204910
divpp	13214561
divqf	63
divrunextu	213708820
fix_rfrac	207018
gadd	6270894573
gaddsg	270811837
gconj	390604
gdiv	455095878
gdivgs	13376035
gdivgu	61808462
gdivgunextu	1583803
ginv	38283589
gmul	8974164560
gmul2n	149686782
gmulsg	244268424
gmulug	283938451
gred_rfrac2	39473922
gred_rfrac_simple	57632623
gsqr	1343471251
gsub	2906131707
gsubsg	3267100
inv_polmod	189774
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24596786
mulRc	355655645
mulRq	2387
mulTp	4985915
mul_gen_rfrac	161376
mul_intmod_same	2987741
mul_polmod	2674945
mul_polmod_same	8532875
mul_polmod_scal	3219630
mul_rfrac	7910292
mul_rfrac_scal	10435532
mul_scal	197840376
mul_self_scal	7663311
mul_ser_scal	323974
mulcIR	11893950
mulcc	281585453
mulcxI	15655046
mulcxmI	2985989
mulcxpowIs	5564583
mulpp	17505912
mulqf	28
mulqq	1127
mulrfrac	38070850
pol2ser	6378555
quad_polmod_conj	18403
quad_polmod_mul	5860265
quad_polmod_norm	18403
rfrac_denom_mul_scal	9852099
ser_add	4094149
ser_normalize	7658
setfrac	15036177
sqr_polmod	419392
sqr_ser_part	113907
sqrq	70
sub_intmod_same	1017835
transtype	154219665
utoi_sign	65023727
warn_coercion	126

Generated by: LCOV version 1.16